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Mutual Information of IID complex Gaussian signals on block Rayleigh-faded channels

In English

Författare

Summary, in English

We present a method to compute, quickly and efficiently, the mutual information achieved by an IID (independent identically distributed) complex Gaussian input

on a block Rayleigh-faded channel. The method accommodates both scalar and MIMO (multiple-input multiple-output) settings.

Operationally, the mutual information thus computed represents the highest spectral efficiency that can be attained using standard Gaussian codebooks.



Examples are provided that

illustrate the loss in spectral efficiency caused by fast fading and how that loss is amplified by the use of multiple transmit antennas.

These examples are further enriched by comparisons with the channel capacity under perfect channel-state information at the receiver, and with the spectral

efficiency attained by pilot-based transmission.

Publiceringsår

2010

Språk

Engelska

Sidor

300-304

Publikation/Tidskrift/Serie

IEEE International Symposium on Information Theory

Dokumenttyp

Konferensbidrag

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Nyckelord

  • wireless communications
  • MIMO
  • mutual information
  • Non coherent
  • Gaussian signaling

Conference name

IEEE International Symposium on Information Theory (ISIT), 2010

Conference date

2010-06-13 - 2010-06-18

Conference place

Austin, Texas, United States

Status

Published

Forskningsgrupp

  • Telecommunication Theory

ISBN/ISSN/Övrigt

  • ISBN: 978-1-4244-6960-4