Adaptive multicarrier modulation for wireless systems

S. T. Chung, A. Goldsmith

Research output: Contribution to journalConference articlepeer-review

22 Scopus citations

Abstract

We propose an adaptive multicarrier modulation technique, where transmit rate and power are adapted in both time and frequency. We derive the optimal adaptation strategy and determine its performance. We also compare this performance with that of multicarrier systems that adapt only in the temporal or spectral domains. Our results indicate that as long as these domains have enough degrees of freedom, adaptive modulation across one domain performs almost the same as the more complex two dimensional adaptive policy. If, however, rate or power is restricted to be constant over the time and/or frequency domains, two dimensional adaption policy shows significantly better performances than adaptive modulation across one domain.

Original languageEnglish (US)
Pages (from-to)1603-1607
Number of pages5
JournalConference Record of the Asilomar Conference on Signals, Systems and Computers
Volume2
StatePublished - 2000
Externally publishedYes
Event34th Asilomar Conference - Pacific Grove, CA, United States
Duration: Oct 29 2000Nov 1 2000

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Computer Networks and Communications

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