NDLI: An efficient receiver scheme for downlink ZP-CDMA

Content Provider	Springer Nature Link
Author	Al kamali, F. S. Dessouky, M. I. Sallam, B. M. Abd El Samie, F. E.
Copyright Year	2009
Abstract	A signal transmitted through a wireless channel may be severely distorted by intersymbol interference (ISI) and multiple access interference (MAI). In this paper, we propose an efficient CDMA receiver based on frequency domain equalization (FDE) with a regularized zero forcing (RZF) equalizer and parallel interference cancellation with a unit clipper decision function (CPIC) to combat both the ISI and the MAI. We call this receiver the FDE-RZF-CPIC receiver. This receiver is suitable for downlink zero padding CDMA cellular systems. The effects of the decision function, the channel estimation, the number of cancelled users, and the user loading on the performance of the proposed receiver are discussed in the paper. The bit error rate (BER) of the data received by the proposed receiver is evaluated by computer simulations. The experimental results show that the proposed receiver provides a good performance, even with a large number of interfering users. At a BER of 10$^{−3}$, the performance gain of the proposed receiver is about 2 dB over the RAKE receiver with a clipper decision function and PIC in the half-loaded case (eight users) and is much larger in the full-loaded case (16 users).
Starting Page	259
Ending Page	268
Page Count	10
File Format	PDF
ISSN	00034347
Journal	Annales Des Télécommunications
Volume Number	64
Issue Number	3-4
e-ISSN	19589395
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-01-16
Publisher Place	Paris
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Downlink CDMA Decision functions PIC Zero padding Channel estimation R & D/Technology Policy Signal, Image and Speech Processing Information Systems and Communication Service Communications Engineering, Networks Information and Communication, Circuits Computer Communication Networks
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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