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INFOCOM
2011
IEEE

Optimal channel assignment and power allocation for dual-hop multi-channel multi-user relaying

10 years 3 months ago
Optimal channel assignment and power allocation for dual-hop multi-channel multi-user relaying
Abstract—We consider the problem of jointly optimizing channel pairing, channel-user assignment, and power allocation in a single-relay multiple-access system. The optimization objective is to maximize the weighted sum-rate under total and individual power constraints on the transmitters. By observing the special structure of a three-dimensional assignment problem derived from the original problem, we propose a polynomial-time algorithm based on continuity relaxation and dual minimization. The proposed method is shown to be optimal for all relaying strategies that give a concave rate function in terms of power constraints.
Mahdi Hajiaghayi, Min Dong, Ben Liang
Added 30 Aug 2011
Updated 30 Aug 2011
Type Journal
Year 2011
Where INFOCOM
Authors Mahdi Hajiaghayi, Min Dong, Ben Liang
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