太原理工大学学报2017，Vol.48Issue(2)：200-205,6.DOI:10.16355/j.cnki.issn1007-9432tyut.2017.02.011
单天线解空分复用算法的实现与仿真
Realization and Simulation of Decoding Space Division Multiplexing Algorithm by Using Antenna
刘建霞 1回海生2
作者信息
- 1. 太原理工大学信息工程学院,太原030024
- 2. 广州慧睿思通信息科技有限公司,广州511400
- 折叠
摘要
Abstract
In order to decode dual-antenna space division multiplexing data of Long Term Evolution(LTE) transmission mode 3 (TM3) by a single-antenna LTE user equipment,a reference constellation which can be used for calculating the log-likelihood ratio(LLR) was generated from single-antenna data on the basis of the calculation principle of LLR.The formula for computing the LLR of turbo decoder's input,using single-antenna data,was deduced.The dual-antenna TM3 LTE space division multiplexing data decoding as specified by LTE protocol was achieved using a single-antenna algorithm.The simulation results show that the performance loss of singleantenna decoding algorithm is very small as compared with the normal dual-antenna decoding method.And the decoding speed of the single-antenna algorithm is verified by using Texas Instruments C6670 digital signal processing chip (DSP).It is shown that the algorithm can reduce the complexity of the LTE system design by reducing two receiving links to single receiving link.Production cost and power consumption can be reduced,which has a great value to the internet of things equipment and the special network equipment.关键词
传输模式/空分复用/对数似然比/参考星座图/DSPKey words
transmission mode/reference constellation/log-likelihood ratio/space division multiplexing/digital signal process分类
信息技术与安全科学引用本文复制引用
刘建霞,回海生..单天线解空分复用算法的实现与仿真[J].太原理工大学学报,2017,48(2):200-205,6.
