Selection diversity for wireless communications with non-identical Weibull statistics

Author

Sagias, Nikos C. ; Karagiannidis, George K. ; Zogas, Dimitris A. ; Mathiopoulos, P. Takis

Author_Institution

Inst. for Space Applications & Remote Sensing, Nat. Obs. of Athens, Greece

Volume

6

fYear

2004

fDate

29 Nov.-3 Dec. 2004

Firstpage

3690

Abstract

Motivated by the suitability of the Weibull distribution to model multipath fading channels, the performance of L-branch selection combining (SC) receivers, with non-identical statistics, is presented. Deriving a useful expression for the probability density function of the SC output signal-to-noise ratio (SNR), important performance metrics are studied. More specifically, a closed-form expression is derived for the moments of the combiner output SNR, which is used to study the average output SNR and the amount of fading. The average symbol error probability for several coherent and non-coherent, binary and multilevel modulation schemes is also obtained in closed-form.

Keywords

Weibull distribution; digital radio; diversity reception; error statistics; fading channels; modulation; multipath channels; radio receivers; L-branch selection combining receivers; SC receivers; SNR; Weibull distribution; binary modulation; closed-form expression; coherent modulation; multilevel modulation; multipath channels; multipath fading channels; noncoherent modulation; nonidentical Weibull statistics; nonidentical statistics; probability density function; selection diversity; signal-to-noise ratio; symbol error probability; wireless communications; wireless digital communications; Closed-form solution; Diversity reception; Fading; Measurement; Probability density function; Signal to noise ratio; Statistical distributions; Statistics; Weibull distribution; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE

Print_ISBN

0-7803-8794-5

Type

conf

DOI

10.1109/GLOCOM.2004.1379058

Filename

1379058