NDLI: Energy-Efficient Flexible Inter-Frequency Scanning Mechanism for Enhanced Small Cell Discovery

Content Provider	IEEE Xplore Digital Library
Author	Prasad, A. Lunden, P. Tirkkonen, O. Wijting, C.
Copyright Year	2013
Description	Author affiliation: Sch. of Electr. Eng., Aalto Univ., Aalto, Finland (Prasad, A.; Tirkkonen, O.) \|\| Nokia Res. Center, Nokia Group, Nokia, Finland (Lunden, P.; Wijting, C.)
Abstract	Heterogeneous Network deployments are one of the key enablers in providing ubiquitous coverage and capacity enhancements for satisfying high data rate and Quality of Service requirements for LTE-Advanced networks. In this paper we propose an energy efficient small cell discovery mechanism for heterogeneous networks by means of flexible inter-frequency scanning. We also propose the concept of threshold speed for inter-frequency scanning, above which mobile terminals should not search for or connect to inter-frequency small cells. Above threshold speed, the small cell connection opportunities become so short that they offer very limited benefit. The scheme is evaluated using extensive simulations conducted on HetNet scenario specified in 3GPP LTE-A system settings. Shortcomings of the currently standardized mechanism are analyzed and advantages of the proposed scheme are presented. Numerical analysis is done based on utilization of available offloading opportunities as well as savings in terminal battery power consumption. The results show that with the flexible scheme, significant power savings can be achieved with acceptable tradeoffs in offloading.
Sponsorship	IEEE Vehicular Technol. Soc.
Starting Page	1
Ending Page	5
File Size	192183
Page Count	5
File Format	PDF
ISBN	9781467363372
ISSN	15502252
DOI	10.1109/VTCSpring.2013.6692547
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-02
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Handover Mobile communication Mathematical model Equations Long Term Evolution
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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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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