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Published May 2, 2008 | Published
Book Section - Chapter Open

Energy Efficient Opportunistic Network Coding for Wireless Networks

Abstract

We consider energy efficient network coding design in wireless networks with multiple unicast sessions. Our approach decomposes multiple unicast sessions into a superposition of multicast and unicast sessions, with coding occurring only within each session. We give an optimization approach that is more general than the existing poison-remedy optimization formulation. For the case of wireless, we consider XOR coding and give an achievable rate region for a primary interference model. To simplify network operation, we give an oblivious backpressure algorithm which does not optimize overhearing of transmissions, and a practical protocol called COPR based on the oblivious backpressure algorithm. Simulation experiments show that COPR largely reduces network power consumption over existing algorithms.

Additional Information

© 2008 IEEE. This work has been supported in part by DARPA grant N66001-06-C-2020, Caltech's Lee Center for Advanced Networking and a gift from Microsoft Research.

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Published - Cui2008p8543Ieee_Infocom_2009_-_Ieee_Conference_On_Computer_Communications_Vols_1-5.pdf

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Cui2008p8543Ieee_Infocom_2009_-_Ieee_Conference_On_Computer_Communications_Vols_1-5.pdf

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Created:
August 19, 2023
Modified:
January 12, 2024