NDLI: Subspace multiuser receivers for UWB communication systems

Content Provider	IEEE Xplore Digital Library
Author	Ping Liu Zhengyuan Xu Jin Tang
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. Eng., California Univ., Riverside, CA, USA (Ping Liu; Zhengyuan Xu; Jin Tang)
Abstract	In a typical impulse radio ultra-wideband (UWB) communication environment, transmitted signal carries user's information in pulse positions and undergoes fading from a number of propagation paths. A conventional RAKE receiver may explore path diversity for better performance, but is unable to suppress multiple access interference. Multiuser receiver can significantly improve detection performance. However, it requires channel state information. To seek this information, we adopt a channel input/output model that exhibits a structure similar to a code-division multiple access system. In particular, code matrices for each user can be defined from its unique time-hopping sequence. Then subspace technique is applied to estimate each channel after some necessary modification due to particular formats of defined inputs. Subsequently, zero-forcing and minimum mean-square-error receivers are designed, applicable for both uplink and downlink, and different from existing multiuser detection (MUD) methods that assume perfect channel knowledge.
Sponsorship	IEEE Microwave Theory and Techniques Soc. IEEE Northern Virginia Section
Starting Page	116
Ending Page	120
File Size	333782
Page Count	5
File Format	PDF
ISBN	0780381874
DOI	10.1109/UWBST.2003.1267814
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-11-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultra wideband communication RAKE receivers Fading Multiuser detection Ultra wideband technology Multipath channels Multiple access interference Channel state information Multiaccess communication Downlink
Content Type	Text
Resource Type	Article

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

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