文章基本信息

标题：Mobility Load Balancing Based Adaptive Handover in Downlink LTE Self-Organizing Networks
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作者：Hana Jouini ; Mohamed Escheikh ; Kamel Barkaoui 等
期刊名称：International Journal of Wireless & Mobile Networks
印刷版ISSN：0975-4679
电子版ISSN：0975-3834
出版年度：2016
卷号：8
期号：4
页码：89
DOI：10.5121/ijwmn.2016.8406
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：This article investigates mobility load balancing (MLB) algorithm implementation through networksimulator (ns-3) in long term evolution (LTE) systems employing orthogonal frequency division multipleaccess (OFDMA) for downlink (DL) data transmission. MLB is introduced by the third generationpartnership project (3GPP) as a key target of LTE self-organizing networks (SONs) [1]. Our contributionis twofold. First, we implemented elementary procedures (EPs) related to load management (LM) functionof the X2-application protocol (X2AP) as specified in TS 136.423 [2]. We particularly focused on EPs’Resource Status Reporting Initiation Procedure’ and 'Resource Status Reporting Procedure’. Second, weimplemented a MLB based adaptive handover (HO) algorithm enabling to configure adaptively HOhysteresis threshold for each neighbouring cell, of an overloaded cell, according to its current loadinformation. Numerical results show how, through suitable simulation scenarios, MLB enables enhancingnetwork performance in terms of overall throughput, packet loss ratio (PLR) and fairness without incurringHO overhead.
关键词：LTE; load management; X2AP; elementary procedure; mobility load balancing