Wireless Personal Communications

Items from 1 to 20 out of 8,162 results

article

Priority and Collision Detection with Active Signaling - The Channel Access Mechanism of HIPERLAN

Philippe Jacquet, Pascale Minet, Paul Mühlethaler, Nicolas Rivierre

Wireless Personal Communications > 1997 > 4 > 1 > 11-25

HIPERLAN will provide a 23.5 Mbps data rate transmission to radio channel user. The medium access control is based on carrier sense (CSMA) and on active signaling. Active signaling is an original feature which makes it possible to merge priority contention and collision detection into an elegant and efficient channel access mechanism. In particular it is expected to boost the performance of HIPERLAN...

article

Minimization of the Intermodulation Distortion of a Nonlinearly Amplified OFDM Signal

M. Pauli, H.-P. Kuchenbecker

Wireless Personal Communications > 1997 > 4 > 1 > 93-101

In the course of development of the HIPERLAN-Standard OFDM (Orthogonal Frequency Division Multiplexing) was a possible candidate for the modulation scheme. An advantage of OFDM is that it can be implemented simply and that it is suitable for the transmission of high data rates in the mobile radio channel. Furthermore, it is insensitive against disturbances caused by multipath propagation. However,...

article

Synchronisation Techniques for HIPERLAN

D.A.G. Gillies, Y.J. Guo, S.K. Barton

Wireless Personal Communications > 1997 > 4 > 1 > 1-10

Timing recovery in the High Performance Radio Local Area Network (HIPERLAN) standard is likely to be performed with the aid of synchronisation sequences embedded in the user data, which will be detected with matched filters. A directed search using a form of genetic algorithm has been performed to obtain suitable sequences of lengths up to 80 bits, and simulations of their performance have been undertaken...

article

A Multicarrier Scheme for HIPERLAN

Michael Aldinger

Wireless Personal Communications > 1997 > 4 > 1 > 81-91

After a short description of the principles of a multicarrier COFDM (Coded Orthogonal Frequency Division Multiplex) scheme some simulation results concerning bit- and packet error rates gained with three different characteristic multipath channels are presented and discussed. Aspects of COFDM design principles and complexity of the modulation and demodulation part of the system, as well as effects...

article

Increasing Reliability in Cable-Free Radio LANs Low Level Forwarding in HIPERLAN

Philippe Jacquet, Pascale Minet, Paul Mühlethaler, Nicolas Rivierre

Wireless Personal Communications > 1997 > 4 > 1 > 51-63

Radio LANs are emerging in the computing world. They are supported by distinct configurations: on the one hand radio LANs with base stations and a wired backbone, on the other hand radio LANs implementing Intra-forwarding. Adding a new node in a radio LAN with Intra-forwarding, increases the reliability, while this reliability decreases with ad hoc or hub configurations. This advantage of Intra-forwarding...

article

Performance of the EY-NPMA Protocol

K. Fu, Y.J. Guo, S.K. Barton

Wireless Personal Communications > 1997 > 4 > 1 > 41-50

The throughput of the Elimination Yield Non-pre-emptive Priority Multiple Access (EY-NPMA) protocol, which has been chosen as the medium access control (MAC) protocol for HIPERLAN, is simulated. Connection between users is based on a statistical model of path loss with power law against distance and 6 dB log-normal shadowing. It is shown that the throughput performance of the EY-NPMA protocol in networks...

article

Analysis and optimisation of the HIPERLAN Channel Access Contention Scheme

S. Chevrel, A.H. Aghvami, H.-Y. Lach, L. Taylor

Wireless Personal Communications > 1997 > 4 > 1 > 27-39

This paper analyses the HIPERLAN channel access mechanism. Both a purely mathematical and a simulation model are built in order to evaluate the two successive phases of the contention scheme. Several optimisations, based on the choice of parametric values, are proposed, evaluated and compared.

