A new MIMO algorithm for high data rate transmission

The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI:10.1109/AUSWIRELESS.2007.8

Yuro Lee, Minho Cheong, Seokhyun Yoon, Sok-Kyu Lee

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Abstract

In this paper, a receiver algorithm for an 8x8 MIMO system is considered for Giga-bps data transmission, in which the decoding complexity and latency are crucial factors for implementation of MIMO system with large number of transmit and receive antennae. To reduce computational complexity and the decoding latency, a 3-stage receiver algorithm is proposed. The MIMO receiver consists of multidimensional detection, partial interference cancellation and the weighted zero-forcing equalization, where the transmit antennae are divided into two group. The first group is encoded by a lower rate code and multidimensional search algorithm is used for demodulation and decoding, while the second group is encoded by higher rate code and weighted zero-forcing equalization is used. Once the first group is decoded successfully, they are cancelled out from the received vector for the decoding of the second group. The complexity and the error rate performance are investigated and compared with a well-known sphere decoding algorithm.

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一种用于高数据速率传输的MIMO算法

本文研究了一种8x8 MIMO系统的接收算法，用于千兆比特的数据传输，其中解码复杂度和延迟是实现具有大量发射和接收天线的MIMO系统的关键因素。为了降低计算复杂度和解码延迟，提出了一种三级接收算法。MIMO接收机由多维检测、部分干扰抵消和加权强制零均衡组成，其中发射天线分为两组。第一组采用低码率编码，采用多维搜索算法解调解码;第二组采用高码率编码，采用加权强制零均衡。一旦第一组解码成功，它们就从接收到的矢量中被取消，用于解码第二组。研究了该算法的复杂度和误码率性能，并与一种著名的球面译码算法进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)

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