Performance study on a novel VBLAST modulation scheme under SUC detection

JIANG Zhan-jun; PAN Wen; WANG Yan; YOU Xiao-hu

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Performance study on a novel VBLAST modulation scheme under SUC detection

更新时间：2024-10-14

- Performance study on a novel VBLAST modulation scheme under SUC detection
- Vol. 30, Issue 2, Pages: 47-51(2009)
- 作者机构：
  
  东南大学移动通信国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN761
- Published：2009
- 稿件说明：
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JIANG Zhan-jun, PAN Wen, WANG Yan, et al. Performance study on a novel VBLAST modulation scheme under SUC detection[J]. 2009, 30(2): 47-51.
DOI：

JIANG Zhan-jun, PAN Wen, WANG Yan, et al. Performance study on a novel VBLAST modulation scheme under SUC detection[J]. 2009, 30(2): 47-51. DOI：

摘要

设计了一种应用于VBLAST系统的新型调制方案

来改善系统接收端作连续干扰抵消(SUC)检测时出现错误传播导致系统传输可靠性下降的问题。在该调制方案中对先检测的信号选用抗噪声性能高的调制方式(例如二进制相移键控调制)

而对后续检测的信号逐步选用频带利用率较高的调制方式(例如多进制调制)

从而降低先检测的信号对后检测的信号的影响。分析与仿真结果表明

采用该方案的系统在不降低系统传输有效性的条件下

接收端作SUC检测时的传输可靠性有了一定程度的提高。

Abstract

A new modulation scheme was proposed to deal with the error propagation（EP） existing during the successive cancellation（SUC） detection in the VBLAST（vertical Bell labs layered space-time） system.In the scheme

the former demodulated signal was designed to use the modulation with better noise suppression performance（e.g.binary phase shift keying modulation）

and the latter demodulated signal was suggested to employ the modulation with higher frequency ef-ficiency（e.g.multi-decimal modulations）.Analysis and simulation results show that system reliability for SUC detection is improved without penalty to the system availability.

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