A batched network coding scheme for wireless networks |
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Authors: | Xiaoyan Zhu Hao Yue Yuguang Fang Yumin Wang |
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Affiliation: | (1) National Key Laboratory of Integrated Services Networks, Xidian University, 710071 Xi’an, China;(2) Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA |
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Abstract: | Several wireless network coding schemes apply either inter-flow traffic or intra-flow traffic, but not both. This paper proposes a novel batched network coding scheme to deal with both inter-flow and intra-flow traffics, which attempts to combine the advantages of both network coding approaches. Based on the idea in the well-known network coding scheme COPE, our batched network coding scheme allows each node to make use of intra-flow network coding technique to improve the transmission reliability in a lossy environment, consequently obtaining higher throughput. Moreover, we also utilize the multiple-path transmitting scheme to further increase the throughput of wireless networks with low link delivery probability. Finally, using a simplified network topology model, we show theoretically that our proposed scheme outperforms COPE significantly, particularly when the link quality is low. |
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