Title :
Performance analysis of maximal ratio combining in the presence of multiple equal-power cochannel interferers in a Nakagami fading channel
Author :
Aalo, Valentine A. ; Zhang, Jingjun
Author_Institution :
Dept. of Electr. Eng., Florida Atlantic Univ., Boca Raton, FL, USA
fDate :
3/1/2001 12:00:00 AM
Abstract :
The effect of cochannel interference on the performance of digital mobile radio systems in a Nakagami (1960) fading channel is studied. The performance of maximal ratio combining (MRC) diversity is analyzed in the presence of multiple equal-power cochannel interferers and additive white Gaussian noise. Closed-form expressions are derived for the average probability of error as well as outage probability of both coherent and noncoherent (differentially coherent) binary frequency-shift keying and binary phase-shift keying schemes in an environment with cochannel interference and noise. The results are expressed in terms of the confluent hypergeometric function of the second kind, a function that can be easily evaluated numerically. The analysis assumes an arbitrary number of independent and identically distributed Nakagami interferers
Keywords :
AWGN; cellular radio; cochannel interference; digital radio; diversity reception; fading channels; frequency shift keying; phase shift keying; probability; MRC diversity; Nakagami fading channel; additive white Gaussian noise; average error probability; binary frequency-shift keying; binary phase-shift keying; cellular radio; closed-form expressions; cochannel interference; coherent BFSK; coherent BPSK; confluent hypergeometric function; differentially coherent BFSK; differentially coherent BPSK; digital mobile radio systems; i.i.d. Nakagami interferers; maximal ratio combining; multiple equal-power cochannel interferers; noncoherent BFSK; noncoherent BPSK; outage probability; performance analysis; Additive white noise; Closed-form solution; Diversity reception; Fading; Frequency shift keying; Interchannel interference; Land mobile radio; Performance analysis; Phase shift keying; Working environment noise;
Journal_Title :
Vehicular Technology, IEEE Transactions on
