受比吸收率约束的多天线传输方案  

Multi-antenna Transmission Scheme Based on SAR Constraint

作　　者：徐旭东[1,2] 吴尚[1,2] 梁学俊 

机构地区：[1]苏州市产品质量监督检验所,江苏苏州215104 [2]国家信息网络产品质量监督检验中心,江苏苏州215104

出　　处：《移动通信》2014年第24期72-75,81,共5页Mobile Communications

基　　金：国家质检总局2013年度科技计划项目"新一代无线通信产品电磁辐射的比吸收率测试"(2013QK198)

摘　　要：以比吸收率为约束条件、设备总速率最大化为目标,提出一种适用于多天线上行传输的预编码设计方案。该方案在提高频谱效率的同时,兼顾了比吸收率对传输功率的影响,从而将比吸收率约束提前到产品设计和优化之中,减少了后期对比吸收率的评估依赖。通过仿真结果表明,这种算法不仅保证了比吸收率在最大允许范围内,而且还大大提升了设备性能。Taking specific absorption rate（SAR） as constraint and total rate maximization as object, a precoding scheme suitable for MIMO uplink transmission is proposed in this paper. As the proposed scheme considers both the enhancement of spectrum effi ciency and the impact of SAR on transmission power, it reduces the dependence on SAR evaluation mainly because SAR is put in product design and optimization in advance. Simulation results reveal that the proposed scheme not only guarantees SAR within the maximum range, but also greatly improve device performance.

关 键 词：MIMO 比吸收率 预编码 

分 类 号：TP914[自动化与计算机技术]