Variable rate non coherent MFSK modulation over Nakagami fading channels

Fadel F. Digham; Mohamed Slim Alouini

Variable rate non coherent MFSK modulation over Nakagami fading channels

Fadel F. Digham^*, Mohamed Slim Alouini

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

3 Scopus citations

Abstract

We propose a new adaptive scheme for power limited systems. For such systems, we offer a variable-rate and fixed-power non-coherent M-ary frequency shift keying (NC-MFSK) modulation scheme and analyze its performance over Nakagami fading channels. We recently addressed the system performance from the average link spectral efficiency, the average bit error rate (BER), and the probability of outage perspectives assuming that perfect channel estimates are available at the transmitter within a permissible delay. In this paper, we study the system performance in the case of outdated estimates. It is shown that only the average BER gets affected by outdated estimates. Our analysis shows that the system is insensitive to normalized delays f_dτ up to 10^-2 where f_d is the doppler frequency and τ is the time delay. We then propose an adaptive switching thresholds system to better mitigate the effect of the delay.

Original language	English (US)
Pages	861-865
Number of pages	5
State	Published - 2002
Externally published	Yes
Event	GLOBECOM'02 - IEEE Global Telecommunications Conference - Taipei, Taiwan, Province of China Duration: Nov 17 2002 → Nov 21 2002

Other

Other	GLOBECOM'02 - IEEE Global Telecommunications Conference
Country/Territory	Taiwan, Province of China
City	Taipei
Period	11/17/02 → 11/21/02

ASJC Scopus subject areas

Electrical and Electronic Engineering
Global and Planetary Change

Cite this

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title = "Variable rate non coherent MFSK modulation over Nakagami fading channels",

abstract = "We propose a new adaptive scheme for power limited systems. For such systems, we offer a variable-rate and fixed-power non-coherent M-ary frequency shift keying (NC-MFSK) modulation scheme and analyze its performance over Nakagami fading channels. We recently addressed the system performance from the average link spectral efficiency, the average bit error rate (BER), and the probability of outage perspectives assuming that perfect channel estimates are available at the transmitter within a permissible delay. In this paper, we study the system performance in the case of outdated estimates. It is shown that only the average BER gets affected by outdated estimates. Our analysis shows that the system is insensitive to normalized delays fdτ up to 10-2 where fd is the doppler frequency and τ is the time delay. We then propose an adaptive switching thresholds system to better mitigate the effect of the delay.",

author = "Digham, {Fadel F.} and Alouini, {Mohamed Slim}",

year = "2002",

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T1 - Variable rate non coherent MFSK modulation over Nakagami fading channels

AU - Digham, Fadel F.

AU - Alouini, Mohamed Slim

PY - 2002

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N2 - We propose a new adaptive scheme for power limited systems. For such systems, we offer a variable-rate and fixed-power non-coherent M-ary frequency shift keying (NC-MFSK) modulation scheme and analyze its performance over Nakagami fading channels. We recently addressed the system performance from the average link spectral efficiency, the average bit error rate (BER), and the probability of outage perspectives assuming that perfect channel estimates are available at the transmitter within a permissible delay. In this paper, we study the system performance in the case of outdated estimates. It is shown that only the average BER gets affected by outdated estimates. Our analysis shows that the system is insensitive to normalized delays fdτ up to 10-2 where fd is the doppler frequency and τ is the time delay. We then propose an adaptive switching thresholds system to better mitigate the effect of the delay.

AB - We propose a new adaptive scheme for power limited systems. For such systems, we offer a variable-rate and fixed-power non-coherent M-ary frequency shift keying (NC-MFSK) modulation scheme and analyze its performance over Nakagami fading channels. We recently addressed the system performance from the average link spectral efficiency, the average bit error rate (BER), and the probability of outage perspectives assuming that perfect channel estimates are available at the transmitter within a permissible delay. In this paper, we study the system performance in the case of outdated estimates. It is shown that only the average BER gets affected by outdated estimates. Our analysis shows that the system is insensitive to normalized delays fdτ up to 10-2 where fd is the doppler frequency and τ is the time delay. We then propose an adaptive switching thresholds system to better mitigate the effect of the delay.

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M3 - Paper

AN - SCOPUS:0036969434

SP - 861

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T2 - GLOBECOM'02 - IEEE Global Telecommunications Conference

Y2 - 17 November 2002 through 21 November 2002

ER -

Variable rate non coherent MFSK modulation over Nakagami fading channels

Abstract

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ASJC Scopus subject areas

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