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Network coding has been proved as an effective way to enhance the throughput of the multihop wireless ad hoc networks in both unicast and multicast traffics. However, in a random network topology with non-coding-aware routing protocols, the performance enhancement may be limited because the packet routing scheme does not take advantage of the possibility of network coding. In this paper, we propose...
In this paper we analyze performance of network coding focusing on two specific network coding schemes: XOR and random linear network coding. We have simulated different topologies and traffic patterns in order to provide better understanding of network coding behavior and its possible bottlenecks. As a part of our performance evaluation we address computational complexity of coding and decoding operations...
The broadcast nature of wireless transmission makes network coding possible in wireless networks. The state-of-the-art algorithm, referred to as COPE, utilizes opportunistic listening to encode packets from different unicast sessions. In theory, the network coding gain of COPE is only dependent on the network topology. In practice, it is also dependent on the traffic pattern and MAC layer scheduling...
Network coding has gained significant attention in recent years as a means to improve throughput, especially in multicast scenarios. These capacity gains are achieved by combining packets algebraically at various points in the network, thereby alleviating local congestion at the nodes. The benefits of network coding are greatest when the network is heavily utilized or, equivalently, when the sources...
Recent research has proven that network coding has great potential to improve network throughput in wireless networks. To fully exploit the performance gain brought by network coding, coding-aware routing has been studied to proactively change route of flows for creating more coding opportunities. However, in today's multi-rate wireless networks, coding may not be a wise decision as the lowest rate...
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