Ruiyu Chen

Shenzhen University

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Qiu Xiang Jiang

Guilin University of Electronic Technology

Zhenzhou Wu

Tsinghua University

Deping Lin

Beijing University of Posts and Telecommunications

Betsy Ng

Nanyang Technological University

Zhengjian Chen

Xiaolei Chang

Tsinghua University

Xiuzhi Sun

China Electronics Corporation (China)

Chenxi Li

Tsinghua University

Tian Ji

Zhangzhou Normal University

Xu Chen

Renmin University of China

Cooperative Institutions

Tsinghua University

San Jose State University

Guilin University of Electronic Technology

Beijing University of Posts and Telecommunications

Beijing Institute of Graphic Communication

Linyi University

Shanxi Coal Transportation and Sales Group (China)

Deutsch Amerikanisches Institut Saarland

Shantou Central Hospital

Nanyang Technological University

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Study on QoS Routing Optimization Algorithms for Smart Ocean Networks

IEEE Access (2023)

Tian Ji Xiaolei Chang Zhengjian Chen Zhenzhou Wu Ruiyu Chen

Nowadays, ocean networks gradually become increasingly important for communication among network entities such as maritime and sea-crossing users. However, ocean networks are highly dynamic because the communication links are composed of satellite and microwave links, which could be easily influenced by the environment such as local climate. Thus, network transmission in ocean networks faces great challenges, including low reliability and low efficiency. In this paper, we propose a smart ocean network architecture, where we use Software Defined Network (SDN) to perform unified management of the network, and Segment Routing (SR) to control data forwarding paths. In this way, we can control network flows and optimize network routing among diverse network entities in an ocean network. However, many Quality of Service (QoS) guaranteed applications in ocean networks, such as remote control, require lower delay. To guarantee the performance for such applications, we further propose QoS routing algorithms based on Fuzzy-Lagrange for the smart ocean networks architecture, where the optimization objective is to ensure service quality provided to users. According to experimental results, it is proved that, in comparison with the benchmark algorithms, the Fuzzy-Lagrange (FuzLag) algorithm proposed based on link fuzzification and Lagrangian Relaxation can improve the performance by 23% at most.

Multipath routing

10.1109/access.2023.3298438

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BLR: The Bus-line Router

Xiuzhi Sun Deping Lin Betsy Ng Qiu Xiang Jiang Ruiyu Chen

A now routing algorithm based on the principle of the 'bus-line router' design is presented. The algorithm has the advantages of both maze-router and channel router that are small routing areas, high routibility, and high routing speed. The switch box problem is avoided. The basic approaches of the algorithm are using minimum bus lines to get small routing areas, and choosing the optimal distribution of terminals to increase the probability of the success of close routing. Both close routing and open routing methods are described. The complete CAD layout package, which includes layout input, global router, and detail router by using the bus-line router algorithm, has been implemented in C, on SUN workstation at San Jose State University.

One-armed router

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Equal-cost multi-path routing

Core router

Policy-based routing

Multipath routing

10.1109/acssc.1988.754026

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