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Millimeter Wave Communications for Future Mobile …

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[ ] 17 Jul 20171Improved Handover Through Dual Connectivityin 5G mmWave Mobile NetworksMichele Polese,Student Member, IEEE, Marco Giordani,Student Member, IEEE,Marco Mezzavilla,Member, IEEE, Sundeep Rangan,Fellow, IEEE, Michele Zorzi,Fellow, IEEEAbstract The Millimeter wave (mmWave) bands offer thepossibility of orders of magnitude greater throughput for fifthgeneration (5G) cellular systems. However, since mmWave signalsare highly susceptible to blockage, channel quality on any onemmWave link can be extremely intermittent. This paper imple-ments a novel dual connectivity protocol that enables Mobile userequipment (UE) devices to maintain physical layer connections to4G and 5G cells simultaneously. A novel uplink control signalingsystem combined with a local coordinator enables rapid pathswitching in the event of failures on any one link.

2 generation mobile users, and described a preliminary ns–3 simulation framework to evaluate the performance of both. By extending our previous contributions, in …

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