WPR: Um Protocolo de Roteamento Pró-ativo Adaptado às Redes em Malha Sem Fio

Miguel Elias M. CampistaLuís Henrique M. K. CostaOtto Carlos M. B. Duarte

This work introduces the WPR (Wireless-mesh-network Proactive Routing) protocol for wireless mesh networks. WPR is a proactive protocol which uses link states to avoid initial latency during route discovery procedu- res. Unlike available protocols in the literature, such as OLSR (Optimized Link State Routing), WPR deploys a controlled-flooding algorithm adapted to wireless mesh networks peculiarities. The main goal of this algorithm is to reduce the routing overhead taking into account characteristics like traffic convergence towards the gateways and the typical stationary topology of backbone routers. Besides, WPR avoids redundant messages using the AMPR (Adapted MultiPoint Relay) set. The AMPR set modifies the MPR (MultiPoint Relay) set of OLSR to be used with the WPR controlled-flooding algorithm. Our results show that compared to OLSR, the throughput gains reach up to 50% using web traffic. In addition, using a mix of web traffic and internal backbone traffic, the throughput gains reach up to 24%.

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