Authors: Li Han; Huan-yan Qian
Addresses: School of Computer Science & Technology, Anhui University, Hefei, 230039, China ' School of Computer Science & Engineering, Nanjing University of Science & Technology, Nanjing, 210094, China
Abstract: In this paper, the problem of multi-flow opportunistic routing in lossy wireless mesh network is considered. A heuristic algorithm, named MulSrc, is proposed. Building on backpressure scheduling and intra-flow network coding, MulSrc eliminates coordination between node as well as improves the fairness in rate allocation between different flows. To adjust the sources' upper layer rate to network condition, a TCP-like rate control mechanism is adopted, which makes MulSrc suitable for delay-sensitive but loss-tolerant applications, such as adaptive audio/video streaming. Simulation results demonstrate that MulSrc outperforms both a single-path backpressure routing algorithm that uses jointly optimal routing and flow-control approaches and the classical opportunistic routing algorithm MORE.
Keywords: network coding; multi flow; scheduling; opportunistic routing; multi-hop.
International Journal of Sensor Networks, 2017 Vol.24 No.2, pp.75 - 82
Received: 29 Sep 2016
Accepted: 30 Sep 2016
Published online: 19 Jun 2017 *