article

Data Transfer for HIPERLAN

Philippe Jacquet, Pascale Minet, Paul Mühlethaler, Nicolas Rivierre

Wireless Personal Communications > 1997 > 4 > 1 > 65-80

HIPERLAN offers a high speed (23.5 Mbit/s) radio LAN and therefore HIPERLAN is likely to support various kinds of traffic requirements. A Data Transfer function is in charge of handling various traffics which can result in simultaneous services. HIPERLAN nodes are not necessarily within direct radio range; and in some cases packets are forwarded by intermediate stations from the source node to the...

article

A Novel Modelling Technique for Tracing Mobile Users in a Cellular Mobile Communication System

M. M. Zonoozi, P. Dassanayake

Wireless Personal Communications > 1997 > 4 > 2 > 185-205

Mobility of users in a cellular mobile communication system has been formulated mathematically under generalized conditions. Based on this model a computer simulation has been developed. This mobility model is used to examine cell residence time distribution in cellular environments defined by different cell sizes and mobility parameters. It is shown that cell residence time can be described by the...

article

Performance of Connectionless Data Service in High Density Microcell

M. Ostrowski

Wireless Personal Communications > 1997 > 4 > 2 > 207-216

Two categories of commercial wireless packet services exist today – a standalone system where the entire bandwidth is dedicated to the transmission of data packets (e.g. ARDIS, Mobitex), and an overlay system, where the unused channels of an existing cellular phone system are used (e.g. CDPD, GPRS). This paper examines the performance of the overlay service in a high density Manhattan street grid...

article

A Parallel Architecture for Network Control and Mobility Tracking in Wireless Systems

Abhaya Asthana, Paul Krzyzanowski

Wireless Personal Communications > 1997 > 4 > 2 > 237-256

In a wireless system the network logically rearranges itself rapidly whenever terminals move from cell to cell. This ability to adapt itself to changing locations of its terminals adds a new layer of complexity to wireless control software. With ever increasing demand for more capacity and the addition of new service features, many limitations and bottlenecks in the underlying network infrastructure...

article

Associativity-Based Routing for Ad Hoc Mobile Networks

Chai-Keong Toh

Wireless Personal Communications > 1997 > 4 > 2 > 103-139

This paper presents a new, simple and bandwidth-efficient distributed routing protocol to support mobile computing in a conference size ad-hoc mobile network environment. Unlike the conventional approaches such as link-state and distance-vector distributed routing algorithms, our protocol does not attempt to consistently maintain routing information in every node. In an ad-hoc mobile network where...

article

Handoffs in Cellular Wireless Networks: The Daedalus Implementation and Experience

Srinivasan Seshan, Hari Balakrishnan, Randy H. Katz

Wireless Personal Communications > 1997 > 4 > 2 > 141-162

Network protocols in cellular wireless data networks must update routes as a mobile host moves between cells. These routing updates combined with some associated state changes are called handoffs. Most current handoff schemes in wireless networks result in data loss or large variations in packet delivery times. Unfortunately, many applications, such as real-time multimedia applications and reliable...

article

Location-Independent Access in Mobile Systems

Zygmunt J. Haas

Wireless Personal Communications > 1997 > 4 > 2 > 163-183

In this paper, we report on the design of a protocol for transparent, location-independent access in mobile systems. The protocol, termed by us Mobile Client/Server Protocol (MCSP) is an implementation of a communication layer on a mobile host and a stationary machine within the wireline network, and provides middleware functionality. The MCSP supports communication services through the client/server...

article

Challenges and Solutions to Adaptive Computing and Seamless Mobility over Heterogeneous Wireless Networks

Vaduvur Bharghavan

Wireless Personal Communications > 1997 > 4 > 2 > 217-256

Recent years have witnessed the rapid evolution of commercially available mobile computing environments. This has given rise to the presence of several viable, but non-interoperable wireless networking technologies – each targeting a niche mobility environment and providing a distinct quality of service. The lack of a uniform set of standards, the heterogeneity in the quality of service, and the diversity...

article

An Efficient Link Allocation Algorithm for ATM-Based Personal Communication Networks

