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In the tactical Internet, inter-domain links consist mostly of unreliable and low bandwidth wireless links. To enable seamless routing across different Autonomous Systems (ASes), we propose an inter-domain Traffic Engineering (TE) scheme to reroute traffic when congestion occurs. There are two components for the TE scheme. First, a Traffic Splitting (TS) scheme is used for load balancing among parallel...
We present a multiple-metric approach in order to improve routing in wireless mesh networks (WMNs). It is based on the proactive optimized link state routing (OLSR) protocol to deal with applications with high quality of service (QoS) demands. Since routing with multiple metrics is an NP-complete problem, we use the analytic hierarchy process (AHP) and pruning techniques to perform such routing. The...
COPE appears as the first wireless network coding approach which can improve the throughput of Wireless Mesh Networks (WMNs). But the established routes in COPE may result in fairly limited coding opportunities and low throughput gain. Although excessive intersections of flows can bring forth more coding opportunities, they may make some nodes overloaded, and decrease the throughput. Furthermore,...
Back-pressure based algorithms based on the algorithm by Tassiulas and Ephremides have recently received much attention for jointly routing and scheduling over multi-hop wireless networks. However a significant weakness of this approach has been in routing, because the traditional back-pressure algorithm explores and exploits all feasible paths between each source and destination. While this extensive...
IEEE P1900.4 is an emerging standard for optimized radio resource utilization where cognitive radio technologies are used for efficient spectrum utilization. In this paper, we design and implement a cognitive wireless network system based on open documents of IEEE P1900.4, and evaluate its performance using UDP streaming and HTTP download. Our experiments show interesting results that total network...
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