Label Switched Multi-path Forwarding in Wireless Ad-Hoc Networks

Authors:
Hang Liu;Dipankar Raychaudhuri
Affiliations:
Rutgers University;Rutgers University
Venue:
PERCOMW '05 Proceedings of the Third IEEE International Conference on Pervasive Computing and Communications Workshops
Year:
2005

Citing 2
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Ad Hoc Networks

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Abstract

In this paper, we present an architectural view of label switched wireless ad hoc networks, in which each forwarding node is a wireless label switching router. Particularly we propose the Wireless Ad-hoc Label Switching (WALS) protocol. The protocol can establish locally disjoint Label Switched Multi-Path (LSMP) in ad hoc networks with no requirement for signaling. The 802.11 data frame header is extended to carry label and flow information for multi-path setup and packet forwarding. Data packets are simultaneously forwarded over multiple locally disjoint paths according to the attached label. It is possible that a node receives multiple copies of the same packet from different upstream nodes in multi-path forwarding. The techniques to detect and suppress such duplicates are discussed.