Title :
On the Closed-Form Performance Analysis of Maximal Ratio Combining in Shadowed-Rician Fading LMS Channels
Author :
Bhatnagar, M.R. ; Arti, M.K.
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol. - Delhi, New Delhi, India
Abstract :
In this paper, the maximal ratio combining (MRC) scheme in Shadowed-Rician (SR) fading land mobile satellite (LMS) channels is studied. The MRC scheme for SR fading LMS channels has been studied in existing literature; however, most of the existing analytical results are in the form of infinite power series, which are not in closed-form. In this paper, we derive approximate closed-form expressions of the probability density function and cumulative distribution function of the received signal-to-noise ratio of the MRC based receiver in SR fading LMS channels. Then we provide approximate closed-form expressions of the bit error rate (BER), outage probability, and capacity of the considered scheme. One of the derived closed-form BER expressions is found useful for obtaining the analytical diversity order and coding gain of the considered MRC scheme.
Keywords :
Rician channels; antenna arrays; approximation theory; channel coding; diversity reception; error statistics; mobile satellite communication; quadrature amplitude modulation; radio receivers; receiving antennas; statistical distributions; M-QAM; M-ary quadrature amplitude modulation; MRC based receiver; SR fading LMS channels; approximate closed-form BER expressions; bit error rate; closed-form performance analysis; coding gain; colocated multiple antenna based techniques; cumulative distribution function; distributed multiple antenna based techniques; diversity order; infinite power series; maximal ratio combining scheme; outage probability; probability density function; received signal-to-noise ratio; shadowed-Rician fading LMS channels; shadowed-Rician fading land mobile satellite channels; single antenna; Bit error rate; Fading; Least squares approximations; Performance analysis; Satellites; Shadow mapping; Signal to noise ratio; Land mobile satellite (LMS) channel; M-ary phase shift keying (M-PSK); M-ary quadrature amplitude modulation (M-QAM); Shadowed-Rician (SR) fading;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.111313.131963
