Rate-Adaptive Coded Multiuser OFDM for Downlink Wireless Systems

  • Christian Ibars
  • Yeheskel Bar-Ness

Abstract

A multiuser OFDM system using rate-adaptive codes is described and proposed for the wireless downlink. The code rate is adaptively modified according to the number of active users. The system offers enhanced error protection at partial load. As a result, the bit error rate is reduced and less transmit power is required, reducing the interference level at other cells.

Keywords

Fading Channel Channel State Information Code Rate Orthogonal Frequency Division Multiple Access Convolutional Code 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2002

Authors and Affiliations

  • Christian Ibars
    • 1
  • Yeheskel Bar-Ness
    • 1
  1. 1.Center for Communications and Signal Processing ResearchNew Jersey Institute of TechnologyNewarkUSA

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