NDLI: Adaptive double thresholds handover mechanism in small cell LTE-A network

Content Provider	IEEE Xplore Digital Library
Author	Qiang Shen Jing Liu Zhangpeng Huang Xiaoying Gan Zhifeng Zhang Dong Chen
Copyright Year	2014
Description	Author affiliation: Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China (Qiang Shen; Jing Liu; Zhangpeng Huang; Xiaoying Gan; Zhifeng Zhang; Dong Chen)
Abstract	Rapid demands for large capacity services and shortage spectrum resources have motivated the deployment of small cells in LTE-A network. Small cells are low-cost, low power nodes with limited coverage region, as the existence of small cells, more sophisticated network architecture increases the difficulty in dealing with mobility management. The contradiction between traffic demands and network resources is also very prominent, the rationally tradeoff between high quality service demands and signaling overhead in HO procedure should be considered in mobility management. Aiming at solving these issues, efficient handover (HO) mechanisms are more and more concerned to enhance mobility management in small cell networks. In this paper, we proposed a Self-Organizing Networks (SON) based Double Thresholds Optimization (DTO) handover algorithm, which offers an efficient method to mitigate handover signaling overhead while satisfying user's requirements of service quality. Specifically, through optimizing two key HO parameters associated with HO procedure, DTO enhances mobility robustness management effectively. Furthermore, a system-level LTE simulator is implemented to evaluate the mobility performance. The results strongly verify that the proposed DTO algorithm can assist LTE network in achieving an appropriate compromise between handover (HO) signaling overhead and quality of service (QoS), besides, load balance is acquired with rational allocation of resources.
Starting Page	1
Ending Page	6
File Size	680292
Page Count	6
File Format	PDF
ISBN	9781479973392
DOI	10.1109/WCSP.2014.6992103
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Hidden Markov models Quality of service Handover Mobile communication Optimization Load modeling
Content Type	Text
Resource Type	Article

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