高技术通讯2017，Vol.27Issue(3)：213-219,7.DOI:10.3772/j.issn.1002-0470.2017.03.003
基于空时块编码和正交脉冲的MIMO系统性能研究
A study on the performance of MIMO systems based on space time block coding and orthogonal impulse
摘要
Abstract
In order to effectively utilize the short distance, high data rate of impulse radios (IR) and the larger capacity of multi-input multi-output (MIMO) communication systems, MIMO ultra wide-band (UWB) communication system based on space time block coding (STBC) and orthogonal impulse was proposed.The specific implementation was made by the analysis of the IR-MA (multiple address) signal model and channel model,transceiver structure and detection methods for a standard single-input single-output (SISO) impulse radio system based on direct sequence UWB as the multiple access technology.A new method was proposed to combine space time block encoding and orthogonal impulse, and the spatial diversity and encoding performance were obtained by using the technology for FS-rake coherent reception (CR) and non-coherent reception (NCR) and the IEEE UWB channel model,then the theoretical upper bounds were obtained to describe the performance trends relatively well at high SNR.The simulation results show that the proposed STBC-IR scheme can obtain the better spatial diversity and encoding gain in comparison with the traditional SL-IR scheme, which can be used to increase the transmission distance and reduce the rake receiver complexity.The STBC-IR scheme can effectively eliminate the timing jitter influence in UWB communications too.关键词
空时块编码(STBC)/正交脉冲/多输入多输出(MIMO)系统/空间分集/误码率(BER)Key words
space-time block coding(STBC)/orthogonal impulse/multi-input multi-output (MIMO) system/spatial diversity/bit error rate (BER)引用本文复制引用
赵海军,崔梦天,陈宇洋..基于空时块编码和正交脉冲的MIMO系统性能研究[J].高技术通讯,2017,27(3):213-219,7.基金项目
国家自然科学基金(61379019),西华师范大学基本科研业务费专项资金(14C002)和南充市科技支撑(15A0068)资助项目. （61379019）
