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A. F. M. Shahen Shah
Unmanned aerial vehicles (UAVs) are valued in 5G and 6G networks due to their communication capabilities, low cost, and flexible deployment. Recently, UAV-aided emergency networks in disasters have been designed where one single large UAV is used. Compar...
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Muhammad Amish Hasan, Tanveer Ahmad, Asim Anwar, Salman Siddiq, Abdul Malik, Waseem Nazar and Imran Razzaq
Nonorthogonal multiple access (NOMA), one of the favorable candidates of next-generation wireless networks combined with group device-to-device (D2D) networks, can sufficiently increase a system?s spectral efficiency. In fact, in a cooperative scenario, ...
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Jianying Wang, Hongxi Yin, Xiuyang Ji and Yanjun Liang
Both the long-term beam spreading caused by ocean turbulence and the pointing errors induced by the jitter of transmitters and receivers degrade the performance of underwater wireless optical communication (UWOC) links. To effectively alleviate their eff...
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Thanh-Nam Tran, Van-Cuu Ho, Thoai Phu Vo, Khanh Ngo Nhu Tran and Miroslav Voznak
The requirements of low latency, low cost, less energy consumption, high flexibility, high network capacity, and high data safety are crucial challenges for future Internet of Things (IoT) wireless networks. Motivated by these challenges, this study deal...
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Ke Wang, Chan-Tong Lam and Benjamin K. Ng
Reconfigurable intelligent surface (RIS) has been envisioned as one of the promising solutions for enhancing signal transmissions in high-speed communications (HSC). In this paper, we present a time-varying channel model with distance-dependent Rician fa...
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Kavitha Rani Balmuri, Srinivas Konda, Wen-Cheng Lai, Parameshachari Bidare Divakarachari, Kavitha Malali Vishveshwarappa Gowda and Hemalatha Kivudujogappa Lingappa
Nowadays, the Long-Term Evolution-Advanced system is widely used to provide 5G communication due to its improved network capacity and less delay during communication. The main issues in the 5G network are insufficient user resources and burst errors, bec...
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Zhihui Shang, Tao Zhang, Yueming Cai, Weiwei Yang, Hao Wu, Yu Zhang and Liwei Tao
This paper studies the secure transmission in the dual-hop cognitive wiretap networks, where the secondary transmitter (Alice) aims to transmit confidential information to the secondary receiver (Bob) in the face of a multi-antenna relay (Relay), while t...
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Zhipeng Liu, Guangyue Lu, Yinghui Ye and Liqin Shi
Compared with the conventional simultaneous wireless information and power transfer (SWIPT) based relaying with ?harvest-then-forward? protocol, the battery-assisted SWIPT relaying is more practical and powerful due to the joint use of the harvested ener...
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Ibrahim Ismael Alnaib,Omar Sh. Alyozbaky,Ali Abbawi
Pág. 6 - 16
Faults in the power system generally provide considerable changes in its quantities such as under or over-power, over-current, current or power direction, frequency, impedance, and power factor. Reading data related to both currents and voltages is usual...
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Ahmed Al-Saman, Marshed Mohamed, Michael Cheffena, Marwan H. Azmi and Tharek A. Rahman
This paper presents rain attenuation effects on the performance of the full-duplex link in a tropical region based on one-year measurement data at 73.5- and 83.5-GHz E-band for distances of 1.8 km (longer links) and 300 m (shorter links). The measured ra...
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