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Selective Link Cost Alteration in Reservation-Based Multi-Hop Wireless Mesh Networks

Authors:
Christian Köbel
Walter Baluja García
Joachim Habermann

Keywords: Wireless Mesh Network; WirelessLAN; Multi-Hop; Multi-Path; Reservation-Based; Policy-Based; OLSR

Abstract:
Link state protocol-driven wireless mesh networks are known for their flexible and highly scalable structure, due to a high degree of individuality, in terms of routing table generation in each connected node. QoS-focused research allows these nodes now to make accurate next-hop decisions based on QoS-sensitive routing metrics. This development enables significantly improved QoS-performance on the network layer. To further adapt link cost calculation to QoS-demands posed by digital media services on higher layers, we propose the Selective Link Cost Alteration (SLCA) scheme, which includes resource reservation demands into the process of neighbor link evaluation, in a distributed fashion. SLCA’s goal is to avoid that best effort packets competing with a protection-worthy QoS stream, therefore routing conditions are altered in order to keep the best available path free for QoS-related packets.

Pages: 153 to 158

Copyright: Copyright (c) IARIA, 2012

Publication date: February 29, 2012

Published in: conference

ISSN: 2308-4413

ISBN: 978-1-61208-183-0

Location: Saint Gilles, Reunion

Dates: from February 29, 2012 to March 5, 2012