Maritime 5G Long Distance Wireless Backhaul Method And Performance Evaluation

Both the exploitation and utilization of Marine resources and the protection of China’s maritime space require efficient signal coverage provided by maritime wireless communication networks.However,the conventional onshore fiber-optic cable backhaul scheme appears to be cost-effective and impractical in Marine scenarios,while the wireless multi-hop backhaul scheme is expected to be an effective scheme for constructing remote backhaul links between offshore nodes and shore-based command centers.At present,the existing wireless backhaul methods can be divided into the use of shore-based communication system to achieve maritime coverage,which has a problem that it can not achieve the far maritime coverage;Multi-hop routing is used to realize long-distance communication,but there are some problems such as insufficient coverage distance,large network delay and low packet delivery rate.The use of satellite is the main method in various countries of establishing maritime backhaul link,but there are potential satellite failures that can lead to serious consequences.With the rapid development of 5G,the technology has been proven to provide low latency and reliable communication links.Therefore,firstly,this paper divides the maritime wireless backhaul network into"master ship-slave ship" wireless backhaul network and "master ship-shore-based" wireless multi-hop backhaul network.The offshore wireless backhaul network consists of the shore-based base station,the master ship equipped with 5G core network and base station,the slave ship and the buoy and other nodes.The network division reduces the control scope of the shore-based base station,reduces the cost of wireless backhaul signaling interaction between the base station and the offshore node,and alleviates the information management pressure of the shore-based base station to a certain extent.By carrying the 5G portable base station onto the master ship,it can complete the transformation of identity from offshore user to relay base station.Through the multi-hop backhaul link between the master ship and the offshore backhaul relay node,the master ship transmits the traffic in the "master ship-slave ship"wireless backhaul network to the shore-based command center,among which the backhaul relay node is buoy,offshore platform or other backhaul relay ship.Based on technical hotspots such as 5G wireless backhaul and large-scale MIMO,this paper studies the offshore 5G long-distance wireless backhaul method.By carrying the 5G portable base station with long-distance,low-delay and high-capacity communication functions on board,the wireless signal coverage distance can be expanded.The Marine Information awareness technology is studied,and the Marine wireless IAMR algorithm based on Information awareness is proposed.A system level simulation platform is set up,in view of the method of expanding signal coverage by using 5G ship base station,realized the maritime 5G wireless backhaul system modeling,in view of the maritime 5G wireless backhaul system and the maritime wireless backhaul method based on the Information Aware Multi-hop Routing(IAMR)algorithm are evaluated.Through compared with AODV and other routing algorithms,simulation results show that IAMR algorithm has better performance on average end-to-end delay and average packet delivery rate.The results show that the proposed maritime wireless multi-hop backhaul method based on information aware multi-hop routing algorithm can effectively expand the coverage of signals at sea,reduce signal transmission delay and improve the damage resistance of backhaul network.