Convergence of broadband and broadcast/multicast in maritime information networks

Abstract

Recently, the fifth-generation (5G) of wireless networks mainly focuses on the terrestrial applications.However, the well-developed emerging technologies in 5G are hardly applied to the maritime communications, resulting from the lack of communication infrastructure deployed on the vast ocean, as well as different characteristics of wireless propagation environment over the sea and maritime user distribution. To satisfy the expected plethora of broadband communications and multimedia applications on the ocean, a brand-new maritime information network with a comprehensive coverage capacity in terms of all-hour, all-weather, and all-sea-area has been expected as a revolutionary paradigm to extend the terrestrial capacity of enhanced broadband, massive access, ultra-reliable, and low-latency to the vast ocean. Further considering the limited available resource of maritime communication infrastructure, the convergence of broadband and broadcast/multicast can be regarded as a possible yet practical solution for realizing an efficient and flexible resource configuration with high quality of services. Moreover, according to such multi-functionality and all-coverage maritime information network, the monitoring and sensing of vast ocean area relying on massive Ocean of Things and advanced radar techniques can be also supported. Concerning these issues above, this study proposes a Software Defined Networking (SDN) based Maritime Giant Cellular Network (MagicNet) architecture for broadband and multimedia services. Based on this network, the convergence techniques of broadband and broadcast/multicast, and their supporting for maritime monitoring and marine sensing are also introduced and surveyed.

Space-Air-Ground-Sea Integrated Networks: Modeling and Coverage Analysis

“…In [24], long-range (LR) Wi-Fi extends the connectivity to 60 km over the oceans using heterogeneous networks and relay nodes. Authors in [25] propose to build a broadband and broadcast/multicast maritime communication network to enhance the CP of the ocean of things. In this paper, shore towers, insular towers, and seaborne floating towers are included providing a hybrid communication link, and the concepts of "one-to-one" and "one-to-all" are quite suitable for a regional application scenario.…”

Two-Stage Constructions for the Rate-Compatible Shortened Polar Codes

“…At the end of 2016, polar codes were selected as the candidate coding scheme for the fifth-generation (5G) mobile communications, and were finally adopted as the coding standard for the uplink/downlink channel control [3] . Polar codes can also find applications for the secure transmission over parallel relay channels [4] and the 5Gbased maritime communications [5] .…”

Improved Artificial Potential Field Algorithm Assisted by Multisource Data for AUV Path Planning

“…However, due to the development of technology and the unknown as well as complex environment, 95% of the ocean remains unexplored. Autonomous underwater vehicles (AUVs) have been widely used in environmental observation, resource exploration, biological surveying, auxiliary positioning, and other underwater tasks by virtue of their autonomy and maneuverability [ 1 , 2 , 3 ]. In order to meet the needs of marine development, strict requirements have been proposed for the automation of AUVs.…”