The Influence of the Wideband Modulation over Fast#br#
Fading in TDMA Cellular Systems

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 1998, Vol. 21 ›› Issue (4): 26-29.

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The Influence of the Wideband Modulation over Fast#br# Fading in TDMA Cellular Systems

Yang Hongwen

School of Telecommunication Engineering, Beijing University ofPosts and Telecommunications, Beijing 100876

Received:1997-12-18 Online:1998-09-10
Supported by:

Abstract

Abstract: Wideband modulation can reduce the fast fade marginrequired for TDMA cellular system design for the reason that signal fluctuationwilldecrease as the bandwidth increasing.Computer simulations conclude that, with wideband modulation, the received signal envelope have a log-normal probabilitydensity rather than commonly supposed Rayleigh density.It is also observed thatthe system without frequency hopping can profit more from wide band modulation.

Key words: mobile cellular communications, TDMA, fast fading, frequency hopping

CLC Number:

TN929.5

Yang Hongwen. The Influence of the Wideband Modulation over Fast#br# Fading in TDMA Cellular Systems[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 1998, 21(4): 26-29.

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The Influence of the Wideband Modulation over Fast#br# Fading in TDMA Cellular Systems

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