Nen-Fu Huang, Rui-Chi Wang

Wireless Personal Communications > 1997 > 4 > 2 > 257-275

The wireless personal communication networks (PCN) will play an important role throughout the 1990s and into the next century. Due to the demand for extending the wireless services to integrated services such as data, voice, images and video, a high-speed backbone network to connect the base stations in the microcells is required. One of the possible solutions is to apply the ATM-based backbone network...

article

A Novel Interpolation Method for Maximum Likelihood Timing Recovery

Deirdre O'Shea, Sean Mcgrath

Wireless Personal Communications > 1997 > 4 > 3 > 315-324

An algorithm to recover bit timing is proposed which maximises a quadratic polynomial approximation to the log-likelihood function. The exact equation for the mean of the log-likelihood function derivative, i.e. the S-curve, is derived and shown to have a sine form. In each time interval the S-curve has two zeros. The zero corresponding to the maximum of the likelihood function is resolved using quadratic...

article

Combined Space Diversity Reception and Trellis Coding for Rayleigh Fading Channels

Guillem Femenias, Ramon Agusti

Wireless Personal Communications > 1997 > 4 > 3 > 299-314

Space diversity reception, in which several signals received at different antennas are combined, is a well known method that can be used to combat the effects of fading in wireless systems. Also, trellis coded modulation (TCM), when combined with interleaving of sufficient depth, is known to provide some form of time diversity that allows the achievement of good error performance in fading environments...

article

Dual-Space Diversity over Land Mobile Satellite Channels Operating in the L and K Frequency Bands

W. Zhuang, J.-Y. Chouinard, D. Makrakis

Wireless Personal Communications > 1997 > 4 > 3 > 277-298

Land mobile satellite communication systems at Ka/K band (30/20 GHz) are attracting more and more attention to researchers because of its frequency band availability and the possibility of using small earth stations and satellite antennas for the systems. However, the Ka/K-band communications also give significant challenges in the system design due to severe channel impairments expected from the...

article

Advanced Wireless Access System

Keisuke Ogawa, Akira Hashimoto, Kenji Kohiyama

Wireless Personal Communications > 1997 > 4 > 3 > 325-338

The key words for the future telecommunications are personalization, multi-media services and high accessibility to the network. These trends naturally lead to radio media application to access links. In this sense, this paper proposes an advanced wireless access system with a capacity supporting broadband video and data services. Concept of the system can be defined as a new radiocommunication category...

Filter options

FreeMarker template error (HTML_DEBUG mode; use RETHROW in production!)


Java method "org.springframework.web.servlet.support.RequestContext.getMessage(String)" threw an exception when invoked on org.springframework.web.servlet.support.RequestContext object "org.springframework.web.servlet.support.RequestContext@1f128467"; see cause exception in the Java stack trace.

----
FTL stack trace ("~" means nesting-related):
	- Failed at: ${springMacroRequestContext.getMessag...  [in template "META-INF/freemarker-templates/spring.ftl" in macro "message" at line 28, column 22]
	- Reached through: @spring.message "portal.searchResult...  [in template "META-INF/freemarker-templates/portal/search/facets.ftl" at line 149, column 33]
----

