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Guest Editorial 5G Wireless Communications With High Mobility
IEEE Journal on Selected Areas in Communications ( IF 16.4 ) Pub Date : 2020-12-01 , DOI: 10.1109/jsac.2020.3005498
Ruisi He , Fan Bai , Guoqiang Mao , Jerome Harri , Pekka Kyosti

The fifth generation (5G) wireless communication networks are expected to support communications with high mobility, e.g., with a speed up to 500 km/h. Hence 5G communications will have numerous applications in high mobility scenarios, such as high speed railways (HSRs), vehicular ad hoc networks, and unmanned aerial vehicles (UAVs) communications [1] – [3] . The 5G systems will provide advanced communication platforms enabling reliable transmission for the Wireless Train Backbone (WLTB) or Wireless Train Control & Management System (WTCMS) [4] , [5] . They will also enable new services or enhancements for vehicular communications in Intelligent Transportation System (ITS) [6] – [9] . The coordination and swarming control for UAVs will also benefit from 5G capabilities, as UAV-based 5G infrastructure modeling and improvement have begun receiving attention [10] . In general, high mobility communication is not only about how large is the maximum speed, it is more about the challenges caused by mobility. In high mobility scenarios, a wireless channel is rapidly time varying, Doppler shifts and spreads can be much larger than those in cellular communications, and if modeled statistically, the channel will be non-wide-sense stationary (non-WSS) over a short time period. In addition, network topology can change quickly, and switching among base stations (BSs) and/or peer nodes can be more frequent, not forgetting 5G challenges in cross-border mobility [11] .

中文翻译:

客座社论 具有高移动性的 5G 无线通信

预计第五代(5G)无线通信网络将支持具有高移动性的通信,例如,速度高达 500 公里/小时。因此,5G 通信将在高移动性场景中拥有众多应用,例如高速铁路 (HSR)、车载自组织网络和无人机 (UAV) 通信 [1] - [3]。5G 系统将为无线列车骨干网 (WLTB) 或无线列车控制与管理系统 (WTCMS) [4]、[5] 提供先进的通信平台,实现可靠的传输。它们还将为智能交通系统 (ITS) [6] – [9] 中的车辆通信提供新的服务或增强功能。无人机的协调和集群控制也将受益于 5G 能力,随着基于无人机的 5G 基础设施建模和改进开始受到关注 [10]。一般来说,高移动性通信不仅是最大速度有多大,更多的是移动性带来的挑战。在高移动性场景中,无线信道是快速时变的,多普勒频移和扩展可能比蜂窝通信中的要大得多,如果进行统计建模,该信道在短时间内将是非广义静止(non-WSS)时间段。此外,网络拓扑可以快速变化,基站(BS)和/或对等节点之间的切换可以更频繁,不要忘记跨境移动中的 5G 挑战 [11]。在高移动性场景中,无线信道是快速时变的,多普勒频移和扩展可能比蜂窝通信中的要大得多,如果进行统计建模,该信道在短时间内将是非广义静止(non-WSS)时间段。此外,网络拓扑可以快速变化,基站(BS)和/或对等节点之间的切换可以更频繁,不要忘记跨境移动中的 5G 挑战 [11]。在高移动性场景中,无线信道是快速时变的,多普勒频移和扩展可能比蜂窝通信中的要大得多,如果进行统计建模,该信道在短时间内将是非广义静止(non-WSS)时间段。此外,网络拓扑可以快速变化,基站(BS)和/或对等节点之间的切换可以更频繁,不要忘记跨境移动中的 5G 挑战 [11]。
更新日期:2020-12-01
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