NDLI: List Sequential MIMO Detection: Noise Bias Term and Partial Path Augmentation

Content Provider	IEEE Xplore Digital Library
Author	Bittner, S. Zimmermann, E. Rave, W. Fettweis, G.
Copyright Year	2006
Description	Author affiliation: Vodafone Chair Mobile Communications Systems, Technische Universität Dresden, D-01062 Dresden, Germany (Zimmermann, E.; Rave, W.; Fettweis, G.) \|\| Vodafone Chair Mobile Communications Systems, Technische Universität Dresden, D-01062 Dresden, Germany. Email: bittner@ifn.et.tu-dresden.de (Bittner, S.)
Abstract	Near-capacity performance can be achieved in multiple-antenna systems by using a list sequential (LISS) detector for iterative equalization. Path augmentation is known to increase the performance of this detector, while a so-called bias term has been used to reduce its computational complexity, in applications other than MIMO detection. In this work, we extend the LISS MIMO detector [1] to incorporate different implementations of the bias term. We show that following the traditional approach of using an auxiliary stack for this purpose leads to a strong narrowing of the search tree, but also to a significant performance degradation, due to a reduced quality of the detector soft output. We therefore propose to use a so-called noise bias term instead, which can be implemented with negligible effort, significantly reduces the size of the search tree, but allows for almost retaining detector performance. Finally, we demonstrate that the extension of only a small fraction of the incomplete stack entries is sufficient to leverage the full gains of path augmentation, thus enabling further substantial savings in computational complexity.
Starting Page	1300
Ending Page	1305
File Size	195859
Page Count	6
File Format	PDF
ISBN	1424403553
ISSN	81649547
DOI	10.1109/ICC.2006.254928
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-11
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Detectors Computational complexity Receiving antennas Mobile communication Degradation Noise reduction Radio frequency Transmitting antennas Radio transmitters
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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