e-journal

Density Function of the Received Signal in OFDM-based Distributed Detection Fusion System

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Probability density function (pdf) of the received signal is necessary for the distributed detection fusion when the unreliable channels between the local sensors and the fusion center are considered. Hitherto study has never been made on the statistical distribution of the demodulated OFDM signal over multipath fading channel. Modeling the OFDM system over the multi-path channel, we derived the pdf of the channel frequency domain impulse response by introducing the characteristic function.And the pdf of the demodulated OFDM signal on the receiver side is deduced based on the theory of spherically symmetric random vectors. In addition, an example of OFDM-based distributed detection fusion is presented to illustrate the application of the derived pdf. Simulations show that the fusion with signal statistic information generally does better than fusion without any signal statistic information, and achieves the same performance as the fusion with perfect channel state information if the channel signal-to-noise ratio is above 7 dB.

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Ketersediaan

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Informasi Detail

Judul Seri

Wireless Inf Networks

No. Panggil

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Penerbit

New York : Springer Science., 2015

Deskripsi Fisik

Int J Wireless Inf Networks (2015) 22:357–368

Bahasa

English

ISBN/ISSN

DOI 10.1007/s10776-0

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

(2015) 22

Subjek

JARINGAN INFORMASI

Info Detail Spesifik

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Pernyataan Tanggungjawab

deliza

Versi lain/terkait

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