Quality of Service Provisions for Maritime Communications Based on Cellular Networks

Xu, Yanli

doi:10.1109/access.2017.2763639

Cited by 38 publications

(25 citation statements)

References 29 publications

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“…Depending on the application requirements or the boat characteristics, different technologies have been adopted. In the case of boats or ships without payload or power consumption restrictions, cellular communications or WiMAX technologies have been proposed [1,6]. However, other scenarios such as those comprising sailboats, small autonomous vehicles, or moored sensing platforms, among many others, present severe energetic restrictions as the communication modules are usually powered by batteries.…”

Section: Introductionmentioning

confidence: 99%

Tracking and Monitoring System Based on LoRa Technology for Lightweight Boats

et al. 2018

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Maritime communications are really challenging due to the adverse transmission conditions and the lack of a pre-provided infrastructure for supporting long range connectivity with land. Communications in high seas are usually covered by satellite links that are expensive and lead to high power consumption by the terminals. However, in areas closer to the shore, other communication options have been adopted for different kinds of services such as boat tracking and telemetry, data collection from moored monitoring systems, etc. In these scenarios, technologies such as cellular communications or wireless sensor networks have been employed so far; nevertheless, all of them present different drawbacks mostly related with the coverage and energy-efficiency of the system. Recently, a novel communication paradigm, so-called Low Power-Wide Area Network (LP-WAN) has gained momentum due to its interesting characteristics regarding transmission distances and end-node’s power consumption. The latter may be of great interest for ships with energetic restrictions such as small sailboats, recreational boats, or radio control ships. For that reason, in this work, we present a boat tracking and monitoring system based on LoRa (Long Range), one of the most prominent LP-WAN technologies. We provide a comprehensive overview of this communication solution as well as a discussion addressing its benefits when applied to maritime scenarios. We present the results extracted from a case of study, where real-training sessions of Optimist Class sailboats have been monitored by means of the presented architecture, obtaining good levels of coverage and link-reliability with limited power consumption. A transmission range study is also presented, demonstrating the validity of this proposal for monitoring activities inside the port or maneuvers close to the shore.

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Section: Introductionmentioning

confidence: 99%

Tracking and Monitoring System Based on LoRa Technology for Lightweight Boats

et al. 2018

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“…Moreover, upon increasing the group size, the benefit of a large number of antennas becomes obvious. Specifically, when the number of antennas of BSA and of the RNs increases from (12,8) to (16,12), the system's total transmit power is reduced by 2.7 dBW in the context of the group size of 1, whilst by as much as 9 dBW, when the group size is 5. In Fig.…”

Section: B Beamforming Vector Optimization For Bsamentioning

confidence: 99%

“…The problem in (16) indicates that the optimal W s should maximize the desired signal power in the numerator of (10), while minimizing the interferences, i.e. the first three terms of the denominator of (10), as well as the total transmit power.…”

Section: Appendix a Proof Of Theoremmentioning

confidence: 99%

“…In [14], Wei et al proposed a joint vessel-position and transmit power optimization scheme to mitigate the pilot contamination problem in the costal multi-cell multi-user MIMO systems when the associated pilots are not orthogonal to each other. Moreover, benefits of the fog computing and of a large number of distributed antennas (DAs) were quantified in the context of maritime communication systems by Yang et al and Xu et al in [15] and [16], respectively.…”

Section: Introductionmentioning

confidence: 99%

“…The system's total transmit power versus the target SINR parameterized by different number of relay nodes with (NB, NR) =(16,8). The system's total transmit power in terms of different optimization schemes with (S, NB, NR) =(4,16,8).…”

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Joint Multicast Beamforming and Relay Design for Maritime Communication Systems

Duan

Wang

Zhang

et al. 2020

IEEE Trans. on Green Commun. Netw.

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With growing human maritime activities, supporting low-cost and high-speed information services for users at sea has become imperative. However, traditional means of maritime communications fail to provide high rate services due to their high cost and limited bandwidth. In this paper, considering a base station ashore and several offshore relay nodes, we propose a cooperative multicast communication scheme for maritime users relying on joint beamforming (BF) optimization and relay design. Specifically, we decompose our proposed joint optimization problem into two subproblems, which can be solved by the feasible point pursuit successive convex approximation approach. Furthermore, an alternating optimization algorithm is proposed, which imposes an exponentially increasing complexity as a function of the number of BF elements and the number of relays, when aiming for finding the globally optimal solution. In order to reduce this excessive computational complexity, a low-complexity distributed algorithm is also conceived and its closed-form solution is derived. Finally, the simulation results provided show that our proposed algorithm is beneficial in terms of increasing both the throughput as well as the energy efficiency.

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Performance analysis of non‐orthogonal multiple access assisted cooperative maritime communication system over two‐wave with diffuse power fading

Makkar

Soni

Rawal

et al. 2022

Trans Emerging Tel Tech

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Non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) communication are two promising technologies to fulfill the high throughput and reliable communication requirements. Maritime communication systems use a generalized fading at near-sea-surface channels (for seashore to ship/boat/fishing fleet communication) to provide reliable communication due to atmospheric turbulence. Experimental research on generalized two-wave diffuse power (TWDP) fading reveal the footprints of mmWave. This article proposes novel exact and asymptotic closed-form expressions of average symbol error probability (ASEP) of NOMA users for cooperative maritime communication systems over TWDP fading with the different modulations. The end-to-end closed-form expressions are derived in terms of Appell's and Lauricella's hypergeometric functions. Also, the ASEP is shown using the power allocation factor for different modulation schemes. The proposed system provides better transmission reliability using generalized TWDP fading. Further, the outage probability of the system described above is analyzed using the distance, path loss exponent, transmission rate, and Rician factor as performance metrics for both the NOMA users. Effects of fading outage parameters on the system performance are studied. The end-to-end exact numerical results have been verified with the Monte-Carlo simulations that validate with asymptotic results at a high SNR regime.

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Quality of Service Provisions for Maritime Communications Based on Cellular Networks

Cited by 38 publications

References 29 publications

Tracking and Monitoring System Based on LoRa Technology for Lightweight Boats

Tracking and Monitoring System Based on LoRa Technology for Lightweight Boats

Joint Multicast Beamforming and Relay Design for Maritime Communication Systems

Performance analysis of non‐orthogonal multiple access assisted cooperative maritime communication system over two‐wave with diffuse power fading

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