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Underwater Wireless Sensor Network (UWSN) is newly emerged and developed branch of Wireless sensor technology. In UWSN small sensor nodes with limited battery and limited memory are deployed in underwater environment. Due to multiple differences from terrestrial Wireless Sensor Networks (WSN), radio waves cannot be used in underwater communication. Acoustic channels are used for communication in sea...
Majority of existing Delay Tolerant Network (DTN) multicast routing approaches attempt to individually optimize performance indices such as message delay, forwarding cost, and required storage. Very few define composite cost factors by combining multiple such indices into a single index. This paper introduces a composite index, namely economic gain, which combines revenue from delivery and forwarding...
This paper presents a multicast Delay Tolerant Network (DTN) routing protocol that uses an economic gain based routing utility for device-to-device (D2D) commercial coupon dissemination. Majority of the existing DTN routing approaches are not practically applicable to commercial content dissemination since they attempt to individually optimize performance indices such as message delay, forwarding...
A Smart Water Metering Network (SWMN) consists of smart water meters deployed at the customer's premises, and Data Acquisition Points (DAPs) that receive and transmit data from the water meters to the data processing center. Efficient routing protocols are important in SWMNS. In this paper, a multi-sink Ad hoc On Demand Distance Vector (MS-AODV) routing algorithm, which is a reactive protocol, is...
We present in this paper a multi-layer scheme for QoS Management in MANETs. Our proposal is to combine multiple communication protocols of different layers, to provide an adapted QoS to a different traffic classes. Protocols are modified to improve their awareness of the quality of service, so that new extensions with QoS support are developed. We model QoS service at routing layer, via a QoS extension...
In this paper, we present preliminary results from a performance comparison between the two multicast routing protocols ODMRP and SMF. While SMF uses a proactive selection of forwarding nodes, ODMRP is a reactive approach to multicast routing. For the evaluation, we use an two-step approach. First, we perform emulation-based measurements in a virtualized test bed utilizing the ns-3 IEEE 802.11 model...
VANET — Vehicular Ad-Hoc Networks performance is very significant in improving the transport effectiveness and increasing the safety. VANET comprises the capability in enlightening roadway safety, and in giving the passengers eases. VANET is the still other emergent transmission network which provides safety broadcasting. The function of VANETs was frequently recommended for usage in vehicular safety...
Research in Mobile Ad-hoc Networks (MANETs) has been in-progress towards the real implementation of ad-hoc routing protocols to be used in the real-time applications. However, existing approaches implement ad-hoc routing protocols as standalone daemons to serve only pure routing functionalities, leading to difficulties on the network configuration once multiple routing protocols are running in the...
Wireless Sensor Network (WSN) is consisting of independent and distributed sensors to monitor physical or environmental conditions, such as temperature, sound, pressure, etc. Routing protocols represent an essential aspect of the performance of mobile wireless networks. This paper presents a comparative analysis between several routing algorithms and their impact on the performance of WSN. The performance...
The need for efficient optimization of network resources to prolong the life time of large-scale and dense deployments of Wireless Sensor Networks opened the door for researchers to study and produce efficient clustering techniques. Clustering has been proven to be an effective approach for organizing a large scale WSN into connected groups increasing the life time and the reliability of such networks...
The main function of a network layer is to route packets from the source machine to the destination machine. Algorithms that are used for route selection and data structure are the main parts for the network layer. In this paper we examine the network performance when using three routing protocols, RIP, OSPF and EIGRP. Video, HTTP and Voice application where configured for network transfer. We also...
Link-state based routing protocols are dominant in Shortest Path Bridges (IEEE 802.1aq) and also at TRILL (IETF) Rbridges. Both standards propose a hybrid of switch and router adding a link state routing protocol in layer two that computes shortest paths between bridges. Surprisingly, path exploration mechanisms have not yet been considered at standardization bodies, in spite of some outstanding advantages:...
The two ad-hoc routing protocols, Ad-hoc On demand Distance Vector (AODV) and Dynamic Source Routing (DSR) suffer a number of shortcomings. The main issues are longer path set up time in case of link failures, scalability problem because of routing overhead and etc. A combination of the two routing protocols called DOA (DSR over AODV) is used to overcome these issues. DOA is usually implemented using...
Multicast video streaming is experiencing a significant growth in wireless networks thanks to the resources provided by 4G/LTE and WiFi services. However, wireless communications are affected by attenuation, shadowing, fading, and unpredictable interference, that make multicast services extremely difficult (no ARQ). Nodes close to the streaming source (e.g., a node or an AP), however, always experience...
In this paper, we present analytical study of routing overhead of reactive routing protocols for Wireless Multihop Networks (WMhNs). To accomplish the framework of generalized routing overhead, we choose Ad-Hoc on Demand Distance Vector (AODV), Dynamic Source Routing (DSR) and Dynamic MANET on Demand (DYMO). Considering basic themes of these protocols, we enhance the generalized network models by...
This paper presents mathematical framework and study of proactive routing Protocols. The performance analysis of three major proactive routing protocols: Destination-Sequenced Distance Vector (DSDV), Fish-eye State Routing (FSR) and Optimized Link State Routing (OLSR) are under consideration in this work. Taking these routing protocols into account, we enhance existing framework. In the next step...
Recently, a great interest to routing concept in Delay Tolerant Networks has been increased notably. Deplorably, while several DTN routing protocols have been proposed, there are hardly any approaches which take as objective an attempt to improve such protocols. In this paper we focus on the predictability concept and present a new routing algorithm for DTN. We present a comparison to other existing...
From time to time, global routing is affected by local misconfigurations of global impact. Incorrect routing information leaks into the global routing — IP address space becomes hijacked. As such incidents are highly problematic and may even serve as blueprints for purposeful attacks, concepts to prevent or at least automatically detect such incidents are desirable. As planned architectures to prevent...
WSN has been widely used in many prospects, and more and more researchers at home and abroad are paying attention to this hot field. However, due to the deployment of environmental requirements and their conditions, most of the mechanisms used in traditional wireless networks are difficult to directly apply to wireless sensor networks. So, it is very eager to design a special wireless sensor network...
The Hierarchical Optimized Link State Routing (HOLSR) protocol was designed to improve scalability of heterogeneous Mobile Ad-Hoc Networks (MANETs). HOLSR is derived from the OLSR protocol and implements Multipoint Relay (MPR) nodes as a flooding mechanism for distributing control information. Unlike OLSR, nodes are organized in clusters and implement Hierarchical Topology Control (HTC) messages for...
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