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A survey on femtocell handover management in dense heterogeneous 5G networks
Telecommunication Systems ( IF 2.5 ) Pub Date : 2020-10-01 , DOI: 10.1007/s11235-020-00718-1
Rami Ahmad , Elankovan A. Sundararajan , Ala’ Khalifeh

The Heterogeneous Network is widely used in the Fifth Generation wireless network to solve the problem of increasing demand on wireless communication. Femtocell or called Home-evolved NodeB (HeNB) is one of the small cells nominated to be used in this generation. HeNB is a low-power, low-cost, and short coverage area base station randomly assigned by the user. Therefore, HeNB is used in Long Term Evolution (LTE/LTE-Advanced) to support Quality of Service next to conventional cell. Based on the short range and dense use of HeNB, the seamless handover procedure is one of the challenges HeNet system is facing. Though there are numerous present literature work for handover decision issues, this paper attempts to present handover management challenges and the outline of modern handover decision algorithms in between the evolved NodeB (eNB) and HeNB. Furthermore, comprehensive details of the handover procedure in LTE-A Heterogeneous Networks are presented. This survey categorizes the recent studies in decision algorithms for the two-tier network (eNB and HeNB) regarding the main decision technique. Finally, a comprehensive summary of input parameters, techniques, and performance evaluation for each handover decision scheme are discussed by providing the advantage and disadvantage of each category.



中文翻译:

密集异构5G网络中的毫微微小区切换管理研究

异构网络被广泛用于第五代无线网络中,以解决对无线通信的需求不断增长的问题。毫微微小区或称为家庭演进型NodeB(HeNB)是被提名用于这一代的小型小区之一。HeNB是用户随机分配的低功率,低成本,短覆盖区域的基站。因此,在长期演进(LTE / LTE-Advanced)中使用HeNB来支持传统小区之后的服务质量。基于HeNB的短距离和密集使用,无缝切换过程是HeNet系统面临的挑战之一。尽管目前有很多有关切换决策问题的文献,但本文试图在演进的NodeB(eNB)和HeNB之间提出切换管理挑战和现代切换决策算法的概述。此外,提供了LTE-A异构网络中的切换过程的全面细节。本调查将有关主要决策技术的两层网络(eNB和HeNB)决策算法的最新研究分类。最后,通过提供每种类别的优缺点,讨论了每种切换决策方案的输入参数,技术和性能评估的综合摘要。

更新日期:2020-10-02
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