NDLI: Performance analysis of DS/SS system according to the loop gain under the Nakagami-m fading channel

Content Provider	IEEE Xplore Digital Library
Author	Moon-Kee Jang Jin-Soo Park
Copyright Year	2000
Description	Author affiliation: Dept. of Electron. Eng., Chongju Univ., South Korea (Moon-Kee Jang)
Abstract	The performance of a direct sequence spread spectrum acoustic communications signal, operating over a multi-path Nakagami fading channel, is investigated when corrupted by phase noise as well as additive white Gaussian noise (AWGN). The phase noise arises from phase locked loop (PLL) dynamics and results in imperfect receiver phase estimates whereby the phase errors assume Tikhonov densities. The phase estimates are used by a multi-path combining RAKE receiver for demodulation. Approximate upper-bounds on the bit error probability are obtained and evaluated for different combinations of channel parameters and for various values of the average loop signal-to-noise ratio (SNR). Results indicate that the PLL loop gain was increased from 5 dB to 10 dB, the performance of system was increased by 6 dB, when increased from 5 dB to 10 dB, increased by 0.9 dB, when increased from 10 dB to 20 dB, increased by 0.8 dB, and when from 20 dB to 30 dB, increased by 0.2 dB. With the above data, it was shown that the limit of gain required in the PLL of the receiver is 30 dB.
Starting Page	1239
Ending Page	1242
File Size	304458
Page Count	4
File Format	PDF
ISBN	0780365518
DOI	10.1109/OCEANS.2000.881769
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance analysis Performance gain Phase locked loops AWGN Fading Phase noise Phase estimation Spread spectrum communication Additive white noise RAKE receivers
Content Type	Text
Resource Type	Article

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