OLSR-aware distributed channel access scheduling for wireless mesh networks

Authors:
Miray Kas;Ibrahim Korpeoglu;Ezhan Karasan
Affiliations:
Dept. of Computer Engineering, Bilkent University, Ankara, Turkey;Dept. of Computer Engineering, Bilkent University, Ankara, Turkey;Dept. of Electrical & Electronics Engineering, Bilkent University, Ankara, Turkey
Venue:
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Year:
2009

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Abstract

In this paper, we present OA-TDMA (OLSR-Aware TDMA), a TDMA based cross-layer channel access scheduling scheme which uses the information collected by the OLSR routing protocol. In OA-TDMA, each node makes decisions in a distributed manner with no central control, using the local information disseminated by the OLSR protocol. The distinctive feature of the OA-TDMA protocol lies in its weighting scheme where OA-TDMA approximates the traffic passing through each node by using the local topology information collected by OLSR. Our simulations on ns-2 confirm the significant performance improvement achieved by the combination of OLSR and OA-TDMA over other scheduling schemes considered in this paper.