CN1561600A - 一种Rayleigh信道下时空TRELLIS编码方法 - Google Patents

一种Rayleigh信道下时空TRELLIS编码方法 Download PDF

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Publication number
CN1561600A
CN1561600A CN02819176.5A CN02819176A CN1561600A CN 1561600 A CN1561600 A CN 1561600A CN 02819176 A CN02819176 A CN 02819176A CN 1561600 A CN1561600 A CN 1561600A
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China
Prior art keywords
diversity
time
antenna
effective length
far
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Inventor
李永会
李轶
李瀚宇
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Linkair Communications Inc
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Linkair Communications Inc
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Publication of CN1561600A publication Critical patent/CN1561600A/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0637—Properties of the code
    • H04L1/065—Properties of the code by means of convolutional encoding

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Error Detection And Correction (AREA)

Abstract

本发明提出了一种Rayleigh信道下时空TRELLIS编码的最优设计方法，其中包括：在Rayleigh衰落信道下，对n发m收的时空编码系统而言，如果要使系统获得的分集和编码增益最大，对错误概率最小，必须使两个码字之间最小的有效长度和平方乘积距最大；其中对应于系统所获得的总的分集重数，包括时间分集，发射分集和接收分集，时间分集重数对应于时间索引i的个数，发射分集重数对应于发射天线索引p的个数，接收分集重数为m，相应于系统获得的编码增益。采用本发明提供的根据有效长度和最小乘积距设计的时空编码，可以获得更大的编码增益，在Rayleigh信道下，具有很好的抗衰落性能。

Description

PCT国内申请，说明书已公开。

Claims (1)

  1. PCT国内申请，权利要求书已公开。
CN02819176.5A 2002-04-04 2002-04-04 一种Rayleigh信道下时空TRELLIS编码方法 Pending CN1561600A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2002/000233 WO2003085877A1 (fr) 2002-04-04 2002-04-04 Procede de codage de treillis spatiotemporels dans un canal de rayleigh

Publications (1)

Publication Number Publication Date
CN1561600A true CN1561600A (zh) 2005-01-05

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ID=28679889

Family Applications (1)

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CN02819176.5A Pending CN1561600A (zh) 2002-04-04 2002-04-04 一种Rayleigh信道下时空TRELLIS编码方法

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CN (1) CN1561600A (zh)
AU (1) AU2002252940A1 (zh)
WO (1) WO2003085877A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112579714A (zh) * 2019-09-30 2021-03-30 阿里巴巴集团控股有限公司 数据查询方法、装置、设备及机器可读存储介质

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017080B4 (de) * 2005-04-08 2007-07-26 Accelant Communications Gmbh Übertragungsverfahren in einem Funksystem mit mehreren Sende-/Empfangszweigen in der Basisstation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5301209A (en) * 1991-10-09 1994-04-05 At&T Bell Laboratories Multidimensional trellis-coded modulation for fading channels
AU2064101A (en) * 1999-12-29 2001-07-16 Nokia Corporation Space-time code design for fading channels
ATE353505T1 (de) * 2000-03-01 2007-02-15 Nokia Corp Verkettete raum-zeit-kodierung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112579714A (zh) * 2019-09-30 2021-03-30 阿里巴巴集团控股有限公司 数据查询方法、装置、设备及机器可读存储介质

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Publication number Publication date
WO2003085877A1 (fr) 2003-10-16
AU2002252940A1 (en) 2003-10-20

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