Throughput and Power Efficiency Analysis Considering Traffic Loads in FFR with Movable Boundary

ABSTRACT

In Fractional frequency reuse (FFR) technique, the available physical resource blocks are reused among different cells in a manner that co-channel interference and/or inter-cell interference effect is reduced. However, when the resources are highly utilized, the sharing of these resources becomes exhausted and/or limited, and this leads to a high interference and hence high call blocking probability. Therefore, this paper proposes a call admission control in FFR to improve the performance of the FFR-based cellular system. The results of the two quality of service (QoS) constraints, the call blocking probabilities and the resource utilizations for users are used for some design criteria of the cell inner/outer area to maximize the throughput and hence for the evaluation of the system power efficiency.

KEYWORDS:

• Call admission control
• Fractional frequency reuse
• Inter-cell interference
• One-dimensional Markov Chain
• Power efficiency
• Quality of service

DISCLOSURE STATEMENT

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the Korea University [grant number K1709871].

Notes on contributors

Mustafa H. Mohsini

Mustafa Habibu Mohsini received his master's degree in computer science in 2014 from Korea University, South Korea. He is currently a PhD candidate in the Department of Computer Convergence Software at Korea University. His research interests include performance evaluation of communication networks, traffic analysis, and energy efficiency and interference management.

E-mail: [email protected]

Seung-Yeon Kim

Seung-Yeon Kim received his PhD degree in electronics and information engineering in 2012 from Korea University, Korea. He is currently an assistant professor in the Department of Computer Convergence Software at Korea University. He has participated in various research projects involving an IMT-advanced system, cognitive radio, and interference management. His research interests include performance evaluation of communication networks.

E-mail: [email protected]

Choong-Ho Cho

Choong-Ho Cho received his PhD degree in computer science in 1989 from INSA de Lyon University, France. He is currently a professor at Korea University in the Department of Computer Convergence Software since 1994. He has participated in various research projects involving an IMT-advanced system, cognitive radio, interference management, energy management systems, and heterogeneous networks. His research interests include performance evaluation of communication networks, energy efficiency, heterogeneous networks, internet business, ICT convergence, building/home energy management system, smart city platform.

Corresponding Author E-mail: [email protected]