Distributed Localization Protocol for Routing in a Noisy Wireless Sensor Network

Karel Heurtefeux, Fabrice Valois
2009 2009 Fifth International Conference on Mobile Ad-hoc and Sensor Networks  
To be efficient, routing protocols in wireless sensor networks suppose to take into account local interactions, noise and collisions. In this work, we propose a routing protocol suitable for noisy environments. Using the Qualitative Localization Algorithm (QLoP [13]) in order to select sensors with a better signal-to-noise ratio, we build a logical topology on which we apply a routing protocol. We show that Received Signal Strength Indicator (RSSI) is not a good metric to evaluate proximity. In
more » ... luate proximity. In order to provide a better proximity metric, we introduce the Qualitative Localization Protocol: QLoP. QloP does not use any anchor or dedicated hardware like GPS. Each node builds a Qualitative Distance according to the 2-hop neighborhood information. Thus, this algorithm allows to determine coarsely the proximity of the neighbors which are classified as very close, close or far. We highlight the routing performances in a noisy environment and compare it to a classical routing protocol on a flat topology. Delivery rate, throughput and average distance reachable in those extremes conditions are appreciably enhanced.
doi:10.1109/msn.2009.83 dblp:conf/msn/HeurtefeuxV09 fatcat:3zljimpe65fn3os5ctiromydeu