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http://dx.doi.org/10.6109/jkiice.2014.18.11.2621

Power Allocation Scheme For Mobile Communication Systems Using Directional Transmission  

Lee, Woongsup (Department of Information and Communication Engineering, Gyeongsang National University)
Jung, Bang Chul (Department of Information and Communication Engineering, Gyeongsang National University)
Ban, Tae-Won (Department of Information and Communication Engineering, Gyeongsang National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.18, no.11, 2014 , pp. 2621-2627 More about this Journal
Abstract
Directional transmission is one of key technology to solve the utmost problem that current mobile communication system faces, which is explosively increasing data traffic, since directional transmission can maximize the throughput of mobile communication systems. In this work, we consider power allocation scheme for mobile communication system which utilizing directional transmission. Especially, we consider the case in which multiple users in the same sector of base station, are served at the same time by utilizing directional transmission. For this scenarios, we consider equal power allocation scheme, Water-filling based scheme and inverse SNR scheme. Moreover, we propose beam power allocation scheme whose objective is to maximize overall system throughput by taking into account interference between different directional transmissions. Moreover, we have examined the spectral efficiency and Jain's fairness index of various power allocation schemes for directional transmission by using system level simulator that has been developed in our previous work. Through simulations, it has been verified that the proposed power allocation scheme can improve the spectral efficiency of the system by 28%.
Keywords
Directional Transmission; Power Allocation; Optimization; System-Level Simulator; Performance Evaluations;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Cisco, "Cisco Visual Networking Index: Global Mobile Data Traffic Forecast Update, 2013-2018," Feb. 2014.
2 J. Huh, "An era of mobile-data explosion, how to prepare?," KT Digieco Focus, pp. 1-18, Jul. 2011.
3 W. Lee, and K. Sung, "Adaptive interference estimation for cellular mobile communication systems using directional transmission and performance evaluation based on system-level simulations ," J. Korea Inst. Inf. Commun. Eng., vol. 18, no. 9, pp. 2117-2123, Sep. 2014.   과학기술학회마을   DOI   ScienceOn
4 W. Lee, and D. Cho, "Adaptive Interference Estimation for Directional Transmission," in Proc. of CCNC 2012, Las Vegas, NV, Jan. 2012.
5 S. Pyun, H. Widiarti, Y. Kwon, D. Cho, and J. Son, "TDMA-based channel access scheme for V2I communication system using smart antenna," VNC 2010, pp.209-214, Dec. 2010.
6 W. Lee, and D. Cho, "Downlink power control scheme for smart antenna based wireless systems," VTC 2010 Spring, pp.1-5, May. 2010.
7 A. Goldsmith, "Wireless communications." Cambridge university press, 2005.
8 K. Lee, H. Lee, Y. Jang, and D. Cho, "CoBRA: Cooperative Beamforming-Based Resource Allocation for Self-Healing in SON-Based Indoor Mobile Communication System," IEEE Trans. on. Wireless Commu., vol.12, no.11, pp.5520-5528, Nov. 2013.   DOI   ScienceOn
9 K. C. Beh, A. Doufexi and S. Armour, "Performance evaluation of hybrid ARQ schemes of 3GPP LTE OFDMA system," in Proc. Personal, Indoor and Mobile Radio Communications 2007, pp. 1-5, Sep. 2007.
10 "Guidelines for evaluation of radio interface technologies for IMTAdvanced," ITU, Geneva, Switzerland, Report ITU-R M.2135, 2008.