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In this paper, the authors compare and analyze performance of five quality link metrics for Wireless Multi-hop Networks (WMhNs). The metrics are based on loss probability measurements; ETX, ETT, InvETX, ML and MD, in a distance vector routing protocol; DSDV. Among these selected metrics, they have implemented ML, MD, InvETX and ETT in DSDV which are previously implemented with different protocols; ML, MD, InvETX are implemented with OLSR, while ETT is implemented in MR-LQSR. For their comparison, they have selected Throughput, Normalized Routing Load (NRL) and End-To-End Delay (E2ED) as performance parameters. Finally, they deduce that InvETXdue to low computational burden and link asymmetry measurement outperforms among all metrics.
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