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Utility Optimal Coding for Packet Transmission over Wireless Networks – Part I: Networks of Binary Symmetric Channels

Premkumar, K. and Chen, Xiaomin and Leith, Douglas J. (2011) Utility Optimal Coding for Packet Transmission over Wireless Networks – Part I: Networks of Binary Symmetric Channels. Working Paper. Hamilton Institute. (Unpublished)

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Abstract

We consider multi–hop networks comprising Binary Symmetric Channels (BSCs). The network carries unicast flows for multiple users. The utility of the network is the sum of the utilities of the flows, where the utility of each flow is a concave function of its throughput. Given that the network capacity is shared by the flows, there is a contention for network resources like coding rate (at the physical layer), scheduling time (at the MAC layer), etc., among the flows. We propose a proportional fair transmission scheme that maximises the sum utility of flow throughputs subject to the rate and the scheduling constraints. This is achieved by jointly optimising the packet coding rates of all the flows through the network.

Item Type: Monograph (Working Paper)
Additional Information: Paper submitted to Forty-Ninth Annual Allerton Conference on Communication, Control, and Computing, Monticello, IL, USA. This work is supported by Science Foundation Ireland under Grant No. 07/IN.1/I901.
Keywords: Binary symmetric channels; code rate selection; cross–layer optimisation; network utility maximisation; scheduling;
Subjects: Science & Engineering > Hamilton Institute
Item ID: 3629
Depositing User: Karumbu Premkumar
Date Deposited: 02 May 2012 15:34
Publisher: Hamilton Institute
Refereed: No
URI:

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