NDLI: A reduced complexity RAKE receiver with decision feedback equalization for DS/SS communication over multipath fading channels

Content Provider	IEEE Xplore Digital Library
Author	Wuyts, K. Moeneclaey, H.
Copyright Year	1995
Description	Author affiliation: Commun. Eng. Lab., Ghent Univ., Belgium (Wuyts, K.; Moeneclaey, H.)
Abstract	Spread spectrum communication over a multipath fading channel usually outperforms narrowband communication because the number of resolvable paths is higher when the signal bandwidth is larger. Unfortunately, the complexity of the optimum RAKE receiver is proportional to the ratio of the channel delay spread to the chip duration, which might be very large when the delay spread exceeds the symbol duration. We introduce a reduced complexity RAKE receiver, followed by decision feedback equalization. Assuming the multipath intensity profile of the channel consisting of distinct clusters with random delays (as is the case for the HF radio channel), we compare the performance of the proposed receiver with the performances of the optimum RAKE receiver for spread spectrum communication and the receiver for narrowband communication. Although the proposed receiver structure has a performance loss of a few dB as compared to the optimum RAKE receiver, we find that it still outperforms narrowband communication.
Starting Page	1359
Ending Page	1363
File Size	371759
Page Count	5
File Format	PDF
ISBN	0780324862
DOI	10.1109/ICC.1995.524426
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-06-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Multipath channels Narrowband Delay RAKE receivers Spread spectrum communication Signal resolution Bandwidth Decision feedback equalizers Performance loss
Content Type	Text
Resource Type	Article

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