摘要
针对LLL格基约减算法应用在MIMO系统检测中计算复杂度高,理论和实验分析了LLL算法中影响列交换条件的参数δ对计算复杂度和正交缺陷的影响,同时结合ZF和VBLAST检测技术实验分析了参数δ在MIMO信号检测系统中对误码率性能的影响。数值结果与分析表明:在MIMO检测系统中LLL算法参数δ=0.75为最佳值。
In order to solve the problem of high computation complexity of LLL algorithm in MIMO detection,the LLL algorithm's parameter δ which influences the column exchange process is analyzed theoretically and experimentally.In addition,the influence of δ on the computation complexity,orthogonal defect and BER(Bit-Error Rate) performance in MIMO detection are also analyzed.Numerical results show that the LLL algorithm parameter δ=0.75 is the best value in MIMO detection system.
出处
《大连民族学院学报》
CAS
2011年第1期19-23,共5页
Journal of Dalian Nationalities University