BER of Noncoherent MFSK with Postdetection Switch-and-Stay Combining in TWDP Fading

Abstract

The performance of noncoherent M -ary frequencyshift keying (MFSK) with dual-branch postdetection switch and stay combining (SSC) in two-wave with diffuse power (TWDP) fading is studied. A closed-form expression for the average bit error rate (BER) of noncoherent MFSK with dual-branch postdetection SSC is derived. Monte carlo simulation results are presented to verify the validity of the obtained analytical expressions. The effects of TWDP fading parameters on the relative performances of postdetection and predetection SSC receivers are studied. It is shown that postdetection SSC has superior performance over predetection SSC.Index Terms-Diversity combining, fading channels, noncoherent frequency shift keying, predetection diversity, postdetection diversity, Rayleigh fading, Rician fading, two-wave with diffuse power fading.

On the channel capacity of SSC diversity system in η–μ and κ–μ fading environments

“…The infinite series in (12), (14), (15) and (16) can be truncated, and analyses are carried out in the appendix to determine the upper bound of the truncation error for each of those series. Specifically, the upper bound, X 1−Eup , of the truncation error resulting from truncating the infinite series in (12) and (15) at the Kth term is derived in Appendix A.3 as…”

“…When = m/2, and Á → 1 in format 1 or Á → 0 in format 2 (i.e., H = 0, h = 1), (2), (12), (14), (15) and (16) reduce, after some manipulations, to the corresponding expressions for the Nakagami-m fading channels, where m is the Nakagami-m parameter. The corresponding expressions for Rayleigh fading and One-sided Gaussian can be derived by setting m = 1 and m = 0.5 in the Nakagami-m expressions, respectively.…”

“…Integer or integer plus one half values of . When is an integer value, the integrals Y 1 and Y 2 in (32) can be evaluated by following the same process used to obtain (15) and (16) as …”

“…This happened regardless of the SNR of the alternative branch. Several papers have been published regarding the performance of SSC diversity over different models of fading channels including [4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Adaptive transmission, in which the transmitter alters specific parameters of the transmitted signal as the channel condition varies, is yet another effective method that can be utilized to better the system performance [18].…”

On the performance analysis of SSC diversity system overη–μfading channels

“…The performance of SSC was considered in Spalevic, Panic, Dolicanin, Stefanovic, and Mosic (2010), Panić, Spalević, Anastasov, Stefanović, and Petrović (2011) over correlated α-μ fading with cochannel interference. The performance of noncoherent M-ary frequency shift keying (MFSK) was analyzed in Haghani, and Dashtestani (2012) in two wave with diffuse power (TWDP) fading with SSC. An SSC diversity system operating in correlated generalized-K (KG) fading was analyzed in R., and Sahu (2013).…”