ENERGY DETECTION OF UNKNOWN SIGNALS OVER COMPOSITE MULTIPATH/SHADOWING FADING CHANNELS

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SAMIMI H.

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Journal Paper

Paper Information

Journal: JOURNAL OF COMMUNICATION ENGINEERING Year:2013 | Volume:2 | Issue:1 Page(s): 1-12

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Title

ENERGY DETECTION OF UNKNOWN SIGNALS OVER COMPOSITE MULTIPATH/SHADOWING FADING CHANNELS

Author(s)

SAMIMI H. | Issue Writer Certificate

Keywords

ENERGY DETECTION

RAYLEIGH-LOGNORMAL DISTRIBUTION

SELECTION COMBINING

COMPOSITE FADING CHANNEL

Abstract

In this paper, the performance analysis of an energy detector is exploited over composite multipath/shadowing fading channels, which is modeled by Rayleigh-lognormal (RL) distribution. Based on an approximate channel model which was recently proposed by the author, the RL envelope probability density function (pdf) is approximated by a finite sum of weighted Rayleigh pdfs. Relying on this interesting feature, the performance of energy detector over RL fading channel is investigated and approximate closed-form expression is derived for the detection probability (Pd). Further, results are extended to diversity reception case, where selection diversity (SC) technique is adopted to improve the detection performance. Selection Diversity is one of the most simplest diversity techniques, in which, the receiver simply picks the signal with the largest SNR among the received signals. In this regard, an approximate closed-form expression is derived for the pdf of the resulting signal-to-noise ratio (SNR) of SC receiver. Using this approximated pdf, an analytical closed-form expression is derived for the Pd of energy detector with SC diversity. The presented analysis is validated by numerical and simulation results.

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APA: Copy

SAMIMI, H.. (2013). ENERGY DETECTION OF UNKNOWN SIGNALS OVER COMPOSITE MULTIPATH/SHADOWING FADING CHANNELS. JOURNAL OF COMMUNICATION ENGINEERING, 2(1), 1-12. SID. https://sid.ir/paper/335658/en

Vancouver: Copy

SAMIMI H.. ENERGY DETECTION OF UNKNOWN SIGNALS OVER COMPOSITE MULTIPATH/SHADOWING FADING CHANNELS. JOURNAL OF COMMUNICATION ENGINEERING[Internet]. 2013;2(1):1-12. Available from: https://sid.ir/paper/335658/en

IEEE: Copy

H. SAMIMI, “ENERGY DETECTION OF UNKNOWN SIGNALS OVER COMPOSITE MULTIPATH/SHADOWING FADING CHANNELS,” JOURNAL OF COMMUNICATION ENGINEERING, vol. 2, no. 1, pp. 1–12, 2013, [Online]. Available: https://sid.ir/paper/335658/en

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