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

1

fYear

2005

Firstpage

478

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 SNR is considered. By transforming the ordered instantaneous branch SNR 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 (c.f.) of the combiner output SNR. This c.f. is used to obtain the symbol error probability for different coherent digital modulation schemes.

Keywords

Rayleigh channels; diversity reception; error statistics; modulation; MS-GSC; SNR; characteristic function; closed-form distribution; coherent digital modulation; diversity branches; error performance; 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; Performance analysis; Rayleigh channels; Signal analysis; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2005. ICC 2005. 2005 IEEE International Conference on

Print_ISBN

0-7803-8938-7

Type

conf

DOI

10.1109/ICC.2005.1494398

Filename

1494398