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Mobility Aware Routing for Multihomed Wireless Networks Under Interference Constraints

Authors:
Preetha Thulasiraman

Keywords: interference; hidden markov model; SINR routing; mobility prediction

Abstract:
In this paper, the problem of interference aware routing using local mobility management (LMM) is addressed in multihomed wireless networks in which multiple fixed relay nodes are deployed to locally maintain and deliver mobility information collected from the surrounding mobile users. We present a new interference aware routing algorithm that uses the signal to interference noise ratio (SINR) value as the routing metric. The LMM model, based on the Hidden Markov Model (HMM), is implemented to calculate the SINR value of a specific link at particular time instances. This information is used to proactively perform route construction based on least interference. We minimize the total cost of routing as a cost function of SINR while guaranteeing that the load on each link does not exceed its capacity. We compare our LMM and SINR based routing algorithms with conventional counterparts in the literature and show that our algorithms have better prediction accuracy while reinforcing routing paths with high link quality and low latency.

Pages: 57 to 62

Copyright: Copyright (c) IARIA, 2011

Publication date: November 20, 2011

Published in: conference

ISSN: 2326-9383

ISBN: 978-1-61208-174-8

Location: Lisbon, Portugal

Dates: from November 20, 2011 to November 25, 2011