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Hard Handover Algorithm for Self Optimization in 3GPP LTE System  

Lee, Doo-Won (강원대학교 IT대학 전기전자공학부)
Hyun, Kwang-Min (강릉원주대학교 정보통신공학과)
Kim, Dong-Hoi (강원대학교 IT대학 전기전자공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.3A, 2010 , pp. 217-224 More about this Journal
Abstract
In this paper, we propose a hard handover algorithm for a base station's self-optimization, one of the automatic operational technologies for the 3GPP LTE systems. The proposed algorithm simultaneously considers a mixed target sell selection method for optimal selection and a multiple parameter based active hysteresis method with the received signal strength from adjacent cells and the cell load information of the candidate target cells from information exchanges between eNBs through X2 interface. The active hysteresis method chooses optimal handover hysteresis value considering the costs of the various environmental parameters effect to handover performance. The algorithm works on the optimal target cell and the hysteresis value selections for a base station's automatic operational optimization of the LTE system with the gathered informaton effects to the handover performance. The simulation results show distinguished handover performances in terms of the most important performance indexes of handover, handover failure rate and load balancing.
Keywords
3GPP LTE; Self-Optimization; Target Cell Selection; Hard Handover; Active Hysteresis;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 D. H. Kim and K. Jun, "The Effect of the QoS Satisfaction on the Handoff for Real–Time Traffic in Cellular Network," LNCS 3726, pp. 1106-1111, Sept. 2005.
2 3GPP, TR25.848 v4.0.0, "Physical layer aspect of UTRA high speed downlink packet access (Release 4)," Mar. 2001.
3 H. Kim and Y. Han, "Enhanced Correlated Shadowing Generation in Channel Simulation," IEEE Comm. Letters, Vol.6, No.7, pp.279-281, July 2002.   DOI   ScienceOn
4 3GPP TS 36.902, "Evolved Universal Terrestrial Radio Access network (E-UTRAN); Self-configuring and self-optimizing network use cases and solution," Sept. 2008.
5 3GPP TR 25.814, "Physical Layer Aspects for Evolved UTRA," 3GPP Technical Report 25.814, version 7.1.0, Sept. 2006.
6 A. Toskala, H. Holma, K. Pajukoski, and E. Tiirola, "UTRAN Long Term Evolution in 3GPP," Proc. PIMRC'06, Sept. 2006.
7 3GPP TS 36.300, "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access network (E-UTRAN); Overall description," Sept. 2008.
8 염동화, 어윤, 강창순, "셀룰러 CDMA 시스템을 위한 커버리지와 무선자원의 결합형 관리기법," 한국통신학회지, Vol.29, No.01A, pp.1139-1146, 2004년 10월.   과학기술학회마을
9 B. Lee, H. Chen, and S. Huang, "Study on Traffic Shedding for Soft-Handoff Using MCCDMA in Wireless ATM Networks," IEICE transactions on comm., Vol.E89-B, pp.76-87, Jan. 2006.   DOI   ScienceOn
10 W. I. Kim and C. S. Kang, "A new traffic-load shedding scheme in the WCDMA mobile communication systems," Proc. VTC'02, Vol.4, pp.2405-2409, Sept. 2002.
11 T. B. Zahariadis, K. G. Vaxevanakis, C. P. Tsantilas, N. A. Zervis, and N. A. Nikolaou, "Global Roaming in Next- Generation Networks," IEEE Comm. Magazine, pp.145-151, Feb. 2002.
12 WiMAX Forum, "Can WiMAX Address Your Applications?," Oct. 2005.
13 "Global mobile broadband: Market potential for 3G LTE (long term evolution)," Analysis Research Limited for UMTS Forum, Jan. 2008.