NDLI: Autonomous Spectrum Sharing for Mixed LTE Femto and Macro Cells Deployments

Content Provider	IEEE Xplore Digital Library
Author	Andrews, M. Capdevielle, V. Feki, A. Gupta, P.
Copyright Year	2010
Abstract	We consider the problem of sharing spectrum between different base stations in an OFDM network where some cells have a small radius. Such scenarios will become increasingly common in fourth generation networks where the need for ubiquitous high-speed coverage will lead to an increased use of small cells as well as indoor femtocells. Our aim is to devise autonomous algorithms for small cells and femtocells to choose spectrum so that they can achieve high data rates without causing interference to users in the traditional macro cells. We present a number of algorithms that perform combinations of frequency and time sharing based on the channel conditions reported by the mobile users. Our schemes bear some resemblance to the traditional 802.11 MAC algorithms. However, they differ in the fact that they are able to use better information about channel conditions from the mobiles and they are allowed to adjust the amount of spectrum that they are using. We evaluate our schemes using a platform that combines a physical-layer ray-tracing tool for indoor and outdoor environments with an upper layer OFDM simulation tool. We believe that this type of simulation capability will become increasingly important as cellular networks target the provision of high-speed performance in dense urban environments. Our results suggest that user channel quality measurements can be used to set the level of sharing between femtocells and macrocells and that finding the correct level of sharing is important for optimal network performance.
Starting Page	1
Ending Page	5
File Size	119733
Page Count	5
File Format	PDF
ISBN	9781424467396
e-ISBN	9781424467396
DOI	10.1109/INFCOMW.2010.5466611
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Macrocell networks OFDM Access protocols Interference Bandwidth Ray tracing Femtocells Resource management Multiaccess communication Collision avoidance
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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