Java stack trace (for programmers):
----
freemarker.core._TemplateModelException: [... Exception message was already printed; see it above ...]
	at freemarker.ext.beans._MethodUtil.newInvocationTemplateModelException(_MethodUtil.java:289)
	at freemarker.ext.beans._MethodUtil.newInvocationTemplateModelException(_MethodUtil.java:261)
	at freemarker.ext.beans.OverloadedMethodsModel.exec(OverloadedMethodsModel.java:65)
	at freemarker.core.MethodCall._eval(MethodCall.java:65)
	at freemarker.core.Expression.eval(Expression.java:81)
	at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:96)
	at freemarker.core.DollarVariable.accept(DollarVariable.java:59)
	at freemarker.core.Environment.visit(Environment.java:363)
	at freemarker.core.Environment.invoke(Environment.java:715)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:83)
	at freemarker.core.Environment.visit(Environment.java:327)
	at freemarker.core.Environment.visit(Environment.java:333)
	at freemarker.core.Environment.visit(Environment.java:369)
	at freemarker.core.IteratorBlock$IterationContext.executedNestedContentForCollOrSeqListing(IteratorBlock.java:316)
	at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:272)
	at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:243)
	at freemarker.core.Environment.visitIteratorBlock(Environment.java:596)
	at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:108)
	at freemarker.core.IteratorBlock.accept(IteratorBlock.java:94)
	at freemarker.core.Environment.visit(Environment.java:327)
	at freemarker.core.Environment.visit(Environment.java:333)
	at freemarker.core.Environment.visit(Environment.java:333)
	at freemarker.core.Environment.visit(Environment.java:333)
	at freemarker.core.Environment.process(Environment.java:306)
	at freemarker.ext.servlet.FreemarkerServlet.processEnvironment(FreemarkerServlet.java:910)
	at freemarker.ext.servlet.FreemarkerServlet.process(FreemarkerServlet.java:879)
	at freemarker.ext.servlet.FreemarkerServlet.doGet(FreemarkerServlet.java:764)
	at org.apache.tiles.request.freemarker.render.FreemarkerRenderer.render(FreemarkerRenderer.java:73)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:259)
	at org.apache.tiles.template.InsertAttributeModel.renderAttribute(InsertAttributeModel.java:188)
	at org.apache.tiles.template.InsertAttributeModel.execute(InsertAttributeModel.java:132)
	at org.apache.tiles.jsp.taglib.InsertAttributeTag.doTag(InsertAttributeTag.java:299)
	at freemarker.ext.jsp.SimpleTagDirectiveModel.execute(SimpleTagDirectiveModel.java:92)
	at freemarker.core.Environment.visit(Environment.java:427)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:101)
	at freemarker.core.Environment.visit(Environment.java:327)
	at freemarker.core.Environment.visit(Environment.java:333)
	at freemarker.core.Environment.process(Environment.java:306)
	at freemarker.ext.servlet.FreemarkerServlet.processEnvironment(FreemarkerServlet.java:910)
	at freemarker.ext.servlet.FreemarkerServlet.process(FreemarkerServlet.java:879)
	at freemarker.ext.servlet.FreemarkerServlet.doGet(FreemarkerServlet.java:764)
	at org.apache.tiles.request.freemarker.render.FreemarkerRenderer.render(FreemarkerRenderer.java:73)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:259)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:397)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:238)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:221)
	at org.apache.tiles.renderer.DefinitionRenderer.render(DefinitionRenderer.java:59)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:259)
	at org.apache.tiles.template.InsertAttributeModel.renderAttribute(InsertAttributeModel.java:188)
	at org.apache.tiles.template.InsertAttributeModel.execute(InsertAttributeModel.java:132)
	at org.apache.tiles.jsp.taglib.InsertAttributeTag.doTag(InsertAttributeTag.java:299)
	at freemarker.ext.jsp.SimpleTagDirectiveModel.execute(SimpleTagDirectiveModel.java:92)
	at freemarker.core.Environment.visit(Environment.java:427)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:101)
	at freemarker.core.Environment.visit(Environment.java:327)
	at freemarker.core.Environment.visit(Environment.java:333)
	at freemarker.core.Environment.process(Environment.java:306)
	at freemarker.ext.servlet.FreemarkerServlet.processEnvironment(FreemarkerServlet.java:910)
	at freemarker.ext.servlet.FreemarkerServlet.process(FreemarkerServlet.java:879)
	at freemarker.ext.servlet.FreemarkerServlet.doGet(FreemarkerServlet.java:764)
	at org.apache.tiles.request.freemarker.render.FreemarkerRenderer.render(FreemarkerRenderer.java:73)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:259)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:397)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:238)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:221)
	at org.apache.tiles.renderer.DefinitionRenderer.render(DefinitionRenderer.java:59)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:259)
	at org.apache.tiles.template.InsertAttributeModel.renderAttribute(InsertAttributeModel.java:188)
	at org.apache.tiles.template.InsertAttributeModel.execute(InsertAttributeModel.java:132)
	at org.apache.tiles.jsp.taglib.InsertAttributeTag.doTag(InsertAttributeTag.java:299)
	at freemarker.ext.jsp.SimpleTagDirectiveModel.execute(SimpleTagDirectiveModel.java:92)
	at freemarker.core.Environment.visit(Environment.java:427)
