计算机科学 ›› 2006, Vol. 33 ›› Issue (8): 22-24.

• 计算机网络与信息安全 • 上一篇    下一篇

几种空时码容量对比

张碧军 朱光喜   

  1. 华中科技大学电子与信息工程系,武汉430074
  • 出版日期:2018-11-17 发布日期:2018-11-17
  • 基金资助:
    “未来移动通信系统基础理论与技术研究”(No.60496315),国家863(No.2003AA12331005).

ZHANG Bi-Jun, ZHU Guang-Xi (Dept. of Electronics and Information, Huazhong Univ. of Sci. & Tech. Wuhan 430074)   

  • Online:2018-11-17 Published:2018-11-17

摘要: 贝尔实验室提出的分层空时(layered space-time code,LSTC)主要基于空分复用思想,它的主要目的是提高系统频谱效率;而其它空时码(space-time code,STC),如空时分组码(space-time block code,STBC)、空时格码(space-time trellis code,STTC)等主要基于发射分集。它们主要利用空间分集带来的增益,包括分集增益和编码增益来对抗无线信道的各种衰落。本文从信道容量角度评估各种空时编码的性能,同时将其和相同收发天线数下多输入输出

关键词: 分层空时码 空时码 信道容量 多输入多输出

Abstract: Layered space-time code( LSTC) proposed by Bell labs is mostly based on spatial multiplexing, its main object is to improve the system frequency efficiency. Yet a variety of space-time codes(STC), such as space-time block code (STBC) and space-time trelli

Key words: Layered space-time code(LSTC), Space-time code(STC), Channel capacity, MIMO

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