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Near-Optimal Distributed Power Control for ARQ Based Multihop Links with Decoding Costs

Sharma, Mohit K and Murthy, Chandra R (2017) Near-Optimal Distributed Power Control for ARQ Based Multihop Links with Decoding Costs. In: IEEE International Conference on Communications (ICC), MAY 21-25, 2017, Paris, FRANCE.

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Official URL: http://dx.doi.org/10.1109/ICC.2017.7996884

Abstract

In this paper, we consider automatic repeat request based multihop communication between a source and a destination. We present the design of near-optimal power control policies which minimize the packet drop probability (PDP), when the energy cost to receive and decode a packet is non-negligible. The design problem is a nonconvex mixed integer nonlinear program, which, in general, is NP-hard to solve. We transform the problem into a complementary geometric program (CGP), and solve the CGP using a series of GP approximations. Simulations show that for slow (fast) fading channels, the obtained policy offers approximately one (two) orders of magnitude better performance compared to a conventional equal power policy. In addition, the results quantify the relative impact of the available power at the nodes and the effect of decoding cost on the PDP.

Item Type: Conference Proceedings
Additional Information: Copy right for the article belong to IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Depositing User: Id for Latest eprints
Date Deposited: 14 Mar 2018 17:35
Last Modified: 14 Mar 2018 17:35
URI: http://eprints.iisc.ac.in/id/eprint/59200

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