NDLI: A DSP-based DS-CDMA multiuser receiver employing partial parallel interference cancellation

Content Provider	IEEE Xplore Digital Library
Author	Correal, N.S. Buehrer, R.M. Woerner, B.D.
Copyright Year	1983
Abstract	The implementation of advanced DS-CDMA receivers based on multiuser detection principles is becoming a reality thanks to the combination of an improved understanding of the theoretical basis of multiuser detection and advances in digital, mixed-signal, and RF technologies. Due to their lower complexity, subtractive interference cancellation approaches are attractive for the practical implementation of multiuser detection. In a parallel interference cancellation receiver, it is practical to use the soft outputs of a matched filter bank for amplitude estimation. A bias arises in the decision statistics, however, due to imperfect estimation and interference cancellation. In this paper, the source of the bias is explicitly recognized, and a partial interference cancellation scheme that mitigates the negative effects of biased estimation and significantly improves system performance is proposed. A practical real-time algorithm that significantly reduces the implementation complexity of this scheme without sacrificing performance is then derived. To facilitate a software radio implementation, the signal processing complexity of the approach is characterized. The real-time processing algorithm is tested via implementation in software on a floating-point general-purpose DSP. The prototype includes a flexible software-based architecture which performs IF sampling and uses digital downconversion prior to baseband processing. The hardware test setup is described, and the results are presented and compared with simulation and analytical results. The experimental results confirm the simulation and analytical results which show large performance gains over the conventional matched filter.
Starting Page	613
Ending Page	630
Page Count	18
File Size	598761
File Format	PDF
ISSN	07338716
Volume Number	17
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiaccess communication Interference cancellation Multiuser detection Signal processing algorithms Matched filters Analytical models Radio frequency Amplitude estimation Statistics System performance
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Iterative multiuser detection with integrated channel estimation for coded DS-CDMA

Multiuser detection of DS-CDMA signals using partial parallel interference cancellation in satellite communications

Analytical performance analysis of the linear multistage partial PIC receiver for DS-CDMA systems

Iterative Joint Channel Estimation and Multiuser Detection for DS-CDMA in Frequency-Selective Fading Channels

Iterative CDMA Multiuser Receiver With Soft Decision-Directed Channel Estimation

A hypothesis testing approach to blind DS-CDMA user acquisition, identification, and detection via code-constrained successive cancellation

Comments on Partial parallel interference cancellation for CDMA

Multistage weighted interference cancellation with receiver diversity for DS-CDMA

A Blind RAKE Receiver With Robust Multiuser Interference Cancellation for DS/CDMA Communications

A DSP-based DS-CDMA multiuser receiver employing partial parallel interference cancellation

Similar Documents

Iterative multiuser detection with integrated channel estimation for coded DS-CDMA

Multiuser detection of DS-CDMA signals using partial parallel interference cancellation in satellite communications

Analytical performance analysis of the linear multistage partial PIC receiver for DS-CDMA systems

Iterative Joint Channel Estimation and Multiuser Detection for DS-CDMA in Frequency-Selective Fading Channels

Iterative CDMA Multiuser Receiver With Soft Decision-Directed Channel Estimation

A hypothesis testing approach to blind DS-CDMA user acquisition, identification, and detection via code-constrained successive cancellation

Comments on Partial parallel interference cancellation for CDMA

Multistage weighted interference cancellation with receiver diversity for DS-CDMA

A Blind RAKE Receiver With Robust Multiuser Interference Cancellation for DS/CDMA Communications

A DSP-based DS-CDMA multiuser receiver employing partial parallel interference cancellation