Incorporating Inter-flow Network Coding into Intra-flow Network Coding Based on Opportunistic Routing
Date Issued
2010
Date
2010
Author(s)
Chou, Yi-Chun
Abstract
Transmissions can generally be overheard by unintended nodes due to the broadcast nature of wireless environment. Much of recent research has been proposed that taking the advantage of this nature to improve the throughput of wireless mesh networks (WMNs). Two of methods that efficiently achieve performance benefits are opportunistic routing (OR) and inter-flow network coding (NC). The state-of-the-art network coding based opportunistic routing protocol, MORE , uses intra-flow network coding to avoid redundant transmissions caused by overhearing and achieves higher throughput than ExOR .
In this work, we try to combine inter-flow network coding into intra-flow network coding based opportunistic routing. We want to exploits both methods to reduce the number of transmissions and achieve higher throughput than using either method alone.
By incorporating these two techniques, the simulation results show that our work can outperform MORE by 20~30% throughput improvement and reduce in average 20% the number of transmissions needed for sending a batch of packets.
Subjects
Network coding
Opportunistic routing
Wireless network
Type
thesis
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