An Iterative Re-Weighted Minimization Framework for Resource Allocation in the Single-Cell Relay-Enhanced OFDMA Network

Kumar, Chethan A and Murthy, Chandra R (2016) An Iterative Re-Weighted Minimization Framework for Resource Allocation in the Single-Cell Relay-Enhanced OFDMA Network. In: 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), JUL 03-06, 2016, Edinburgh, ENGLAND.

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Abstract

We consider the joint path, subcarrier and power allocation problem for a multi-user orthogonal frequency division multiple access (OFDMA) relay-enhanced cellular (REC) network. The goal is to maximize a system utility function subject to a total transmit power constraint and the OFDMA resolver allocation constraint. Since the problem is of combinatorial complexity, we propose an iterative re-weighted minimization (IRM) framework based on reformulating the combinatorial OFDMA constraint as an equivalent continuous optimization problem. The result is a fast, globally convergent algorithm for solving the resource allocation problem in the single cell OFDMA REC network. We demonstrate the efficacy of the proposed approach and compare its performance with existing schemes through Monte Carlo simulations.

Item Type:	Conference Poster
Series.:	IEEE International Workshop on Signal Processing Advances in Wireless Communications
Additional Information:	Copy right for this article belongs to the IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	03 Dec 2016 10:19
Last Modified:	03 Dec 2016 10:19
URI:	http://eprints.iisc.ac.in/id/eprint/55431

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