University of Oulu

J. Park, S. Y. Jung, S. Kim, M. Bennis and M. Debbah, "User-Centric Mobility Management in Ultra-Dense Cellular Networks under Spatio-Temporal Dynamics," 2016 IEEE Global Communications Conference (GLOBECOM), Washington, DC, 2016, pp. 1-6. doi: 10.1109/GLOCOM.2016.7842367

User-centric mobility management in ultra-dense cellular networks under spatio-temporal dynamics

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Author: Park, Jihong1; Jung, Sang1; Kim, Seong-Lyun1;
Organizations: 1School of Electrical & Electronic Engineering, Yonsei University, Seoul, Korea
2Centre for Wireless Commu- nications, University of Oulu, Finland
3Mathematical and Algorithmic Sciences Lab, France Research Center, Huawei Technologies Co. Ltd
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.9 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2016
Publish Date: 2018-08-08


This article investigates the mobility management of an ultra dense cellular network (UDN) from an energy-efficiency (EE) point of view. Many dormant base stations (BSs) in a UDN do not transmit signals, and thus a received power based handover (HO) approach as in traditional cellular networks is hardly applicable. In addition, the limited front/backhaul capacity compared to a huge number of BSs makes it difficult to implement a centralized HO and power control. For these reasons, a novel user-centric association rule is proposed, which jointly optimizes HO and power control for maximizing EE. The proposed mobility management is able to cope not only with the spatial randomness of user movement but also with temporally correlated wireless channels. The proposed approach is implemented over a HO time window and tractable power control policy by exploiting mean-field game (MFG) and stochastic geometry (SG). Compared to a baseline with a fixed HO interval and transmit power, the proposed approach achieves the 1.2 times higher long-term average EE at a typical active BS.

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Series: IEEE Global Communications Conference
ISSN: 2334-0983
ISSN-L: 2334-0983
ISBN: 978-1-5090-1328-9
ISBN Print: 978-1-5090-1329-6
Pages: 1 - 6
DOI: 10.1109/GLOCOM.2016.7842367
Host publication: 2016 IEEE Global Communications Conference (GLOBECOM)
Conference: IEEE Global Communications Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
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