Premkumar, K. and Chen, Xiaomin and Leith, Douglas J.
Utility Optimal Coding for Packet Transmission
over Wireless Networks – Part I:
Networks of Binary Symmetric Channels.
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.
||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.
||Binary symmetric channels; code rate selection;
cross–layer optimisation; network utility maximisation; scheduling;
||Science & Engineering > Hamilton Institute
||02 May 2012 15:34
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