Interference management for moving networks in ultra-dense urban scenarios

Yutao Sui,Tommy Svensson,Ismail Guvenc

doi:10.1186/s13638-015-0326-1

Abstract

The number of users relying on broadband wireless connectivity while riding public transportation vehicles is increasing significantly. One of the promising solutions is to deploy moving base stations on public transportation vehicles to form moving networks (MNs) that serve these vehicular users inside the vehicles. In this study, we investigated the benefits and challenges in deploying MNs in ultra-dense urban scenarios. We identified that the key challenge limiting the performance of MNs in ultra-dense urban scenarios is inter-cell interference, which is exacerbated by the urban canyon effects. To address this challenge, we evaluated different inter-cell interference coordination and multi-antenna interference suppression techniques for MNs. We showed that in using MNs together with effective interference management approaches, the quality of service for users in vehicles can be significantly improved, with negligible impacts on the performance of regular outdoor users.

Highlights

The demand for ubiquitous availability of broadband mobile data is exploding
We focus on the deployment of moving networks (MNs) on public transportation vehicles in an ultra-dense urban area with a practical densely deployed heterogeneous and small cell networks (HetSNets) framework defined by the test case ‘dense urban information society’ in the EU 5G project METIS [4]c
We show that compared with serving the vehicular UE (VUE) directly from macro BSs, by using MNs, the quality of service (QoS) at VUEs can be significantly improved without sacrificing the performance of regular outdoor user equipment (UE)

Summary

Introduction

The demand for ubiquitous availability of broadband mobile data is exploding. The industry has predicted a 1,000-fold increase in mobile data traffic within the decade [1,2,3]. To meet the capacity demand of mobile communication systems, academia and industry are working together closely. Several large scale projects such as EU FP7 Mobile and wireless communications Enablers for the Twenty-twenty Information Society (METIS) and 5GNOWa [2,4], have recently started to investigate 5G mobile communication systems, ranging from new radio access interfaces to new system architectures. With the increasing capabilities of mobile devices and cloud computing, user experiences are based on the capacity a mobile communication system can offer but are determined by the latency of the communication, reliability of the services, and pervasive availability

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Conclusion