W-function Solution to MBER Based Power Allocation for MIMO Eigenmode Transmission

摘要：

In multiple-input and multiple-output (MIMO) Eigenmode transmission systems, problem of minimizing bit error rate (MBER) based optimal power allocation does not have a simple closed-form solution. There are two existing methods:general purpose methods, i.e. interior point methods, and Q-function Chernoff approximative power allocation method. The paper proposes a novel solution to the MBER based optimal power allocation. A closed-form solution is obtained by utilizing Lambert W-function, and the optimal power allocation can be obtained by optimal algorithm for the W-function. Numerical simulations show that, the proposed W-function power allocation can achieve better performances than Q-function Chernoff approximative power allocation method and equal power allocation method.

作者: Yunhui Liu Yuhang Yang

作者单位: Department of Electronics Engineering,Shanghai Jiao Tong University,Shanghai, 200030 P.R.China Department of Electronics Engineering, Shanghai Jiao Tong University, Shanghai, 200030 P.R.China

会议类型: 国际会议

会议名称: 2005年无线通信、网络和移动计算国际会议

会议地点: 武汉

会议语种:英文

页码: 77-80

在线出版日期: 2005-09-23（万方平台首次上网日期，不代表论文的发表时间）