太赫兹科学与电子信息学报Issue(5)：688-691,4.DOI:10.11805/TKYDA201405.0688
基于门限控制的新型矢量扰动预编码方法
A new approach for Vector Perturbation based on threshold controlling
摘要
Abstract
Taking the Multiple User Multiple Input and Single Output(MU-MISO) downlink system as an example, the influences of the condition numbers of channel matrix on the algorithm complexity and system performance are analyzed, while the Vector Perturbation(VP) is employed at the transmitter. It is found by Monte Carlo simulation that when the condition number is small, inappropriate perturbation may even increase the signal transmission power, leading to unnecessary waste; on the other side, when the condition number is large, Lattice Reduction(LR) method can be used to reduce the complexity of searching perturbation vectors. On this basis, a novel VP method based on threshold controlling is proposed. It is proved that computational complexity of the proposed method can be significantly reduced at the expense of minimal performance loss.关键词
多用户多输入单输出系统/矢量扰动预编码/门限控制Key words
Multiple User Multiple Input and Single Output system/Vector Perturbation/threshold controlling分类
信息技术与安全科学引用本文复制引用
周智勋,朱登魁,郁光辉..基于门限控制的新型矢量扰动预编码方法[J].太赫兹科学与电子信息学报,2014,(5):688-691,4.基金项目
国家自然科学基金资助项目(41171317)；国家自然科学基金重点资助项目(61132008)；清华大学自主研究基金资助项目 （41171317）
