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General Information
    • ISSN: 1793-8244 (Print)
    • Abbreviated Title:  J. Adv. Comput. Netw.
    • Frequency: Semiyearly
    • DOI: 10.18178/JACN
    • Editor-in-Chief: Professor Haklin Kimm
    • Executive Editor: Ms. Cherry Chan
    • Abstracting/ Indexing: EBSCO, ProQuest, and Google Scholar.
    • E-mail: jacn@ejournal.net
    • APC: 500USD
Professor Haklin Kimm
East Stroudsburg University, USA
I'm happy to take on the position of editor in chief of JACN. We encourage authors to submit papers on all aspects of computer networks.

JACN 2016 Vol.4(2): 80-85 ISSN: 1793-8244
DOI: 10.18178/JACN.2016.4.2.208

A Novel Downlink Interference Management Mechanism for Two-Tier OFDMA Femtocell Networks

Gwo-Jong Yu and Hoai Nam Bui Khac

Abstract—In wireless broadband access networks, almost indoor environment encounters serious coverage problem due to non-line of sight transmission. To improve the coverage, femtocell has been introduced as a promising technology. However, the deployment of femtocells may introduce extra interference to macrocell base stations. An effective interference management mechanism is required to optimize the system performance. In this paper, a resource allocation algorithm is proposed to resolve the two-tier downlink interference problem. The proposed scheme combines fractional frequency reuse (FFR) in macrocell and a heuristic graph-based channel assignment algorithm in femtocell to reduce the interference problem. Simulation results reveal that the proposed approach significantly improves the system throughput of the two-tier OFDMA networks.

Index Terms—Femtocells, interference management, resource allocation, Frational Frequence Reuse (FFR).

Gwo-Jong Yu and Hoai Nam Bui Khac are with the Department of Computer Science and Information Engineering, Aletheia University, New Taipei City, 251 Taiwan (e-mail: yugj@mail.au.edu.tw, hoainam.bk2012@gmail.com).


Cite:Gwo-Jong Yu and Hoai Nam Bui Khac, "A Novel Downlink Interference Management Mechanism for Two-Tier OFDMA Femtocell Networks  ," Journal of Advances in Computer Networks vol. 4, no. 2, pp. 80-85, 2016.

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