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Weighted Sum Rate-Based Coordinated Beamforming in Multi-Cell Multicast Networks | IEEE Journals & Magazine | IEEE Xplore

Weighted Sum Rate-Based Coordinated Beamforming in Multi-Cell Multicast Networks


Abstract:

In this letter, we investigate the coordinated beamforming design with the goal of maximizing the weighted sum rate in multi-cell multicast networks. This problem is NP-h...Show More

Abstract:

In this letter, we investigate the coordinated beamforming design with the goal of maximizing the weighted sum rate in multi-cell multicast networks. This problem is NP-hard, since the multicast rate maximization problem in single-cell networks is NP-hard. We propose a low-complexity, provably convergent iterative algorithm, where in each iteration, the original problem can be expressed as a second-order cone programming (SOCP) by using convex approximation. Simulation results show that the proposed iterative SOCP algorithm yields a better performance gain than existing algorithms.
Published in: IEEE Communications Letters ( Volume: 20, Issue: 8, August 2016)
Page(s): 1567 - 1570
Date of Publication: 19 May 2016

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