Enhanced Fractional Frequency Reuse (EFFR) Technique in WiMAX Cellular Network
WiMAX is a broad band high speed wireless communication system which use cellular network topology to deploy services to different subscribers. One of the major problems of deploying WiMAX base stations is the signal interference caused by neighboring cells which causes redaction in cell coverage area and capacity. The standard of WiMAX allows several methods to overcome the interference problems such as frequency planning and Fractional Frequency Reuse (FFR) technique. In this paper we propose new design for FFR in urban area to mitigate inter-cell interference and efficiently use the available network resources. The new FFR with coordination of two types of subcarriers permutation (PUCS and band-AMC) is presented to enhance system performance. The frequency diversity and user diversity are considered as tradeoff between the user\'s behavior and available resources, the resources are dynamically assigned to users to ensure best utilization of the available network resource.
Keywords: WIMAX, network deployment, fractional frequency reuse, permutation technique.
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ABOUT THE AUTHORS
M. K. Salman
He received his M.Sc degrees in Computer Engineering from University of Technology in 2004. He was working as researcher in the Ministry of Science and Technology (MOST), and also he was project manager in IT Company in Iraq until 2011. His research interests focus on network deployment and wireless communication with emphasis on WiMAX networks. Now, he is studying to earn his Ph.D. degree in the Computer and Communication School of Engineering, University Malaysia Perlis (UniMAP).
R.B. Ahmed
He obtained his B. Eng in Electrical and Electronic Engineering from Glasgow University in 1994. He obtained his M.Sc and Ph.D. in 1995 and 2000, respectively, from the University of Strathclyde, UK. His research interests are on computer and telecommunication network modeling using discrete event simulators, optical networking, and coding and embedded system based on GNU/Linux for vision. He has five (5) years of teaching experience in Universiti Sains Malaysia. Since 2004, he has been working in Universiti Malaysia Perlis (UniMAP), where he is currently the Dean in the School of Computer and Communication Engineering and the Head of the Embedded Computing Research Cluster.
Abid Yahya
He earned his B.Sc. degree in Electrical and Electronic Engineering, major in Telecommunications, from the University of Engineering and Technology. Peshawar, Pakistan. Dr. Yahya began his career on a path that is rare among other research executives. He earned his M.Sc. and Ph.D. degrees in Wireless and Mobile systems in 2007 and 2010, respectively, from the Universiti Sains Malaysia, Malaysia. Currently, he is working in the School of Computer and Communication Engineering, Universiti Malaysia Perlis (UniMAP). His professional career outside the academia includes writing for international magazines and newspapers as a freelance journalist. He employed this combination of practical and academic experiences to a variety of consultancies for major corporations
Jaafar Adhab Al-Dhaibani
He earned his B.Sc. degree in Electrical and Electronic Engineering, major in Telecommunications, from the University of Technology, Baghdad, Iraq and earned his M.Sc. degree in Wireless Communications in 2002 from the University of Technology, Baghdad, Iraq. Engr. Adhab worked with ATDI Company for RF planning communication sites (IC telecom software). His researches interest is in wireless communication focusing on long term evolution (LTE-A), fourth generation (4G), Cooperative communications .Now, he is studying to earn his Ph.D. degree in the Computer and Communication School of Engineering, University Malaysia Perlis (UniMAP).
Zeyid T. Ibraheem
He was born in Iraq. He received the B.Sc. degree in Electrical and Electronic Engineering from University of Technology, Iraq in 1990; and the M.Sc. degree in Electrical Engineering from University of Technology, Iraq in 2000. He worked as a lecturer in Dijla University in IRAQ until 2011, and then he worked as a researcher in the Ministry of Science and Technology (MOST), Iraq until 2011. His researches interest in the area of communication and computer design. He has an experience in communication wireless and network
M. K. Salman
He received his M.Sc degrees in Computer Engineering from University of Technology in 2004. He was working as researcher in the Ministry of Science and Technology (MOST), and also he was project manager in IT Company in Iraq until 2011. His research interests focus on network deployment and wireless communication with emphasis on WiMAX networks. Now, he is studying to earn his Ph.D. degree in the Computer and Communication School of Engineering, University Malaysia Perlis (UniMAP).
R.B. Ahmed
He obtained his B. Eng in Electrical and Electronic Engineering from Glasgow University in 1994. He obtained his M.Sc and Ph.D. in 1995 and 2000, respectively, from the University of Strathclyde, UK. His research interests are on computer and telecommunication network modeling using discrete event simulators, optical networking, and coding and embedded system based on GNU/Linux for vision. He has five (5) years of teaching experience in Universiti Sains Malaysia. Since 2004, he has been working in Universiti Malaysia Perlis (UniMAP), where he is currently the Dean in the School of Computer and Communication Engineering and the Head of the Embedded Computing Research Cluster.
Abid Yahya
He earned his B.Sc. degree in Electrical and Electronic Engineering, major in Telecommunications, from the University of Engineering and Technology. Peshawar, Pakistan. Dr. Yahya began his career on a path that is rare among other research executives. He earned his M.Sc. and Ph.D. degrees in Wireless and Mobile systems in 2007 and 2010, respectively, from the Universiti Sains Malaysia, Malaysia. Currently, he is working in the School of Computer and Communication Engineering, Universiti Malaysia Perlis (UniMAP). His professional career outside the academia includes writing for international magazines and newspapers as a freelance journalist. He employed this combination of practical and academic experiences to a variety of consultancies for major corporations
Jaafar Adhab Al-Dhaibani
He earned his B.Sc. degree in Electrical and Electronic Engineering, major in Telecommunications, from the University of Technology, Baghdad, Iraq and earned his M.Sc. degree in Wireless Communications in 2002 from the University of Technology, Baghdad, Iraq. Engr. Adhab worked with ATDI Company for RF planning communication sites (IC telecom software). His researches interest is in wireless communication focusing on long term evolution (LTE-A), fourth generation (4G), Cooperative communications .Now, he is studying to earn his Ph.D. degree in the Computer and Communication School of Engineering, University Malaysia Perlis (UniMAP).
Zeyid T. Ibraheem
He was born in Iraq. He received the B.Sc. degree in Electrical and Electronic Engineering from University of Technology, Iraq in 1990; and the M.Sc. degree in Electrical Engineering from University of Technology, Iraq in 2000. He worked as a lecturer in Dijla University in IRAQ until 2011, and then he worked as a researcher in the Ministry of Science and Technology (MOST), Iraq until 2011. His researches interest in the area of communication and computer design. He has an experience in communication wireless and network
