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While Performance Enhancement Proxy (PEP) is a promising solution for TCP's performance issues over satellite links, it has a serious constraint in terms of a translation table limit of 500 entries that proved to be detrimental when a large number of TCP sessions need to be maintained between endpoints. We experienced one of these cases in Saudi Aramco where web-based drilling applications were establishing...
The reliability of automated system management solutions will increase in importance as the use of cloud computing and data centres expands. As part of a study to improve reliability, this paper provides a classification of faults that can occur in automated system management and proposes a method for determining the severity of such faults. A baseline deployment is compared with an alternate proposed...
A mobile agent is a particular type of agent with the ability to migrate from one host to another where it can resume its execution. Mobile agents can be used in applications for wireless network to save bandwidth and time. In this paper we consider dependability aspect, especially reliability issues that need to be addressed before the mobile agents can be used for a broad range of commercial applications...
Many trust evaluation models have been proposed for P2P networks recently. While in these models, nodes usually need to record all nodes' trust, or the time complexity is high. In our paper, we propose a trust evaluation model based on resistive network. In which, nodes only need to record their neighbors' trust and the time complexity is lower. The experiments and analysis show that, on the premise...
Data transmission reliability is an important issue in the design of wireless sensor networks. This paper proposes a new network coding strategy combing with ARQ to improve data transmission reliability. By using single-path transmission and multi-path transmission,performance analysis of the presented strategy is given. In addition, effectiveness of the strategy is demonstrated by simulation.
In this paper, we study the shared path protection (SPP) problem in wavelength division multiplexing (WDM) optical networks, and propose a novel SPP algorithm with differentiated reliability (DiR) called SPP-DiR. Differing from previous work, SPP-DiR algorithm effectively adapts to the diversity demands of customer requests and has higher resource utilization than SPP algorithm. Therefore, SPP-DiR...
This paper targets to propose an efficient reliability evaluation and prediction scheme based on concepts of improvable information and communication networks (ICN). In this order of ideas, several black-box models of reliability growth are proposed in the literature. Remarking that a wide variety of methods, in the literature, suppose restrictive assumptions on the manner to discover ICN failures,...
A mutually anonymous service hides the identity of a client from the service provider and vice-versa. Providing mutual anonymity usually requires a large number of participants. While peer-to-peer (P2P) networks are capable of recruiting a large number of participants, reliable anonymous communication in these architectures, with low bandwidth usage, still needs further investigation. This paper presents...
We examine the performance of peer-to-peer (P2P) media streaming using multiple description coding (MDC) and compare it with that of a content delivery network (CDN). In both approaches, multiple servers simultaneously serve one requesting client with complementary descriptions. This approach improves reliability and decreases the data rate a server has to provide. We have implemented both approaches...
One of the important parameters characterizing the quality of computer networks is the network's reliability with respect to failures of the communication links and nodes. This paper investigated the reliability of star networks. The star topology is used in centralized computer networks. In centralized computer networks all communication must take place through some central computer. So, as measures...
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