NDLI: Performance of pilot reuse in multi-cell Massive MIMO

Content Provider	IEEE Xplore Digital Library
Author	Hong Yang Marzetta, T.L.
Copyright Year	2015
Description	Author affiliation: Bell Labs., Alcatel-Lucent, Murray Hill, NJ, USA (Hong Yang; Marzetta, T.L.)
Abstract	Pilot reuse in multiple cell Massive MIMO induces coherent inter-cell interference that does not disappear with large numbers of antennas. A simple way to mitigate pilot contamination is to use a pilot reuse factor that is greater than one, which surrounds the home cell by one or more rings of non-contaminating cells. The penalty for this measure is that training consumes an increasing fraction of the slot. We perform comprehensive multiple cell semi-analytical simulations for various scenarios in order to determine the optimum pilot reuse factor. We find that in dense urban deployments, the relatively small cell size combined with low user mobility dictates pilot reuse seven. Conversely in suburban deployments pilot reuse three is optimal. Our conclusions are at variance with others who advocate pilot reuse one, which we attribute to a great extent to the fact that our performance criterion is 95% likely per user throughput rather than sum throughput.
Starting Page	157
Ending Page	161
File Size	207590
Page Count	5
File Format	PDF
ISBN	9781479985050
DOI	10.1109/BlackSeaCom.2015.7185106
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-05-18
Publisher Place	Romania
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading OFDM Interference Throughput User throughput Pilot reuse Multicell Power control Pilot contamination Coherence Massive MIMO MIMO Wrap-around cluster
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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