Title
MACH: Movement Aware CoMP Handover in Heterogeneous Ultra-Dense Networks
Abstract
The densification of small cells, ultimately towards ultra-dense networks (UDN), makes coordinated multipoint (CoMP) a feasible transmission solution for mobile users. However, CoMP may increase the handover rate, as users move across small and irregular BS cooperation regions. In this paper, we consider movement aware CoMP handover (MACH) in heterogeneous UDNs. Unlike most prior works, which focus on the handover trigger time, we explore the appropriate selection of BS cooperation set to reduce handover rate. By estimating cell dwell time, a user would be intelligently assigned to macro cell or small cell according to its movement trend. Moreover, we achieve a balance between BSs with long dwell time and the current best performed BS for multipoint cooperation while user moving. The performance of the proposed MACH is analyzed in terms of coverage probability and handover probability using stochastic geometry. Through extensive simulations, we show that the analytical results fit well with simulations, and the proposed MACH outperforms the existing works in both handover probability and coverage probability.
Year
DOI
Venue
2019
10.1109/GLOBECOM38437.2019.9013627
IEEE Global Communications Conference
Keywords
DocType
ISSN
ultra-dense networks,coordinated multipoint,handover,stochastic geometry
Conference
2334-0983
Citations 
PageRank 
References 
0
0.34
10
Authors
5
Name
Order
Citations
PageRank
Wen Sun1172.22
Lu Wang214432.99
Jiajia Liu3137294.60
Nei Kato43982263.66
Yanning Zhang51613176.32