Investigating quality routing link metrics in Wireless Multi-hop Networks


In this paper, we propose a new Quality Link Metric (QLM), “Inverse Expected Transmission Count (InvETX),” in Optimized Link State Routing (OLSR) protocol. Then, we compare performance of three existing QLMs which are based on loss probability measurements: Expected Transmission Count (ETX), Minimum Delay (MD), and Minimum Loss (ML) in Static Wireless Multi-hop Networks (SWMhNs). A novel contribution of this paper is enhancement in conventional OLSR to achieve high efficiency in terms of optimized routing load and routing latency. For this purpose, first we present a mathematical framework, and then to validate this frame work, we select three performance parameters to simulate default and enhanced versions of OLSR. The three chosen performance parameters are throughput, Normalized Routing Load, and End-to-End Delay. From the simulation results, we conclude that adjusting the frequencies of topological information exchange results in high efficiency.

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Javaid, N., Bibi, A., Javaid, A. et al. Investigating quality routing link metrics in Wireless Multi-hop Networks. Ann. Telecommun. 69, 209–217 (2014).

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  • Routing link metric
  • ETX
  • Inverse ETX
  • Minimum Delay
  • Minimum Loss
  • Wireless Multi-hop Networks