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| Title | Effect of channel estimation errors on MRC diversity in Rician fading channels |
| Publication Type | Journal Article |
| Year of Publication | 2005 |
| Authors | Ma, Y., R. Schober, and S. Pasupathy |
| Journal | Vehicular Technology, IEEE Transactions on |
| Volume | 54 |
| Pagination | 2137 - 2142 |
| Date Published | nov. |
| ISSN | 0018-9545 |
| Keywords | channel estimation, diversity reception, error probability formulas, error statistics, imperfect channel estimation, M-ary phase shift keying, maximum ratio combining, phase shift keying, PSK, Rician channels, Rician fading channels, signal-to-noise ratio, SNR |
| Abstract | We study the effect of imperfect channel estimation (ICE) on the performance of M-ary phase shift keying (M-PSK) with maximum ratio combining (MRC) in generalized Rician fading channels. First, we derive the error probability formulas for M-PSK with MRC and ICE in arbitrary Rician fading channels. Furthermore, we derive the effective receiver output signal-to-noise ratio (SNR) statistics and the outage probability, and analytically quantify the average SNR loss of M-PSK caused by ICE, assuming independent diversity branches. Finally, we point out a major approximation in a popular approach used in the literature to evaluate the adverse effect of ICE. |
| URL | http://dx.doi.org/10.1109/TVT.2005.853454 |
| DOI | 10.1109/TVT.2005.853454 |