NDLI: On the Rate Gap Between Multi- and Single-Cell Processing Under Opportunistic Scheduling

Content Provider	IEEE Xplore Digital Library
Author	Bang, H.J. Gesbert, D. Orten, P.
Copyright Year	1991
Abstract	Base station (BS) coordination is a key technique to handle intercell interference (ICI) in cellular networks. Nevertheless, recent work on scheduling indicates that the value of coordination is less prominent when the number of users grows large. More specifically, the loss in sum rate due to ICI in uncoordinated networks can be made arbitrarily small as the number of users goes to infinity. However, the gap in performance for a finite number of users has remained unknown so far. From this perspective we study the gains of multicell zero-forcing beamforming (ZFBF) on the downlink of a Wyner-type network. We first identify the beamforming weights and the optimal scheduling policy under a per-base power constraint. To compare ZFBF with single-cell processing (SCP) we focus on the extra number of users that is needed per cell to compensate for ICI. Specifically, we find the number of users n₁ with ZFBF and n₂ with SCP that gives the same mean postscheduling signal-to-interference-plus-noise ratio (SINR) as an interference free network with n users. The results show that the ratio [(n₂)/(n₁)] grows logarithmically with n. Finally, we demonstrate that the difference in sum-rate between SCP and multicell ZFBF goes to zero as O([(lnlnn)/(lnn)]). As a consequence of the slow convergence there is a significant gain with multicell ZFBF for all practical numbers of users.
Sponsorship	IEEE Signal Processing Society
Starting Page	415
Ending Page	425
Page Count	11
File Size	616089
File Format	PDF
ISSN	1053587X
Volume Number	60
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Optimal scheduling Signal to noise ratio Array signal processing Convergence Upper bound Electronic mail zero-forcing beamforming (ZFBF) Base station (BS) coordination multiuser scheduling
Content Type	Text
Resource Type	Article
Subject	Signal Processing 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

Multicell zero-forcing beamforming and multiuser scheduling

Greedy user selection for zero-forcing and MMSE multiuser beamforming with channel estimation errors

Zero-forcing based multiuser beamforming for coordinated Multi-Point transmission

Inter-cell coordinated beamforming with opportunistic scheduling

User Selection for Multiuser MIMO Downlink With Zero-Forcing Beamforming

Regularized Zero-Forcing for Multiantenna Broadcast Channels with User Selection

Two-path successive relaying with threshold-based opportunistic zero-forcing beamforming

Multicell Coordinated Scheduling With Multiuser Zero-Forcing Beamforming

Opportunistic Two-Stage Feedback and Scheduling for MIMO Downlink Systems

On the Rate Gap Between Multi- and Single-Cell Processing Under Opportunistic Scheduling

Similar Documents

Multicell zero-forcing beamforming and multiuser scheduling

Greedy user selection for zero-forcing and MMSE multiuser beamforming with channel estimation errors

Zero-forcing based multiuser beamforming for coordinated Multi-Point transmission

Inter-cell coordinated beamforming with opportunistic scheduling

User Selection for Multiuser MIMO Downlink With Zero-Forcing Beamforming

Regularized Zero-Forcing for Multiantenna Broadcast Channels with User Selection

Two-path successive relaying with threshold-based opportunistic zero-forcing beamforming

Multicell Coordinated Scheduling With Multiuser Zero-Forcing Beamforming

Opportunistic Two-Stage Feedback and Scheduling for MIMO Downlink Systems

On the Rate Gap Between Multi- and Single-Cell Processing Under Opportunistic Scheduling