長期演進網路之高能效協同式傳輸

周建銘

doi:10.6842/NCTU.2015.00880

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長期演進網路之高能效協同式傳輸

Energy Efficient Collaborative Transmission in LTE networks

周建銘 , Ph.D　　Advisor：黃經堯　　

英文 DOI： 10.6842/NCTU.2015.00880

能效；協同傳輸；第四代無線通訊系統； Energy Efficiency ； Collaborative Transmission ； 4G

Abstract │ Reference (81) │ Altmetrics

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Recently, mobile data traffic grows significantly and network operators are anxious to find solutions to provide enormous capacity with low cost. To meet the demand, different types of small cells are introduced to efficiently increase system capacity and user throughput. On the contrary, when dense cells are deployed, the network energy consumption is increasing and how to make an energy-efficient transmission is vital. Meanwhile, people who extremely rely on wireless services expect to have low-power consumption device and ways to prolong battery life for mobile devices are also imperative. In this dissertation, we analyze Downlink Energy Efficiency and Uplink EE of Long Term Evolution (LTE) networks, with comprehensively taking access controls into consideration. Consequently, the approaches to improve DL EE and UL EE is proposed respectively. To maximize DL EE, we propose a Genetic Resource Provisioning (GRP) scheme to adapt the inter-cell collaborative transmission efficiently. Alternatively, within Personal Area Network (PAN), a self-user relaying (SUR) mechanism, a kind of inter-device collaboration, is used to reduce PAN’s power consumption. Enhancements for GRP and SUR is further designed to jointly improve energy efficiency in LTE networks.

Reference ( 81 ) 〈TOP〉

[1] R. Estrada, A. Jarray, H. Otrok, Z. Dziong, and H. Barada, “Energy-Efficient Resource-Allocation Model for OFDMA Macrocell/Femtocell Networks”, IEEE Trans. on vehicular technology, 62(7), 3429-3437.
連結：
[2] C. S. Chen, F. Baccelli, and L. Roullet, "Joint optimization of radio resources in small and macro cell networks," IEEE Veh. Technol. Conf., pp. 1-5, May 2011.
連結：
[3] S. Zhou, A. Goldsmith and Z. Niu, 'On Optimal Relay Placement and Sleep Control to Improve Energy Efficiency in Cellular Networks', 2011 IEEE International Conference on Communications (ICC), 2011.
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[4] D. Wang, X. Wang and X. Cai, 'Optimal Power Control for Multi-User Relay Networks over Fading Channels', IEEE Transactions on Wireless Communications, vol. 10, no. 1, pp. 199-207, 2011.
連結：
[5] M. Nokleby and B. Aazhang, 'User Cooperation for Energy-Efficient Cellular Communications', 2010 IEEE International Conference on Communications, 2010.
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