NDLI: Substandard cell phones: impact on network quality and a new method to identify an unlicensed IMEI in the network

Content Provider	IEEE Xplore Digital Library
Author	Loureiro, A.J.F. Gallegos, D. Caldwell, G.
Copyright Year	1979
Description	The increase of counterfeit mobile phones in wireless networks on emerging markets is one of the reasons for the degradation in spectral efficiency. In some countries the sales of counterfeit/ substandard phones could represent as much as 15-20 percent of the market [1]. The motivation of this article is to have a better understanding of the impact of counterfeit phones on network performance and present a solution to identify these mobile devices. Several laboratory tests and implementations emulating a real cellular coverage were performed. Results showed that counterfeit phones have degraded quality service for the user and also impact other subscribers (14 dB sensitivity difference from the original). Additionally, higher dropped calls and access failures rates (up to three times more) were observed. A new method that can identify, notify the user of, and block counterfeit devices was implemented and tested in the laboratory. This article presents several aspects that impact network reliability, as well as an innovative method to manage the access of substandard devices to cellular networks that can bring more efficient usage of spectrum resources.
Starting Page	90
Ending Page	96
Page Count	7
File Size	273118
File Format	PDF
ISSN	01636804
Volume Number	52
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Handover Sensitivity Radio frequency Mobile communication Receivers Interference Celllular phones Cellular networks
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Electrical and Electronic Engineering Computer Science Applications

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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