Paper Info
Title
Supporting mobility in 5G: A comparison between massive MIMO and continuous ultra dense networks
Abstract
This paper proposes an approach for providing 5G services to mobile users that is based on continuous ultra dense networks (C-UDNs). The proposed approach outperforms the widely accepted solution based on macro cells and massive MIMO systems (M-MIMO). In particular, we show that the performance of M-MIMO systems deployed on macro cells is significantly limited by channel aging. The proposed mobility solution based on uplink beacons overcomes the handover problem often linked to UDNs. Dense networks make it possible for users to transmit at a power lower than that of macro cells, thus making C-UDN more robust to pilot contamination and allowing for lower Channel State Information (CSI) latencies due to shorter reuse distance of UL pilots. Extensive numerical results from detailed systemlevel simulations are provided in order to compare and highlight the benefits of the proposed C-UDN mobility solution to that of a macro M-MIMO deployment.
Year
DOI
Venue
2016
10.1109/ICC.2016.7510708
2016 IEEE International Conference on Communications (ICC)
Keywords
Field
DocType
massive MIMO network,continuous ultra dense networks,5G service,mobile user,macrocell,M-MIMO system,channel aging,uplink beacon,handover problem,pilot contamination,channel state information,CSI,C-UDN mobility solution
Radio resource management,Multi-user MIMO,3G MIMO,Computer science,Computer network,MIMO,Macro,Handover,Channel state information,Telecommunications link
Conference
ISSN
ISBN
Citations 
1550-3607
978-1-4799-6665-3
8
PageRank 
References 
Authors
0.64
11
7
Name
Order
Citations
PageRank
Petteri Kela115913.89
Xavier Gelabert2102.37
Jussi Turkka312415.90
Mario Costa49110.01
Kari Heiska581.32
Kari Leppänen6818.71
Christer Qvarfordt7164.51