NDLI: Analysis and comparison of Fractional Frequency Reuse schemes based on worst case Signal to Interference power Ratio in OFDMA uplink

Content Provider	IEEE Xplore Digital Library
Author	Hashima, S. Muta, O. Elnoubi, S. Alghoniemy, M. Shalaby, H. Frukawa, H. Mahmoud, I.
Copyright Year	2014
Description	Author affiliation: Alexandria Univ., Alexandria, Egypt (Elnoubi, S.; Alghoniemy, M.) \|\| Kyushu Univ., Fukuoka, Japan (Muta, O.; Frukawa, H.) \|\| Egypt-Japan Univ. of Sci. & Technol. (E-JUST), Alexandria, Egypt (Hashima, S.; Shalaby, H.) \|\| Eng. Dept., Egyptian Atomic Energy Authority, Inshas, Egypt (Mahmoud, I.)
Abstract	Fractional Frequency Reuse (FFR) is an efficient interference mitigation technique for modern cellular networks due to its low complexity, low coordination requirements and resource allocation flexibility. This work considers the use of FFR in the cellular uplink (UL). We analyze the uplink worst case Signal to Interference power Ratio (SIR) for sectored FFR and compare its results with those of strict FFR and Soft FFR. A closed form expression is derived analytically for worst SIR and best inner radius. This analytical technique is utilized to configure a FFR solution for the TIL of Orthogonal Frequency Division Multiple Access (OFDMA) cellular systems. The analysis is performed using two-tiers cellular network with uniform user density and for three different cases of FFR, sectored FFR, Soft Frequency Reuse (SFR), and strict FFR with Frequency Reuse Factor (FRF)= 3 and FRF= 4. Also the effect of power control exponent on those FFR schemes is studied. The inner radius configuration depends on equalizing the worst SIR for both inner and outer edges of the cell. Numerical results show that sectored FFR without power control yields the highest SIR followed by strict FFR with FRF= 4. Power control exponent does not affect FFR with reuse three but strongly affects SFR and FRF= 4 as its increase reduces its SIR and inner radius. Sectored FFR without power control have the highest SE, hence sectored FFR highly balances the needs of interference reduction and resource efficiency but at the expense of increased system complexity.
Sponsorship	IEEE Commun. Soc.
Starting Page	1
Ending Page	6
File Size	26668972
Page Count	6
File Format	PDF
ISBN	9781479912971
DOI	10.1109/WTS.2014.6835023
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-04-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Base stations OFDM Inter cell interference Interference power control factor Mobile communication strict FFR Equations sectored FFR Power control Worst case SIR Uplink power control exponent SFR
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