Cheng Zeng;Jun-Bo Wang;Yijin Pan;Yijian Chen;Hongkang Yu;Liu Wei;Yucheng Wang;Ming Xiao;Jiangzhou Wang
{"title":"高速缓存海事无线网络中的 USV 浮标辅助多用户 MIMO 传输","authors":"Cheng Zeng;Jun-Bo Wang;Yijin Pan;Yijian Chen;Hongkang Yu;Liu Wei;Yucheng Wang;Ming Xiao;Jiangzhou Wang","doi":"10.1109/TVT.2025.3528915","DOIUrl":null,"url":null,"abstract":"Current maritime wireless networks face challenges in covering remote sea areas due to geographical limitations. To address the intolerable latency often encountered in long-range maritime communications, this paper proposes a collaborative transmission framework. Unlike traditional wired connections or fixed base stations, we employ an uncrewed surface vehicle (USV) as a mobile fronthaul for cache-enabled buoys deployed along shipping routes. Multiuser multiple-input multiple-output (MU-MIMO) technology is implemented to enhance diversity gain and reduce interference. In this setup, we leverage the tendency of fleet-based marine users to request similar contents, formulating a problem that jointly optimizes the USV trajectory and multicast beamforming to maximize the minimum rate among fleet members. Due to the coupling between trajectory and beamforming in the MIMO rate expression involving matrix inversion and <inline-formula><tex-math>$\\log \\det (\\cdot)$</tex-math></inline-formula> operations, we propose a trajectory-dependent equivalent rate transformation method, which eliminates the need for a block coordinate descent process. Using the Lagrange dual method, we derive a closed-form solution for buoy network-wide beamforming at each step. Simulations confirm that the USV-enabled wireless fronthaul and collaborative framework significantly reduce transmission latency.","PeriodicalId":13421,"journal":{"name":"IEEE Transactions on Vehicular Technology","volume":"74 5","pages":"8431-8436"},"PeriodicalIF":7.1000,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"USV-Buoy Assisted Multiuser MIMO Transmission in Cache-Enabled Maritime Wireless Networks\",\"authors\":\"Cheng Zeng;Jun-Bo Wang;Yijin Pan;Yijian Chen;Hongkang Yu;Liu Wei;Yucheng Wang;Ming Xiao;Jiangzhou Wang\",\"doi\":\"10.1109/TVT.2025.3528915\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Current maritime wireless networks face challenges in covering remote sea areas due to geographical limitations. To address the intolerable latency often encountered in long-range maritime communications, this paper proposes a collaborative transmission framework. Unlike traditional wired connections or fixed base stations, we employ an uncrewed surface vehicle (USV) as a mobile fronthaul for cache-enabled buoys deployed along shipping routes. Multiuser multiple-input multiple-output (MU-MIMO) technology is implemented to enhance diversity gain and reduce interference. In this setup, we leverage the tendency of fleet-based marine users to request similar contents, formulating a problem that jointly optimizes the USV trajectory and multicast beamforming to maximize the minimum rate among fleet members. Due to the coupling between trajectory and beamforming in the MIMO rate expression involving matrix inversion and <inline-formula><tex-math>$\\\\log \\\\det (\\\\cdot)$</tex-math></inline-formula> operations, we propose a trajectory-dependent equivalent rate transformation method, which eliminates the need for a block coordinate descent process. Using the Lagrange dual method, we derive a closed-form solution for buoy network-wide beamforming at each step. Simulations confirm that the USV-enabled wireless fronthaul and collaborative framework significantly reduce transmission latency.\",\"PeriodicalId\":13421,\"journal\":{\"name\":\"IEEE Transactions on Vehicular Technology\",\"volume\":\"74 5\",\"pages\":\"8431-8436\"},\"PeriodicalIF\":7.1000,\"publicationDate\":\"2025-01-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Vehicular Technology\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10840318/\",\"RegionNum\":2,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Vehicular Technology","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10840318/","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
USV-Buoy Assisted Multiuser MIMO Transmission in Cache-Enabled Maritime Wireless Networks
Current maritime wireless networks face challenges in covering remote sea areas due to geographical limitations. To address the intolerable latency often encountered in long-range maritime communications, this paper proposes a collaborative transmission framework. Unlike traditional wired connections or fixed base stations, we employ an uncrewed surface vehicle (USV) as a mobile fronthaul for cache-enabled buoys deployed along shipping routes. Multiuser multiple-input multiple-output (MU-MIMO) technology is implemented to enhance diversity gain and reduce interference. In this setup, we leverage the tendency of fleet-based marine users to request similar contents, formulating a problem that jointly optimizes the USV trajectory and multicast beamforming to maximize the minimum rate among fleet members. Due to the coupling between trajectory and beamforming in the MIMO rate expression involving matrix inversion and $\log \det (\cdot)$ operations, we propose a trajectory-dependent equivalent rate transformation method, which eliminates the need for a block coordinate descent process. Using the Lagrange dual method, we derive a closed-form solution for buoy network-wide beamforming at each step. Simulations confirm that the USV-enabled wireless fronthaul and collaborative framework significantly reduce transmission latency.
期刊介绍:
The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.