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The fifth generation (5G) network is expected to support significantly large amount of mobile data traffic and huge number of wireless connections, to achieve better spectrum- and energy-efficiency, as well as quality of service (QoS) in terms of delay, reliability and security. Furthermore, the 5G network shall also incorporate high mobility requirements as an integral part, providing satisfactory service to users travelling at a speed up to 500 km/h. This paper provides a survey of potential high mobility wireless communication (HMWC) techniques for 5G network. After discussing the typical requirements and challenges of HMWC, key techniques to cope with the challenges are reviewed, including transmission techniques under the fast time-varying channels, network architecture with mobility support, and mobility management. Finally, future research directions on 5G high mobility communications are given.
Fan et al. (Fri,) studied this question.
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