Lattice routing: A 4D routing scheme for multiradio multichannel ad hoc networks

Authors:
Sandeep Kakumanu;Stephan Eidenbenz;Raghupathy Sivakumar
Affiliations:
Georgia Institute of Technology, 5174 Centergy One, Atlanta, GA 30308, United States;Information Sciences (CCS-3), Los Alamos National Laboratory, Los Alamos, NM-87545, United States;Georgia Institute of Technology, 5174 Centergy One, Atlanta, GA 30308, United States
Venue:
Ad Hoc Networks
Year:
2011

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Abstract

An efficient channel assignment strategy ensures capacity maximization in a multiradio, multichannel ad hoc network. Existing mechanisms either use a static channel assignment or a centralized process intensive system that assigns channels to individual nodes. These are not effective in a dynamic environment with multiple flows that are active at different time instants. The protocol proposed in this work (Lattice routing) manages channels of the radios for the different nodes in the network using information about current channel conditions and adapts itself to varying traffic patterns in order to efficiently use the multiple channels. Further the protocol uses multipathing, a key mechanism that is found to alleviate bottlenecks present in single path routes in such an environment. Results indicate that Lattice routing consistently outperforms it closest competitor ((MCR) Kyasanur and Vaidya (2006) [1]) across a large number of experiments.