NDLI: Evaluating mobile phone handoff behavior using chi-square statistical test

Content Provider	IEEE Xplore Digital Library
Author	Rajput, S.A. Pandya, A.S. Saxena, S. Ostroff, S.
Copyright Year	2008
Description	Author affiliation: Nova Southeastern Univ., Fort Lauderdale (Rajput, S.A.)
Abstract	Mobile networks reuse frequency bands based on a color map to increase the capacity of the network. A handoff should occur when a mobile unit moves from the influence of one base station with weaker signal into another's that has stronger signal. Handoff behavior of all units is an important factor in quality of service of a mobile phone service. Handoff decisions, also called mobility decisions, are made by mobile phone based on the observed power from base stations. Premature, delayed or exceedingly sensitive decisions are considered poor decisions. Excessive poor decisions result in degradation of service quality in otherwise a healthy mobile system. Conventional research focuses on improving hand-off algorithms. Most of the published work on verification of effectiveness of handoff algorithms is analytical or focuses on data collected under pristine laboratory conditions. A unit that makes good mobility decisions, theoretically or in the laboratory, may not behave as expected in the real world however. We propose a process of evaluating hand off behavior using large amount of diagnostic phone data collected in the real world that is used for identification of adverse trends or aberrant behavior of various models. In this paper, we discuss a chi-square statistical test to evaluate the performance of specific mobile unit model by comparing the behavior of a test mobile unit against a well- established behavior profile. If the behavior of the test model deviates significantly from the well-established profile, it is considered deficient in its handoff behavior that deserves further analysis. The test was developed in such a way that a large amount of units can quickly be tested. The same test can be used to compare performance of all mobile phones in one region to performance of same mobile phones in other regions. Furthermore, our test is useful in determining difference of handoff behavior when the mobile units are moving in opposite directions.
Starting Page	372
Ending Page	377
File Size	303780
Page Count	6
File Format	PDF
ISBN	9781424418831
DOI	10.1109/SECON.2008.4494322
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-04-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mobile handsets Testing Base stations Land mobile radio cellular systems Laboratories Frequency division multiplexing Time division multiplexing Transceivers Educational institutions Art
Content Type	Text
Resource Type	Article

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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
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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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