Adaptive modulation for MIMO-OFDM systems

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Abstract

We consider adaptive modulation in OFDM systems employing multiple transmitter and receiver antennas. The goal is to determine the optimum choice of modulation constellations from among a given set in order to minimize the transmit power, subject to a total bit rate and error rate constraint. A dynamic programming based algorithm, that results in optimum selection of constellation sizes, is proposed to solve the resulting discrete optimization problem.
Original languageEnglish
Title of host publicationIEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004
PublisherInstitute of Electrical and Electronics Engineers
Pages1266-1270
Number of pages5
ISBN (Print)0-7803-8521-7
DOIs
Publication statusPublished - 18 Apr 2005
Externally publishedYes
Event60th Vehicular Technology Conference (VTC 2004-Fall) - Los Angeles, CA, USA, Los Angeles, CA, United States
Duration: 26 Sept 200429 Sept 2004
Conference number: 60

Conference

Conference60th Vehicular Technology Conference (VTC 2004-Fall)
Abbreviated titleVTC 2004-Fall
Country/TerritoryUnited States
CityLos Angeles, CA
Period26/09/0429/09/04

Keywords

  • OFDM modulation
  • Adaptive systems
  • Transmitters
  • Adaptive arrays
  • Receiving antennas
  • Transmitting antennas
  • Bit rate
  • Error analysis
  • Dynamic programming
  • Heuristic algorithms

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