Unlicensed Spectrum-Sharing Mechanism Based on Wi-Fi Security Requirements Implemented Using Device to Device Communication Technology

Xing, Chigang; Li, Fangmin

doi:10.1109/access.2020.3011134

Cited by 10 publications

(5 citation statements)

References 37 publications

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“…Spectrum: Each radio device uses certain frequency bands for communication. The FCC (Federal Communications Commission) has defined unlicensed spectrum bands for unlicensed operations in scientific, industrial, and medical purposes [55]. These spectrum bands are often applied for low-power levels and short-range applications.…”

Section: Communication Technologymentioning

confidence: 99%

IoT-Enabled Smart Agriculture: Architecture, Applications, and Challenges

et al. 2022

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The growth of the global population coupled with a decline in natural resources, farmland, and the increase in unpredictable environmental conditions leads to food security is becoming a major concern for all nations worldwide. These problems are motivators that are driving the agricultural industry to transition to smart agriculture with the application of the Internet of Things (IoT) and big data solutions to improve operational efficiency and productivity. The IoT integrates a series of existing state-of-the-art solutions and technologies, such as wireless sensor networks, cognitive radio ad hoc networks, cloud computing, big data, and end-user applications. This study presents a survey of IoT solutions and demonstrates how IoT can be integrated into the smart agriculture sector. To achieve this objective, we discuss the vision of IoT-enabled smart agriculture ecosystems by evaluating their architecture (IoT devices, communication technologies, big data storage, and processing), their applications, and research timeline. In addition, we discuss trends and opportunities of IoT applications for smart agriculture and also indicate the open issues and challenges of IoT application in smart agriculture. We hope that the findings of this study will constitute important guidelines in research and promotion of IoT solutions aiming to improve the productivity and quality of the agriculture sector as well as facilitating the transition towards a future sustainable environment with an agroecological approach.

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Section: Communication Technologymentioning

confidence: 99%

IoT-Enabled Smart Agriculture: Architecture, Applications, and Challenges

et al. 2022

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“…Let's use the IEEE 802.11n protocol that operates on the 5 GHz range with orthogonal unlicensed channels as well as an RTS/CTS protocol. The key simulation parameters are summarized in Table 1, which are similar to the licensed spectrum parameters in [27] and unlicensed spectrum and WiFi parameters in [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32]. Fig.…”

Section: Resultsmentioning

confidence: 99%

“…The coexistence of LTEU and WiFi in unlicensed spectrum is considered in [22] by allowing D2D users to share a portion of unlicensed spectrum resources to meet the expected security requirements. The authors in [23] evaluated and studied the coexistence of IEEE 802.11ad Wireless Gigabit (WiGig) and NRU in the 60 GHz bands by taking into account various NRU parameters, such as beam forming, channel access, and bandwidth.…”

Section: Mathematicsmentioning

confidence: 99%

Developing capacity sharing strategy for vehicular networks with integrated use of licensed and unlicensed spectrum

2022

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A widely deployed cellular network, supported by direct connections, can offer a promising solution that supports new services with strict requirements on access availability, reliability, and end-to-end (E2E) latency. The communications between vehicles can be made using different radio interfaces: One for cellular communication (i.e., cellular communication over the cellular network based on uplink (UL)/downlink (DL) connections) and the other for direct communication (i.e., D2D-based direct communications between vehicles which allows vehicular users (V-UEs) to communicate directly with others). Common cellular systems with licensed spectrum backed by direct communication using unlicensed spectrum can ensure high quality of service requirements for new intelligent transportation systems (ITS) services, increase network capacity and reduce overall delays. However, selecting a convenient radio interface and allocating radio resources to users according to the quality of service (QoS) requirements becomes a challenge. In this regard, let’s introduce a new radio resource allocation strategy to determine when it’s appropriate to establish the communication between the vehicles over a cellular network using licensed spectrum resources or D2D-based direct connections over unlicensed spectrum sharing with Wi-Fi. The proposed strategy aims at meeting the quality of service requirements of users, including reducing the possibility of exceeding the maximum delay restrictions and enhancing network capacity utilization in order to avoid service interruption. The proposed solution is evaluated by highlighting different conditions for the considered scenario, and it is demonstrated that the proposed strategy improves network performance in terms of transmitted data rate, packet success rate, latency, and resource usage

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“…In reference [21,22], UAVs having multiple antennas function as relay nodes to transfer power and transmit information to the UEs located outside the network coverage area. D2D communication within the cluster utilizes an unlicensed spectrum to enhance the system spectrum efficiency for communication between CH and CMs [23]. However, it is challenging to utilize CHs to re-transmit the UAV's wireless signal to the UEs within its cluster during disasters.…”

Section: Related Workmentioning

confidence: 99%

Employing an Energy Harvesting Strategy to Enhance the Performance of a Wireless Emergency Network

Elshrkasi

Dimyati

Ahmad

et al. 2022

Sensors

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Establishing a wireless communication network (WCN) is critical to saving people’s lives during disasters. Since the user equipment (UE) must transfer their information to the functioning area, their batteries will be significantly drained. Thus, technologies that can compensate for battery power consumption, such as the energy harvesting (EH) strategy, are highly required. This paper proposes a framework that employs EH at the main cluster head (MCH) selected by the enhanced clustering technique (CFT) and simultaneously transmits information and power wirelessly to prolong the lifetime of the energy-constrained network. MCH harvests energy from the radio frequency signal via the relay station (RS) and uses the harvested energy for D2D communications. The suggested framework was evaluated by analyzing the EH outage probability and estimating the energy efficiency performance, which is expected to improve the stability of the network. Compared to the UAV scenario, the simulation findings show that when RS is in its optimal location, it enhances the network EH outage probability performance by 26.3%. Finally, integrating CFT with wireless communications links into cellular networks is an effective technique for maintaining communication services for mission-critical applications.

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Unlicensed Spectrum-Sharing Mechanism Based on Wi-Fi Security Requirements Implemented Using Device to Device Communication Technology

Cited by 10 publications

References 37 publications

IoT-Enabled Smart Agriculture: Architecture, Applications, and Challenges

IoT-Enabled Smart Agriculture: Architecture, Applications, and Challenges

Developing capacity sharing strategy for vehicular networks with integrated use of licensed and unlicensed spectrum

Employing an Energy Harvesting Strategy to Enhance the Performance of a Wireless Emergency Network

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