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A New Cell Selection and Handover Approach in Heterogeneous LTE Networks: Additional Criteria Based on Capacity Estimation and User Speed

Authors:
Edinaldo João Costa de La-Roque
Carlos Patrick Alves da Silva
Carlos Renato Lisboa Francês

Keywords: LTE; Handover; Load Balancing; Capacity Estimation; User Speed.

Abstract:
Long Term Evolution (LTE) heterogeneous networks represent an interesting approach to the ever increasing demand for coverage and Quality of Service (QoS) by the mobile users. Small cells play an important role in dealing with this demand by providing a means for the mobile user to overcome the problem of lack of mobile network resources or, when these resources are available, a way to dodge their poor quality in certain scenarios. However, the cell selection and handover procedures found in LTE Release 8 are inefficient in heterogeneous scenarios, since they are based only on Reference Symbol Received Power (RSRP) for cell selection and handover, and Reference Symbol Received Quality (RSRQ) for handover only parameters. In this paper, the implementation of two additional criteria is proposed as an improvement for the cell selection and handover procedures: base station capacity estimation and user speed. As the results show, the proposed algorithm has the benefit of contributing to the macrocell offloading, network load balancing, and user QoS.

Pages: 57 to 65

Copyright: Copyright (c) IARIA, 2015

Publication date: June 21, 2015

Published in: conference

ISSN: 2308-4030

ISBN: 978-1-61208-411-4

Location: Brussels, Belgium

Dates: from June 21, 2015 to June 26, 2015