Optimal data transmission and channel code rate allocation in multi-path wireless networks

Ronasi K, Mohsenian-Rad AH, Wong VW, Gopalakrishnan S, Schober R (2011)

Publication Type: Conference contribution

Publication year: 2011

Journal

Conference Record - International Conference on Communications Institute of Electrical and Electronics Engineers

Conference Proceedings Title: IEEE International Conference on Communications

Event location: Kyoto JP

ISBN: 9781612842332

DOI: 10.1109/icc.2011.5962917

Abstract

Wireless links are often unreliable and prone to transmission error due to varying channel conditions. These can degrade the performance in wireless networks, particularly for applications with tight quality-of-service requirements. A common remedy is to use channel coding where the transmitter node adds redundant bits to the transmitted packets in order to reduce the error probability at the receiver. However, this per-link solution can compromise the link data rate, leading to undesired end-to-end performance. In this paper, we show that this latter shortcoming can be mitigated if the end-to-end transmission rates and channel code rates are selected properly over multiple routing paths. We formulate the joint channel coding and end-to-end data rate allocation problem in multipath wireless networks as a network throughput maximization problem, which is non-convex. We tackle the non-convexity by using function approximation and iterative techniques from signomial programming. Simulation results confirm that by using channel coding jointly with multi-path routing, the end-to-end network performance can be improved significantly. © 2011 IEEE.

Authors with CRIS profile

Robert Schober

Involved external institutions

University of British Columbia CA Canada (CA) Texas Tech University (TTU) US United States (USA) (US)

How to cite

APA:

Ronasi, K., Mohsenian-Rad, A.H., Wong, V.W., Gopalakrishnan, S., & Schober, R. (2011). Optimal data transmission and channel code rate allocation in multi-path wireless networks. In IEEE International Conference on Communications. Kyoto, JP.

MLA:

Ronasi, Keivan, et al. "Optimal data transmission and channel code rate allocation in multi-path wireless networks." Proceedings of the 2011 IEEE International Conference on Communications, ICC 2011, Kyoto 2011.

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