NDLI: Downlink Ergodic Rate Analysis for Virtual Cell Based Cloud Radio Access Networks

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Ming Cheng Jun-Bo Wang Yongpeng Wu Min Lin
Abstract	Cloud Radio Access Network (CRAN) is a promising approach to cope with the challenges of next generation mobile communications. This paper studies the downlink ergodic rate of a (N, K) virtual cell-based CRAN, in which each mobile station (MS) selects the N closest remote radio heads (RRHs) to form its virtual cell and the K (K ≤ N) closest RRHs will serve the target MS cooperatively with a total transmit power constraint. Using the stochastic geometry, the locations of RRHs and MSs are modeled as two independent Poisson point processes, respectively. Then, a computationally tractable integral expression is derived for the downlink ergodic rate of the (N, K) virtual cell-based CRAN. The analytical expression indicates that in the interference limited regime, the ergodic rate only relies on the MS to RRH intensity ratio and is independent with the individual intensity of either the RRH or the MS. Therefore, without deteriorating the downlink ergodic rate significantly, the number of simultaneously served MSs can be improved by increasing the RRH intensity. Specially, when there is only one RRH in each virtual cell, the analytical expression reduces to the ergodic rate expression for the conventional cellular networks. Numerical results indicate that the cooperation among multiple RRHs within each virtual cell can improve the downlink ergodic rate significantly.
e-ISSN	21693536
DOI	10.1109/ACCESS.2017.2728016
Journal	IEEE Access
Volume Number	5
Language	English
Publisher	IEEE
Publisher Date	2017-01-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Electrical Engineering. Electronics. Nuclear Engineering Cloud Radio Access Network (cran) Virtual Cell Downlink Ergodic Rate Poisson Point Process Maximum Ratio Transmission (mrt)
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