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Akbari, Amir; Imran, Muhammad Ali; Tafazolli, Rahim; Dianati, Mehrdad (2011)
Publisher: IEEE
Languages: English
Types: Article
Subjects:

Classified by OpenAIRE into

arxiv: Computer Science::Information Theory
Energy efficiency has become an important aspect of wireless communication, both economically and environmentally. This letter investigates the energy efficiency of downlink AWGN channels by employing multiple decoding policies. The overall energy efficiency of the system is based on the bits-per-joule metric, where energy efficiency contours are used to locate the optimal operating points based on the system requirements. Our novel approach uses a linear power model to define the total power consumed at the base station, encompassing the circuit and processing power, and amplifier efficiency, and ensures that the best energy efficiency value can be achieved whilst satisfying other system targets such as QoS and rate-fairness.
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    • [1] H. M. Kwon, T. G. Birdsall, “Channel Capacity in Bits per Joule,” IEEE Journal of Oceanic Engineering, vol. 0E-11, no. 1, pp.97-99, Jan. 1986.
    • [2] A. Akbari, M. A. Imran, and R. Tafazolli, “Maximizing Average Energy Efficiency for Two-user AWGN Broadcast Channel,” proceedings of IEEE Future Network & Mobile Summit, Poland, June 2011.
    • [3] A. Goldsmith, Wireless Communications. Cambridge University press, 2005.
    • [4] A. Akbari, M. A. Imran, R. Hoshyar, A. Amich, and R. Tafazolli, “Average Energy Efficiency Contours with Multiple Decoding Policies,” IEEE Communications Letter, vol. 15, no. 5, pp. 506-508, May 2011.
    • [5] C. E. Shannon and W. Weaver, A Mathematical Theory of Communication. Urbana, IL: University Illinois Press, 1949.
    • [6] A. J. Fehske, P. Marsch, and G. P. Fettweis, “Bit per joule efficiency of cooperating base stations in cellular networks,” 3rd International Workshop on Green Communications, IEEE Global Communications Conference, GLOBECOM 2010, Florida, Dec. 2010.
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