M-ary NCFSK with S+N selection combining in Rician fading

Haghani, Sasan; Beaulieu, N.C.

doi:10.1109/tcomm.2006.869806

Cited by 13 publications

(14 citation statements)

References 9 publications

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“…Thus, choosing the largest output in the S + N SC receiver is equivalent to choosing the branch which is mostly affected by noise, resulting in inferior performance compared to classical SC. The same phenomenon is observed for Rician fading [10]. The same behavior can be observed comparing the performance of S + N SC Model 2 and classical SC in i.n.d TWDP fading where classical SC outperforms S + N SC Model 2 in the small SNR region.…”

Section: Numerical Examples and Discussionsupporting

confidence: 78%

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Bit Error Rate of Noncoherent MFSK with S+N Selection Combining in Two Wave with Diffuse Power Fading

Haghani

2011

2011 IEEE Global Telecommunications Conference - GLOBECOM 2011

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The performance of noncoherent M -ary frequencyshift keying (MFSK) with L branch signal-plus-noise (S + N ) selection combining (SC) in two wave with diffuse power (TWDP) fading is studied. The fading on the diversity branches are assumed to be independent but not necessarily identically distributed. Two S + N SC receiver structures are examined and for each receiver a tractable bit error rate expression is derived. The effects of fading parameters on the relative performances of S + N SC and classical SC receivers are studied. Monte Carlo simulation results are presented to validate the obtained theoretical results.Index Terms-Diversity combining techniques, fading channels, noncoherent frequency-shift keying, Rayleigh fading, Rician fading, selection combining, two wave with diffuse power fading.

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Section: Numerical Examples and Discussionsupporting

confidence: 78%

“…In [9], two new S + N SC receivers were introduced and their performances were analyzed in i.i.d Rayleigh fading. The performances of S + N SC receivers in independent but not necessarily identical Rayleigh and Rician fading channels (i.n.d) were studied in [10].…”

Section: Introductionmentioning

confidence: 99%

Bit Error Rate of Noncoherent MFSK with S+N Selection Combining in Two Wave with Diffuse Power Fading

Haghani

2011

2011 IEEE Global Telecommunications Conference - GLOBECOM 2011

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“…Further, following the approach by Haghani and Beaulieu [13,14], we substitute x/N 0 with tanu to convert the integral into a finite range one so that subsequent numerical integration is possible…”

Section: Discussionmentioning

confidence: 99%

“…where p ¼ 4q 2 /(1 + q 2 ) 2 , and examine whether postdetection SC scheme always results in lesser error rates like Rayleigh [11] or Rician [14] fading channels. Fig.…”

Section: Comparison With Predetection Scmentioning

confidence: 99%

Symbol error probability of non-coherent M-ary frequency shift keying with postdetection selection and switched combining over Hoyt fading channel

Chandra¹,

Bose

Bose³

2012

IET Commun.

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For mitigating the deleterious effects caused by time-varying multipath fading, most of the modern digital wireless systems employ some sort of diversity combining. Combining of the different diversity branches, however, may be performed either before demodulation (predetection combining), or after it (postdetection combining). It has been shown earlier that postdetection schemes outperform their predetection counterparts for Rayleigh and less-severe-than Rayleigh (e.g. Rician)-fading channels. In this study, the authors consider Hoyt fading that characterises wireless environments experiencing moresevere-than Rayleigh fading, and compare error performance of postdetection combining with the results available for predetection combining. In particular, two of the combining variants namely selection combining and switched combining are investigated, and symbol error probability of a non-coherent M-ary frequency shift keying receiver is derived for independent but not necessarily identical diversity branches. The comparison reveals that postdetection schemes perform better than predetection combiners when the average branch signal-to-noise ratio (SNR) exceeds some crossover SNR.

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“…Moreover, the SC technique is especially suitable in noncoherent communications because instead of selecting the largest signal-tonoise ratio as in coherent systems, the signal branch with the largest signal-plus-noise power can be selected. Due to these advantages, the SC scheme for binary noncoherent frequency-shift keying (FSK) in point-to-point communications has also been well studied in the literature [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Selection combining for noncoherent decode-and-forward relay networks

Nguyen

2011

J Wireless Com Network

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This paper studies a new decode-and-forward relaying scheme for a cooperative wireless network composed of one source, K relays, and one destination and with binary frequency-shift keying modulation. A single threshold is employed to select retransmitting relays as follows: a relay retransmits to the destination if its decision variable is larger than the threshold; otherwise, it remains silent. The destination then performs selection combining for the detection of transmitted information. The average end-to-end bit-error-rate (BER) is analytically determined in a closed-form expression. Based on the derived BER, the problem of choosing an optimal threshold or jointly optimal threshold and power allocation to minimize the end-to-end BER is also investigated. Both analytical and simulation results reveal that the obtained optimal threshold scheme or jointly optimal threshold and power-allocation scheme can significantly improve the BER performance compared to a previously proposed scheme.

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M-ary NCFSK with S+N selection combining in Rician fading

Cited by 13 publications

References 9 publications

Bit Error Rate of Noncoherent MFSK with S+N Selection Combining in Two Wave with Diffuse Power Fading

Bit Error Rate of Noncoherent MFSK with S+N Selection Combining in Two Wave with Diffuse Power Fading

Symbol error probability of non-coherent M-ary frequency shift keying with postdetection selection and switched combining over Hoyt fading channel

Selection combining for noncoherent decode-and-forward relay networks

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