The maritime communication network (MCN) plays an important role in the 6th generation (6G) system development. In MCNs, packet transport over long-distance lossy links will be ubiquitous. Transmission control protocol (TCP), the dominant transport protocol in the past decades, have had performance issues in such links. In this paper, we propose a novel transport approach which uses user datagram protocol (UDP) along with a simple yet effective bandwidth estimator for congestion control, and with a proactive packet-level forward erasure cor-rection (FEC) code called streaming code to provide low-delay loss recovery without data retransmissions at all. We show that the approach can effectively address two issues of the state-of-the-art TCP variants in the long-distance lossy links, namely 1) the low bandwidth utilization caused by the slow increase of the congestion window (CWND) due to long round-trip time (RTT) and the frequent CWND drop due to random and congestion losses, and 2) the high end-to-end in-order delivery delay when re-transmissions are incurred to recover lost packets. In addition, we show that the scheme's goodput has good smoothness and short-term intra-protocol fairness properties, which are beneficial for multimedia streaming and interactive applications that are prominent parts of today's wireless traffic.

Ye Li;Jianhao Yu;Liang Chen;Yingdong Hu;Xiaomin Chen;Jue Wang

School of Information Science and Technology,Nantong University,Nantong 226019,Jiangsu,China;Nantong Research Institute for Advanced Communication Technologies(NRIACT),Nantong 226019,Jiangsu,China

中国通信（英文版）

[1]Ye Li;Jianhao Yu;Liang Chen;Yingdong Hu;Xiaomin Chen;Jue Wang-.Packet Transport for Maritime Communications:A Streaming Coded UDP Approach)[J].中国通信（英文版）,2022(09):10-25

Coded,MCNs,retransmissions,CWND,goodput

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