Minimum selection GSC in independent Rayleigh fading

Author

Mallik, Ranjan K. ; Gupta, Pranay ; Zhang, Q.T.

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India

Volume

54

Issue

3

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

1013

Lastpage

1021

Abstract

We analyze the error performance of minimum selection generalized selection combining (MS-GSC), in which the minimum number of diversity branches are selected such that their combined signal-to-noise ratio (SNR) is above a given threshold. A flat Rayleigh fading channel with independent and distinctly distributed branch SNRs is considered. By transforming the ordered instantaneous branch SNRs to their differences, we derive the distribution of the number of selected branches in closed form. We then modify the derivation of this distribution to get the characteristic function (cf.) of the combiner output SNR. This cf. is used to obtain the symbol error probability for different coherent digital modulation schemes.

Keywords

Rayleigh channels; diversity reception; error statistics; SNR; characteristic function; flat Rayleigh fading channel; independent Rayleigh fading; minimum selection generalized selection combining; signal-to-noise ratio; symbol error probability; Baseband; Digital modulation; Diversity reception; Error analysis; Error probability; Fading; Probability distribution; Rayleigh channels; Signal processing; Signal to noise ratio; Independent and distinctly distributed Rayleigh fading; minimum selection generalized selection combining (MS-GSC); number of selected branches; symbol error probability;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2005.844669

Filename

1433245