On the performance of interference cancellation in wireless ad hoc networks

  • Authors:
  • Olfa Ben Sik Ali;Christian Cardinal;François Gagnon

  • Affiliations:
  • Department of Electrical Engineering, École Polytechnique, Montréal, CA;Department of Electrical Engineering, École Polytechnique, Montréal, CA;Department of Electrical Engineering, École de Technologie Supérieure, Montréal, CA

  • Venue:
  • IEEE Transactions on Communications
  • Year:
  • 2010

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Abstract

This letter presents a novel approach for deriving a lower bound on the outage probability of interference cancellation receiver in ad hoc networks for a class of channel fading. Our approach is based on the following observation: under the power decay law model for large-scale fading with an exponent α strictly greater than 2, the sum of the interferences at a receiver has the same order as the strongest signal. This feature still holds when the small-scale fading has a finite 2/α-fractional moment. This fact is used to develop an approximation which is also a compact lower bound on the outage probability.