	at freemarker.core.UnifiedCall.accept(UnifiedCall.java:101)
	at freemarker.core.Environment.visit(Environment.java:327)
	at freemarker.core.Environment.visit(Environment.java:333)
	at freemarker.core.Environment.process(Environment.java:306)
	at freemarker.ext.servlet.FreemarkerServlet.processEnvironment(FreemarkerServlet.java:910)
	at freemarker.ext.servlet.FreemarkerServlet.process(FreemarkerServlet.java:879)
	at freemarker.ext.servlet.FreemarkerServlet.doGet(FreemarkerServlet.java:764)
	at org.apache.tiles.request.freemarker.render.FreemarkerRenderer.render(FreemarkerRenderer.java:73)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:259)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:397)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:238)
	at org.apache.tiles.impl.BasicTilesContainer.render(BasicTilesContainer.java:221)
	at org.apache.tiles.renderer.DefinitionRenderer.render(DefinitionRenderer.java:59)
	at org.springframework.web.servlet.view.tiles3.TilesView.renderMergedOutputModel(TilesView.java:132)
	at pl.edu.icm.synat.common.ui.tiles.FreeMarkerAndTilesView.renderMergedOutputModel(FreeMarkerAndTilesView.java:148)
	at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
	at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1243)
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:965)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:856)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:841)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:316)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:126)
	at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:90)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:122)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:149)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:168)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:48)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:207)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:184)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:205)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.jasig.cas.client.session.SingleSignOutFilter.doFilter(SingleSignOutFilter.java:100)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:205)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:120)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:120)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:53)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.session.ConcurrentSessionFilter.doFilter(ConcurrentSessionFilter.java:133)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:91)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.access.channel.ChannelProcessingFilter.doFilter(ChannelProcessingFilter.java:152)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.saml.metadata.MetadataGeneratorFilter.doFilter(MetadataGeneratorFilter.java:87)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at pl.edu.icm.synat.portal.web.security.PortalLocaleFilter.doFilterInternal(PortalLocaleFilter.java:51)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:213)
	at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176)
	at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
	at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at ch.qos.logback.classic.helpers.MDCInsertingServletFilter.doFilter(MDCInsertingServletFilter.java:51)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at pl.edu.icm.synat.portal.web.security.RemoteIpFilter.doFilter(RemoteIpFilter.java:75)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:219)
	at net.bull.javamelody.MonitoringFilter.doFilter(MonitoringFilter.java:196)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421)
	at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:190)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.springframework.context.NoSuchMessageException: No message found under code 'portal.searchResult.facet.^journalYear^journalVolume' for locale 'en'.
	at org.springframework.context.support.AbstractMessageSource.getMessage(AbstractMessageSource.java:159)
	at org.springframework.context.support.DelegatingMessageSource.getMessage(DelegatingMessageSource.java:66)
	at org.springframework.context.support.AbstractApplicationContext.getMessage(AbstractApplicationContext.java:1129)
	at org.springframework.web.servlet.support.RequestContext.getMessage(RequestContext.java:712)
	at org.springframework.web.servlet.support.RequestContext.getMessage(RequestContext.java:678)
	at sun.reflect.GeneratedMethodAccessor237.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:1458)
	at freemarker.ext.beans.ReflectionCallableMemberDescriptor.invokeMethod(ReflectionCallableMemberDescriptor.java:56)
	at freemarker.ext.beans.MemberAndArguments.invokeMethod(MemberAndArguments.java:51)
	at freemarker.ext.beans.OverloadedMethodsModel.exec(OverloadedMethodsModel.java:61)
	... 179 more

Financed by the National Centre for Research and Development under grant No. SP/I/1/77065/10 by the strategic scientific research and experimental development program: SYNAT - “Interdisciplinary System for Interactive Scientific and Scientific-Technical Information”.

INFONA - science communication portal

Wireless Personal Communications

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Reporting an error / abuse

Sending the report failed

Accessibility options