Measured capacity gain using waterfilling in frequency selective MIMO channels

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

We analyze the channel capacity of multiple-input multiple-output (MIMO) systems in frequcncy selective channels, with channel knowledge at the transmitter side. An optimum transmission scheme uses Shannon's principle of waterfilling jointly in the frequency and the spatial domain. However, we show in this paper that the largest gain by using waterfilling resides in the spatial domain, and that the capacity gain from the frequency domain is very small for MIMO systems. We quantify the gain for a theoretical Rayleigh fading channel model and for microcellular channels as measured in an enclosed court-yard.

Details

Authors
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • Rayleigh fading channel, microcellular channels, spatial domain, frequency selective channels, channel capacity gain, MIMO channels, multiple-input multiple-output systems, frequency domain, Shannon water filling principle
Original languageEnglish
Title of host publicationThe 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2002 , vol 1-5, Proceedings
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages1347-1351
ISBN (Print)0-7803-7589-0
Publication statusPublished - 2002
Publication categoryResearch
Peer-reviewedYes
Event13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications - Lisbon, Portugal
Duration: 2002 Sep 152002 Sep 18

Conference

Conference13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications
CountryPortugal
CityLisbon
Period2002/09/152002/09/18