By Topic

An Effective Hotspot Cell Management Scheme Using Adaptive Handover Time in 4G Mobile Networks

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Dongwook Kim ; Dept. of EECS, Korea Adv. Inst. of Sci. & Technol., Daejeon ; Seunghak Lee ; Hanjin Lee ; Hyunsoo Yoon

We propose a hotspot cell management scheme using adaptive handover time in 4G mobile networks. 4G networks are expected to support various multimedia services over IP network and satisfy high spectral efficiency requirement with overcoming time and frequency selective fading due to the high speed of users. In cellular systems including 4G networks, hotspot cells can be occurred when available wireless resources at some location are not enough to sustain the needs of users. The hotspot cell can potentially lead to blocked and dropped calls and cause degradation of the service quality. In the meanwhile, a band of users enjoying multimedia services can move around in a 4G mobile network, which may generate heavy flows of traffic load in the network. This situation can generate the hotspot cell which has a short length of life at most a few minutes. In this paper, we propose a handover-based scheme which can effectively manage hotspot cells in 4G mobile networks. The proposed scheme adopts hard handoff mechanism and dynamically controls the time point of handover based on the amount of load of the current serving cell and the target cell. Adaptation of handover time according to the amount of load effectively and flexibly can manage the hotspot cell. And, through our hotspot cell management scheme, acceptable service quality can be supported as users maintain graceful connections with the network. In the simulation results, we find that our scheme makes smaller number of hotspot cells and supports higher service quality than compared schemes.

Published in:

TENCON 2005 2005 IEEE Region 10

Date of Conference:

21-24 Nov. 2005