A network coding-aware routing mechanism for time-sensitive data delivery in multi-hop wireless networks

Minho Jeong, Sanghyun Ahn

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The network coding mechanism has attracted much attention because of its advantage of enhanced network throughput which is a desirable characteristic especially in a multi-hop wireless network with limited link capacity such as the device-to-device (D2D) communication network of 5G. COPE proposes to use the XORbased network coding in the two-hop wireless network topology. For multi-hop wireless networks, the Distributed Coding-Aware Routing (DCAR) mechanism was proposed, in which the coding conditions for two flows intersecting at an intermediate node are defined and the routing metric to improve the coding opportunity by preferring those routes with longer queues is designed. Because the routes with longer queues may increase the delay, DCAR is inefficient in delivering real-time multimedia traffic flows. In this paper, we propose a network coding-aware routing protocol for multi-hop wireless networks that enhances DCAR by considering traffic load distribution and link quality. From this, we can achieve higher network throughput and lower end-to-end delay at the same time for the proper delivery of time-sensitive data flow. The Qualnet-based simulation results show that our proposed scheme outperforms DCAR in terms of throughput and delay.

Original languageEnglish
Pages (from-to)1544-1553
Number of pages10
JournalJournal of Information Processing Systems
Volume13
Issue number6
DOIs
StatePublished - 2017

Keywords

  • Coding-aware routing
  • Link quality
  • Multi-Hop Wireless Network
  • Network coding
  • Traffic load distribution

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