星地协同智能海洋通信网络发展展望

doi:10.11959/j.issn.1000-0801.2020281

Abstract

Abstract:

With the implementation of national marine strategy,economic activities such as maritime transport,marine resource exploitation become increasingly important,and the demand for maritime communications keeps growing.Although the terrestrial cellular network had entered the 5G era,existing maritime communications still mainly rely on marine satellites and shore-based base stations,which are far from meeting the demand in terms of communication rate,delay and reliability.The future 6G networks are expected to offer satellite-air-ground-sea full coverage.However,due to complex maritime environments and heterogeneous marine services,the 6G maritime communication networks still face unique challenges.After summarizing the current developing status of maritime communications,related key technologies were surveied from three aspects:transmission efficiency,network coverage,and information service.For the future development of 6G intelligent maritime communication networks,the technical methods and research directions of maritime environment-aware intelligent transmission,coordinated satellite-terrestrial dynamic networking and service-driven resource allocation were prospected.

Key words: maritime communication network, 6G, environment-aware, satellite-terrestrial coordination, information service

CLC Number:

TN929.5

Wei FENG,Rui TANG,Ning GE. Perspectives on coordinated satellite-terrestrial intelligent maritime communication network[J]. Telecommunications Science, 2020, 36(10): 1-11.

Figures/Tables 6

References 52

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服务类型	服务场景	典型速率	典型时延
海事安全	导航避障	9.6 kbit/s	低
通信	通知广播	1.2 kbit/s	-
	紧急救援	153.6 kbit/s(语音)	RE
		492 kbit/s(图像)	RE
		15 Mbit/s(视频)	RE
专用通信	视频监测	10 Mbit/s	低
	数据收集	6 Mbit/s	中
公共通信	文本信息	9.6 kbit/s	中
	语音电话	153.6 kbit/s	IP
	视频电话	30 Mbit/s	IP
	网页浏览	6 Mbit/s	低
	多媒体下载	>100 Mbit/s	中

参考文献	场景	频率/GHz	最大收发距离/km	发送/接收天线高度/m	信道统计量	建模角度	主要模型
[20]	岸－船	2.1	46	10,25,50,100/10	PL	考虑地球曲率	FSL
[21]	船－岸（峡湾）	2.075	45	9.5/11.2	RSL,PDP,SC	SIMO系统	ITU-R
[22]	浮标－船	5.8	10	1.7/9.8	PL	LOS/NLOS部分	LPL,简化两径模型
[23]	船－船	35/94	20	5/9.7	PL,PDP,RMS-DS	引入频率因子	FSL,修正两径模型
[24]	岸－船	2.4	2	3/4.5	PL,RSL	考虑海浪高度	FSL,两径模型
[25]	船－岸	5.15	10	3~4/7.6,10,20	PL	考虑蒸发波导	FSL,两径模型，三径模型
[26]	船－岸	2.075	15.5	6.5/23	RSL,DFO,SRC	考虑海况	ITU-R,多普勒效应
[27]	船－岸	5.2	12	7.4~8.2/32.9	PL,PDP	时变船载天线高度	ITU-R,两径模型
[28]	船－岸	1.39/4.5	40	18.5/30~55	RSL,SSF	引入环境随机性	修正两径模型
[29]	岛－岛	0.248/0.34	33.3，48	18.5/16，14	RSL,PL	窄带，考虑海况	FSL,ITU-R
[30]	空－船	8	不详	760/1.22	PL,PDP	考虑海况和传播环境	两径模型，三径模型
[31]	空－船	5.7	10	370,830,1 910/7.65	PL,RMS,PDP	蒸发波导/抬升波导	FSL,两径模型，三径模型
				370,830,1 910/2.1

Perspectives on coordinated satellite-terrestrial intelligent maritime communication network

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