Coordinated max-min SIR optimization in multicell downlink - Duality and algorithm

Desmond W.H. Cai, Tony Q.S. Quek, Chee Wei Tan

研究成果: Conference contribution

17 引文 斯高帕斯(Scopus)

摘要

Typical formulations of max-min weighted SIR problems involve either a total power constraint or individual power constraints. These formulations are unable to handle the complexities in multicell networks where each base station can be subject to its own sum power constraint. This paper considers the max-min weighted SIR problem subject to multiple weighted-sum power constraints, where the weights can represent relative power costs of serving different users. First, we derive the uplink-downlink duality principle by applying Lagrange duality to the single-constraint problem. Next, we apply nonlinear Perron-Frobenius theory to derive a closed-form solution for the multiple-constraint problem. Then, by exploiting the structure of the closed-form solution, we relate the multiple-constraint problem with its single-constraint subproblems and establish the dual uplink problem. Finally, we further apply nonlinear Perron-Frobenius theory to derive an algorithm which converges geometrically fast to the optimal solution.

原文English
主出版物標題2011 IEEE International Conference on Communications, ICC 2011
DOIs
出版狀態Published - 2011
事件2011 IEEE International Conference on Communications, ICC 2011 - Kyoto, Japan
持續時間: 2011 六月 52011 六月 9

出版系列

名字IEEE International Conference on Communications
ISSN(列印)0536-1486

Other

Other2011 IEEE International Conference on Communications, ICC 2011
國家/地區Japan
城市Kyoto
期間11-06-0511-06-09

All Science Journal Classification (ASJC) codes

  • 電腦網路與通信
  • 電氣與電子工程

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