Adaptive Power Optimization for Space-time Coded MIMO Systems

摘要：

An optimized power allocation scheme is proposed to compensate for the diversity loss and decrease the error propagation due to the group interference suppression and cancellation (G-ISC) algorithm in multilayered space-time trellis codes (ML-STTC). In the proposed scheme, with high probabilities, the signals in the first group can be correctly detected and their interference to other groups can be cancelled perfectly, which in turn facilitates the detection of the signals in other groups. Simulation results reveal the optimized scheme is adaptive to signal-to-noise ratio (SNR) and can achieve significant performance improvement without adding much delay and complexity.

关键词： multilayered space-time trellis codes space-time trellis code group interference suppression and cancellation power optimization

作者: Changcai Han Dongfeng Yuan

作者单位: School of Information Science and Engineering Shandong University Jinan, 250100 P.R.China School of Information Science and Engineering Shandong University Jinan, 250100 P.R.China;State Key

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: 95-98

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）