Abstract
-Optimum combining for space diversity reception is studied in digital cellular mobile radio communication systems with Rayleigh fading and multiple cochannel interferers. This paper considers binary phase-shift keying (BPSK) modulation in a flat Rayleigh-fading environment when the number of interferences L is no less than the number of antenna elements N(L > N). The approach of this paper and its main contribution is to carry out the analysis in a multivariate framework. Using this approach and with the assumption of equal-power interferers, it is shown that the probability density function of the maximum signal-to-interference ratio (SIR) at the output of the optimum combiner has a Hotelling T2 distribution. Closed form expressions using hypergeometric functions are derived for the outage probability and the average probability of bit error. Theoretical results are demonstrated by Monte Carlo simulations.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 473-479 |
| Number of pages | 7 |
| Journal | IEEE Transactions on Communications |
| Volume | 46 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1998 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
Keywords
- Cochannel interference
- Fading channels
- Optimum combining
- Space diversity