Proc. IEEE International Conference on Acoustics, Speech and Signal Processing, Apr. 14-19, 2009, Taipei, Taiwan.

Performance Bounds of MIMO Receivers in the Presence Of Radio Frequency Interference

Aditya Chopra (1), Kapil Gulati (1), Brian L. Evans (1), Keith R. Tinsley (2) and Chaitanya Sreerama (2)

(1) Department of Electrical and Computer Engineering, Engineering Science Building, The University of Texas at Austin, Austin, TX 78712 USA
adityachopra@gmail.com - gulati.k@gmail.com - bevans@ece.utexas.edu

(2) System Technology Lab, Intel, Hillsborough, Oregon USA.

Paper Draft - Poster Draft

RFI Modeling and Mitigation Toolbox

RFI Mitigation Research at UT Austin

Abstract

Multi-input multi-output (MIMO) receivers have generally been designed and their communication performance analyzed under the assumption of additive Gaussian noise. Wireless transceivers, however, may also be affected by radio frequency interference (RFI) that is well modeled using non-Gaussian impulsive statistics. In this paper, we derive bounds on the communication performance for a two transmit, two receive antenna MIMO system in the presence of RFI. Our contributions include derivation of
  1. channel capacity in the presence of RFI,
  2. probability of symbol error for uncoded transmissions, and
  3. Chernoff bound on the pairwise error probability and cutoff rate as a measure of the throughput performance for coded transmissions.
Comparison with the communication performance bounds for receivers designed assuming additive Gaussian noise demonstrates degradation in communication performance in the presence of RFI.

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Last Updated 08/10/08.