CAPACITY ANALYSIS FOR COOPERATIVE MIMO SYSTEMS UNDER INDIVIDUAL PEAK-POWER CONSTRAINTS

摘要：

The paper considers capacity maximization problem in cooperative multiple-input-multipleoutput (Co-MIMO) systems under individual peakpower constraints (IPC). Existing literatures mostly address the capacity issue on a total peakpower constraint (TPC) basis, which assumes all transmit base stations (BSs) to be restricted to a fix peak power. However in Co-MIMO systems, each cooperative BS is confined to its own power amplifier, which makes IPC a more realistic condition. The paper analyzes the capacity under IPC in a general Co-MIMO system, where several BSs cooperate to serve one user. Following that, a closed-form expression to maximize system capacity for a special case, where only two BSs serve one user, is derived. Simulation results show that our proposed capacity-maximization solution outperforms tradition TPC-based uniform power allocation and achieves an elegant tradeoff between maximal system capacity and reality significance.

关键词： capacity cooperative MIMO individual peak-power constraints

作者: Yueqiao Xu Qimei Cui Xiaofeng Tao

作者单位: Wireless Technology Innovation InstituteKey Lab of Universal Wireless Communication Ministry of Educ Wireless Technology Innovation Institute Key Lab of Universal Wireless Communication Ministry of Edu

会议类型: 国际会议

会议名称: 2010 3rd IEEE International Conference on Broadband Network & Multimedia Technology(2010年第三届IEEE宽带网络与多媒体国际会议 IC-BNMT 2010)

会议地点: 北京

会议语种:英文

页码: 268-272

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）