User Assignment Algorithm for Energy Efficient Multiple Access Scheme of MIMO-OFDMA Systems
Shivkanya. D. Jadhav , V. M. Harnal , , ,
Affiliations M. B. E. Society’s College Of Engineering Ambajogai ,Ambajogai, India
:10.22362/ijcert/2017/v4/i11/xxxx [UNDER PROCESS]
Energy Efficiency (EE) is the important issue for multi-user Multiple-Input Multiple-Output - Orthogonal Frequency-Division Multiple Access (MIMO - OFDMA) system. In this paper, the Energy-efficient Multiple Access (EMA) schemes are proposed to improve EE by selecting either Time-Division Multiple Access (TDMA) or Space-Division Multiple Access (SDMA) for each subband, based on the number of users and power consumption. The polynomial-complex and greedy-based user assignment algorithms for the EMA system are adapted to Maximize energy efficiency. System complexity and energy efficiency are compared. Simulation Results verified that the EE of Greedy (GUSA) algorithms could significantly improve energy efficiency with practically compare to Fine EMA algorithm with increasing complexity.
Shivkanya. D. Jadhav and V. M. Harnal (2017). User Assignment Algorithm for Energy Efficient Multiple Access Scheme of MIMO-OFDMA Systems. International Journal of Computer Engineering In Research Trends, 4(11), 469-477. Retrieved from http://ijcert.org/ems/ijcert_papers/V4I1103.pdf
Keywords : Energy efficiency (EE), channel access method, multiple access methods, time-division multiple access (TDMA), space-division multiple access (SDMA), orthogonal frequency-division multiple access (OFDMA), EMA, user assignment, greedy algorithm
 Jingon Joung, and Sumei Sun, Senior Member IEEE, “EMA : Energy-Efficiency-Aware Multiple Access”, IEEE Communications Letters, Vol. 18, No. 6, June 2014.
 Jingon Joung, and Sumei Sun, Senior Member IEEE, “User Assignment Algorithms for Energy-Efficiency-Aware Multiple Access (EMA) Systems” IEEE Communications Letters, Vol. 20, No. 8, August 2016.
 C. Xiong, G. Y. Li, S. Zhang, Y. Chen, and S. Xu, “Energy efficient resource allocation in OFDMA networks,” in Proc. 2011 IEEE Global Communications Conference
 S. Cui, A. J. Goldsmith and A. Bahai, “Energy constrained modulation optimization,” IEEE Trans. Wireless Commun, vol. 4, no. 5, pp. 2349–2360, Sept. 2005.
 Y. Huang, C. Tan, and B. Rao, “Joint beamforming and power control in coordinated multicell: max-min duality, effective network and largesystem transition,” IEEE Trans. Wireless Commun, vol. 12, no. 6, pp.2730–2742, Jun. 2013.
 M. C. Gursoy, “On the capacity and energy efficiency of training-base transmissions over fading channels,” IEEE Trans. Inf. Theory, vol.55,no. 10, pp. 4543–4567, Oct. 2009.
 D. W. K. Ng, E. S. Lo, and R. Schober,“Energy- Efficient Resource Allocation in OFDMA Systems With Large Numbers of Base Station Antennas,” IEEE Trans Wireless Commun,vol.11, no.9, pp.3292– 3304,Sep.2012 .
 S. He, Y. Huang, S. Jin, and L. Yang, “Coordinated beamforming for energy efficient transmission in multicell multiuser systems,” IEEE Trans.Commun, vol. 61, no. 12, pp. 4961–4971, Dec. 2013.
 J. Joung, C. K. Ho, and S. Sun, “Power amplifier switching (PAS) forenergy efficient systems,” IEEE Wireless Commun. Lett., vol. 2, no. 1,pp. 14–17, Feb. 2013.
 D. Liu et al., “User association in 5G networks: A survey and an outlook,” IEEE Commun. Surveys , vol. 18, no.2, pp. 1018–1044, 2nd Quart., 2016.
 Dukka Venkataramana, Chiranjeevulu Bagathi, ” Energy Efficient Multiple Access Scheme for Multi-User System with Improved Gain ”, International Journal of Computer Engineering In Research Trends, Volume 2, Issue 11, November-2015, pp. 739-743