Performance analysis of maximum ratio combining with imperfect channel estimation in the presence of cochannel interferences

In this paper, we analyze the performance of maximum ratio combining (MRC) systems with imperfect channel estimation in the presence of cochannel interference (CCI) with an arbitrary power interference-to-noise ratio (INR). The maximum combining weights are the imperfect estimates of the desired user's fading channel coefficients and are assumed to be complex Gaussian distributed. The quantified measure for estimation error is the correlation coefficient between the true fading channel coefficients and their estimates. Exact closedform expressions are derived for the probability density function(pdf) of the signal-to-interference-plus-noise ratio (SINR), as well as performance metrics including outage probability and the average symbol error probability (ASEP) for some modulation formats. Simulation results demonstrate the accuracy of our theoretic analysis.

[1]  A. Erdélyi,et al.  Higher Transcendental Functions , 1954 .

[2]  Norman C. Beaulieu,et al.  Outage probability of MRC with unequal-power cochannel interferers in correlated Rayleigh fading , 2006, IEEE Communications Letters.

[3]  Valentine A. Aalo,et al.  Average error probability of digital cellular radio systems using MRC diversity in the presence of multiple interferers , 2003, IEEE Trans. Wirel. Commun..

[4]  J. Craig.  A new, simple and exact result for calculating the probability of error for two-dimensional signal constellations , 1991, MILCOM 91 - Conference record.

[5]  Sandeep Chennakeshu,et al.  Error rates for Rayleigh fading multichannel reception of MPSK signals , 1995, IEEE Trans. Commun..

[6]  Abbas Jamalipour,et al.  Wireless communications , 2005, GLOBECOM '05. IEEE Global Telecommunications Conference, 2005..

[7]  Asrar U. H. Sheikh,et al.  Outage probability of cellular radio systems using maximal ratio combining in the presence of multiple interferers , 1999, IEEE Trans. Commun..

[8]  Valentine A. Aalo,et al.  Outage probability of cellular radio systems using maximal ratio combining in Rayleigh fading channel with multiple interferers , 2000 .

[9]  Bhaskar D. Rao,et al.  The Effect of Imperfect Channel Estimation on the Performance of Maximum Ratio Combining in the Presence of Cochannel Interference , 2006, IEEE Transactions on Vehicular Technology.

[10]  Mohamed-Slim Alouini,et al.  Digital Communication Over Fading Channels: A Unified Approach to Performance Analysis , 2000 .

[11]  Alexander M. Haimovich,et al.  Performance analysis of maximal ratio combining and comparison with optimum combining for mobile radio communications with cochannel interference , 2000, IEEE Trans. Veh. Technol..

[12]  M. Win,et al.  Diversity with practical channel estimation , 2005, IEEE Transactions on Wireless Communications.

[13]  P. Bello,et al.  Predetection Diversity Combining with Selectively Fading Channels , 1962 .

[14]  John G. Proakis,et al.  Digital Communications , 1983 .

[15]  J. Proakis,et al.  Probabilities of Error for Adaptive Reception of M-Phase Signals , 1968 .

[16]  Norman C. Beaulieu,et al.  General forms for maximal ratio diversity with weighting errors , 1999, IEEE Trans. Commun..

[17]  Laurence B. Milstein,et al.  Performance analysis of linear diversity-combining schemes on Rayleigh fading channels with binary signaling and Gaussian weighting errors , 2005, IEEE Transactions on Wireless Communications.

[18]  Kevin W. Sowerby,et al.  Outage Probabilities in Mobile Radio Systems Suffering Cochannel Interference , 1992, IEEE J. Sel. Areas Commun..

[19]  Keith Q. T. Zhang,et al.  Outage performance for maximal ratio combiner in the presence of unequal-power co-channel interferers , 2004, IEEE Communications Letters.

[20]  Valentine A. Aalo,et al.  On the outage probability of optimum combining and maximal ratio combining schemes in an interference-limited Rice fading channel , 2002, IEEE Trans. Commun..

[21]  Norman C. Beaulieu,et al.  Outage probability of MRC with equi-power cochannel interferers in correlated Rayleigh fading , 2005, IEEE Communications Letters.

[22]  Jean-Paul M. G. Linnartz,et al.  Exact analysis of the outage probability in multiple-user mobile radio , 1992, IEEE Trans. Commun..

[23]  I. S. Gradshteyn,et al.  Table of Integrals, Series, and Products , 1976 .

[24]  Paul Fortier,et al.  Maximal-ratio combining architectures and performance with channel estimation based on a training sequence , 2004, IEEE Transactions on Wireless Communications.

[25]  Mahrokh G. Shayesteh,et al.  On the error probability of linearly modulated signals on frequency-flat Ricean, Rayleigh, and AWGN channels , 1995, IEEE Trans. Commun..

[26]  Valentine A. Aalo,et al.  Performance analysis of maximal ratio combining in the presence of multiple equal-power cochannel interferers in a Nakagami fading channel , 2001, IEEE Trans. Veh. Technol..

[27]  Laurence B. Milstein,et al.  Performance Analysis of Linear Modulation Schemes With Generalized Diversity Combining on Rayleigh Fading Channels With Noisy Channel Estimates , 2007, IEEE Transactions on Information Theory.

[28]  Ranjan K. Mallik,et al.  Analysis of Rake reception with multiple symbol weight estimation for antipodal signaling , 2003, IEEE Trans. Commun..

[29]  A. C. Aitken,et al.  Random variables and probability distributions , 1938 .

[30]  Q. T. Zhang,et al.  Outage probability in cellular mobile radio due to Nakagami signal and interferers with arbitrary parameters , 1996 .

[31]  Harold Exton,et al.  Handbook of Hypergeometric Integrals: Theory, Applications, Tables, Computer Programs , 1978 .

[32]  Bhaskar D. Rao,et al.  Maximum ratio Combining performance with imperfect channel estimates , 2002, 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[33]  David R. Cox.  Cochannel Interference Considerations in Frequency Reuse Small-Coverage-Area Radio Systems , 1982, IEEE Trans. Commun..

[34]  Norman C. Beaulieu,et al.  Exact error-rate analysis of diversity 16-QAM with channel estimation error , 2004, IEEE Transactions on Communications.

[35]  M. Gans.  The Effect of Gaussian Error in Maximal Ratio Combiners , 1971 .

[36]  D. G. Brennan,et al.  Linear diversity combining techniques , 2003 .