首页> 外文会议>2012 International Conference on Wireless Communications amp; Signal Processing >Joint iterative decoding and MMSE-SIC VBLAST detection of LDPC coded MIMO systems
【24h】

Joint iterative decoding and MMSE-SIC VBLAST detection of LDPC coded MIMO systems

机译:LDPC编码MIMO系统的联合迭代解码和MMSE-SIC VBLAST检测

获取原文
获取原文并翻译 | 示例

摘要

A joint iterative low-density parity-check (LDPC) decoding and minimum mean square error with successive interference cancel (MMSE-SIC) vertical-Bell laboratories layered space-time (VBLAST) detection of LDPC coded multiple input multiple output (MIMO) system is proposed in an additive white Gaussian noise (AWGN) channel. It combines the LDPC decoding with VBLAST detection into a unified iterative framework by integrity and united method. It adopts the joint iterative message processing through the VBALST detector and the variable and check nodes of LDPC decoder. So it reduces the unnecessary information loss, which usually happens in separated coding and detection MIMO systems. Simulation results show that the proposed joint LDPC coded binary phase shift keying (BPSK) MIMO schemes outperforms the contrast scheme of simple concatenation about 0.3∼0.5 dB at a bit-error-ratio (BER) of 10−5 in an AWGN channel. In addition, it only requires some rational coding and detection complexity, because it employs the sparse check matrices for encoding and applies joint processing for detection too. Therefore, the proposed joint LDPC decoding and MMSE-SIC VBLAST detection of an LDPC coded MIMO system can be efficiently applied in modern wireless digital communications for high performance.
机译:LDPC编码的多输入多输出(MIMO)系统的联合迭代低密度奇偶校验(LDPC)解码和最小均方误差以及连续干扰消除(MMSE-SIC)垂直贝尔实验室分层时空(VBLAST)检测在加性高斯白噪声(AWGN)信道中提出了这种方法。它通过完整性和统一的方法将LDPC解码和VBLAST检测结合到一个统一的迭代框架中。它通过VBALST检测器以及LDPC解码器的变量和校验节点采用联合迭代消息处理。因此,它减少了不必要的信息丢失,这种情况通常发生在分离的编码和检测MIMO系统中。仿真结果表明,在10 -5 在AWGN频道中。另外,由于采用稀疏校验矩阵进行编码,并且也采用联合处理进行检测,因此只需要合理的编码和检测复杂度。因此,所提出的LDPC编码的MIMO系统的联合LDPC解码和MMSE-SIC VBLAST联合检测可以有效地应用于现代无线数字通信中以实现高性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号