Dynamic Multi-Connectivity Performance in Ultra-Dense Urban mmWave Deployments

被引:93
作者
Petrov, Vitaly [1 ]
Solomitckii, Dmitrii [1 ]
Samuylov, Andrey [1 ]
Lema, Maria A. [1 ,2 ]
Gapeyenko, Margarita
Moltchanov, Dmitri [1 ]
Andreev, Sergey [1 ]
Naumov, Valeriy [3 ]
Samouylov, Konstantin [4 ,5 ]
Dohler, Mischa [2 ]
Koucheryavy, Yevgeni [1 ]
机构
[1] Tampere Univ Technol, FI-33101 Tampere, Finland
[2] Kings Coll London, London WC2R 2LS, England
[3] Serv Innovat Res Inst, FI-00101 Helsinki, Finland
[4] Peoples Friendship Univ Russia, Moscow 119333, Russia
[5] Russian Acad Sci, Inst Informat Problems, Fed Res Ctr Comp Sci & Control, Moscow 117198, Russia
基金
芬兰科学院;
关键词
5G mobile networks; millimeter-wave (mmWave) technology; multi-connectivity strategies; session continuity; link interruptions; human body blockage; dense urban deployments; integrated methodology; MILLIMETER-WAVE; CELLULAR NETWORKS; 5G; INTERFERENCE; ACCESS; SYSTEMS;
D O I
10.1109/JSAC.2017.2720482
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Leveraging multiple simultaneous small cell connections is an emerging and promising solution to enhance session continuity in millimeter-wave (mmWave) cellular systems that suffer from frequent link interruptions due to blockage in ultra-dense urban deployments. However, the available performance benefits of feasible multi-connectivity strategies as well as the tentative service quality gains that they promise remain an open research question. Addressing it requires the development of a novel performance evaluation methodology, which should consider: 1) the intricacies of mmWave radio propagation in realistic urban environments; 2) the dynamic mmWave link blockage due to human mobility; and 3) the multi-connectivity network behavior to preserve session continuity. In this paper, we construct this much needed methodology by combining the methods from queuing theory, stochastic geometry, as well as ray-based and system-level simulations. With this integrated framework, both user-and network-centric performance indicators together with their underlying scaling laws can be quantified in representative mmWave scenarios. To ensure modeling accuracy, the components of our methodology are carefully cross verified and calibrated against the current considerations in the standards. Building on this, a thorough comparison of alternative multi-connectivity strategies is conducted, as this paper reveals that even simpler multi-connectivity schemes bring notable improvements to session-level mmWave operation in realistic environments. These findings may become an important reference point for subsequent standardization in this area.
引用
收藏
页码:2038 / 2055
页数:18
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