Wireless Internet. 7th International ICST Conference, WICON 2013, Shanghai, China, April 11-12, 2013, Revised Selected Papers

Research Article

An Algorithm for Finding Energy Efficient Relay Positions in Cellular Network

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  • @INPROCEEDINGS{10.1007/978-3-642-41773-3_14,
        author={Ming Zhao and Saifeng Ni and Sihai Zhang and Wuyang Zhou},
        title={An Algorithm for Finding Energy Efficient Relay Positions in Cellular Network},
        proceedings={Wireless Internet. 7th International ICST Conference, WICON 2013, Shanghai, China, April 11-12, 2013, Revised Selected Papers},
        proceedings_a={WICON},
        year={2013},
        month={10},
        keywords={relay position energy efficiency green communication},
        doi={10.1007/978-3-642-41773-3_14}
    }
    
  • Ming Zhao
    Saifeng Ni
    Sihai Zhang
    Wuyang Zhou
    Year: 2013
    An Algorithm for Finding Energy Efficient Relay Positions in Cellular Network
    WICON
    Springer
    DOI: 10.1007/978-3-642-41773-3_14
Ming Zhao1,*, Saifeng Ni1,*, Sihai Zhang1,*, Wuyang Zhou1,*
  • 1: University of Science and Technology of China
*Contact email: zhaoming@ustc.edu.cn, saifeng@mail.ustc.edu.cn, shzhang@ustc.edu.cn, wyzhou@ustc.edu.cn

Abstract

In this paper, we propose an iterative algorithm for finding near-optimal Energy Efficient Relay Positions(EERP) in Amplify-and-Forward (AF) and Decode-and-Forward (DF) relay-assisted cellular networks. Each iteration of EERP algorithm contains two steps, i.e. energy efficient cell division and energy efficient center searching. Close-form expressions of energy efficient cell division boundaries are provided. And two-dimensional Fast Fourier Transform (FFT) is adopted to reduce the complexity of energy efficient center searching. Simulation results show near-optimal relay positions of different pathloss factors, relay scenarios and relay numbers, and demonstrates the effectiveness of EERP.