Adaptive transmit selection with interference suppression

  • Authors:

  • Redha M. Radaydeh;Mohamed-Slim Alouini

  • Affiliations:

  • Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Mekkah Province, Kingdom of Saudi Arabia;Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Mekkah Province, Kingdom of Saudi Arabia

  • Venue:
  • ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
  • Year:
  • 2010

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Abstract

This paper studies the performance of adaptive transmit channel selection in muitipath fading channels. The adaptive selection algorithms are configured for single-antenna bandwidth-efficient or power-efficient transmission with as low transmit channel estimations as possible. Due to the fact that the number of active co-channel interfering signals and their corresponding powers experience random behavior, the adaptation to channels conditions, assuming uniform buffer and traffic loading, is proposed to be jointly based on the transmit channels instantaneous signal-to-noise ratios (SNRs) and signal-to-interference-plus-noise ratios (SINRs). Two interference cancelation algorithms, which are the dominant cancelation and the less complex arbitrary cancelation, are considered, for which the receive antenna array is assumed to have small angular spread. Analytical formulation for some performance measures in addition to several processing complexity and numerical comparisons between various adaptation schemes are presented.