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IEICE TRANSACTIONS on Communications

Broadcasting with Randomized Network Coding in Dense Wireless Ad Hoc Networks

Takahiro MATSUDA, Taku NOGUCHI, Tetsuya TAKINE

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Summary :

In this paper, we consider the broadcast storm problem in dense wireless ad hoc networks where interference among densely populated wireless nodes causes significant packet loss. To resolve the problem, we apply randomized network coding (RNC) to the networks. RNC is a completely different approach from existing techniques to resolve the problem, and it reduces the number of outstanding packets in the networks by encoding several packets into a single packet. RNC is a kind of linear network coding, and it is suited to wireless ad hoc networks because it can be implemented in a completely distributed manner. We describe a procedure for implementing the wireless ad hoc broadcasting with RNC. Further, with several simulation scenarios, we provide some insights on the relationship between the system parameters and performance and find that there is the optimal length of coding vectors for RNC in terms of packet loss probability. We also show a guideline for the parameter setting to resolve the broadcast storm problem successfully.

Publication
IEICE TRANSACTIONS on Communications Vol.E91-B No.10 pp.3216-3225
Publication Date
2008/10/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.10.3216
Type of Manuscript
PAPER
Category
Network

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