Construction and Application for Operation-BusinessOriented Mobile GIS Service Platform by Jia Wu, Dan Su, Wang Li, Weiguo Yuan, Rui Yang

“…Therefore，based on geographic information system，GPS and wireless communications technology，a unified mobile GIS application platform was constructed. …”
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High Isolation Millimeter-Wave Wideband MIMO Antenna for 5G Communication by Fei Wang, Zhaoyun Duan, Xin Wang, Qing Zhou, Yubin Gong

“…Both simulated and measured results show that this proposed MIMO antenna is suitable for the future wireless communications.…”
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Development Analysis and Perspective on LTE Current Status by Wenyu Li, Lina Song, Xiumiao He

“…Long term evolution technology（LTE）is a new generation of wireless communications technology. LTE has experienced a rapid development process since 2010. …”
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Resource Allocation of Distributed Heterogeneous Network Based on CoMP Transmission by Jia Yu, Ye Wang, Shaohua Wu, Qinyu Zhang

“…Improving utilization of radio resource is a promising solution to alleviate the contradiction between increasing wireless communications demands and limited radio resources of wireless transmission. …”
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Some Identities of the Frobenius-Euler Polynomials by Taekyun Kim, Byungje Lee

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Quantum Two-Way Protocol Beyond Superdense Coding: Joint Transfer of Data and Entanglement by Kristian S. Jensen, Lorenzo Valentini, Rene B. Christensen, Marco Chiani, Petar Popovski

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Research Status of Space-air-ground Integrated Network and Application Prospects of New Technologies by Xiaokai ZHANG, Daoxing GUO, Bangning ZHANG

“…To achieve the demand of all-time all-area coverage of wireless communications, space-air-ground integrated network (SAGIN) is important systematic development direction with global coverage, optional reception, and proportional demand service, which deeply integrate the satellite-based network, aerial-based network, and terrestrial-based network to break down the systematic barriers of each network and give full play to the functions of diff erent network dimensions.The development process of the SAGIN from the aspects of policy orientation, academic innovation, standards and norms were discussed.At the same time, the applications of the new emerged technology in the SAGIN were prospected, and the possible development direction of the SAGIN in the future was discussed.…”
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Dual Polarized Dual Fed Vivaldi Antenna for Cellular Base Station Operating at 1.7–2.7 GHz by Marko Sonkki, Sami Myllymäki, Jussi Putaala, Eero Heikkinen, Tomi Haapala, Harri Posti, Heli Jantunen

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Low-Complexity Architecture of Orthogonal <italic>N</italic>-Continuous Precoding for Sidelobe Suppression of OFDM Signals and Its Analysis by Hikaru Kawasaki, Fumihide Kojima, Takeshi Matsumura

“…High sidelobes of orthogonal frequency-division multiplexing (OFDM) signals must be resolved for future wireless communications. In this study, we propose and analyze an efficient orthogonally linear precoding to suppress the sidelobes in OFDM systems. …”
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Opportunistic cooperative spectrum sensing based on eigenvalue ratio of random matrix by Wuji ZHANG, Shunlan LIU, Jianrong BAO

“…To overcome the deficiencies of low detection probability of traditional spectrum sensing,an EROC spectrum sensing algorithm based on the eigenvalue ratio of a random matrix was proposed.Based on the random detection theory,it used double thresholds and opportunistic cooperation to improve of traditional maximum and minimum eigenvalue (MME) algorithm,and it retained the advantages of the traditional energy detection algorithm.Moreover,on the premise of known false alarm probability,the decision threshold was deduced,and the odd-even slot division was used to effectively realize opportunistic cooperation in reception.Simulation results show that the proposed spectrum sensing algorithm has higher detection probability than MME algorithms in case of low signal-to-noise ratio and low false alarm probability.Therefore,it is suitable for application in wireless communications with deteriorate transmission channels.…”
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Improved Pilot-Aided Channel Estimation for MIMO-OFDM Fading Channels by J. Mar, Chi-Cheng Kuo, M. B. Basnet

“…The space-frequency block code-OFDM (SFBC-OFDM) system and a six-path fading channel model are considered as an example of the high mobility MIMO-OFDM wireless communications system. Through simulations it is shown that SFBC-OFDM system using the proposed approach can satisfy the performance requirements over frequency selective and frequency nonselective fast fading channels.…”
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A Single-Layer S/X- Band Shared Aperture Antenna with MIMO Characteristics at X-Band for Airborne Synthetic Aperture Radar Applications by Raja Babu Bandi, Venkata Kishore Kothapudi, Lakshman Pappula, Rajkumar Kalimuthu, Srinivasa Kiran Gottapu

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Exploiting social reciprocity for auction-based spectrum allocation in femtocell networks by Feng Zhao, Haibo Tang, Hongbin Chen

“…With the explosive demand for wireless communications, users are always experiencing poor quality-of-services. …”
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Integration of Resonant Coil for Wireless Power Transfer and Implantable Antenna for Signal Transfer by Dong-Wook Seo, Jae-Ho Lee, Hyungsoo Lee

“…While the resonant coils resonate at the frequency of 13.56 MHz for the WPT, the implantable antenna works in the medical implant communications service (MICS) band of 402–405 MHz for wireless communications. They share the narrow substrate area of a bar-type shape; the coil has the current path on the outer part of the substrate and the meandered planar inverted-F antenna (PIFA) occupies the inside of the coil. …”
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Pulse state-interval modulation and experiment in the hostile environments by Yi-ning MU, He WANG, Ping LI, Hui-lin JIANG

“…Based on the Shannon classical communication theory,the atmospheric modulation model of wireless laser communication was investigated for enhancing wireless laser communication adaptability of the atmospheric channel.Firstly,the conversion relations of SER and BER was discussed,from error theory perspectives analysis atmospheric optical wireless communications.Afterwards,by analyzing Shannon limit communication rate of wireless laser communication in atmospheric channel,the importance of atmospheric channel bandwidth gradually came out.On the basis of this,an efficiency pulse state-interval coded modulation was present and its characteristics were estimated.Finally,the feasibility of the PSIM and the importance of atmospheric channel bandwidth to wireless laser communication were proved by wireless laser communication experiment in the hostile environments,At the end,a prospect was pointed out that atmospheric channel properties feedback technique in real time might be a key and precondition in all-weather wireless optical communication.…”
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Some Identities of Symmetry for the Generalized Bernoulli Numbers and Polynomials by Taekyun Kim, Seog-Hoon Rim, Byungje Lee

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Adaptive Security Solutions for NOMA Networks: The Role of DDPG and RIS-Equipped UAVs by Syed Zain Ul Abideen, Abdul Wahid, Mian Muhammad Kamal

“…This method not only shows how flexible and successful the DDPG algorithm is at protecting wireless communications when used in conjunction with an RIS but it also highlights how much the algorithm has advanced secure communication systems.…”
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Maximizing the Rate of IRS-Assisted Downlink NOMA Systems by Xinying Li, Haixia Wei, Haiyan Huang, Cuiran Li, Lijun Zhang

“…Nonorthogonal multiple access (NOMA) techniques and intelligent reflecting surface (IRS) are being explored as potential essential technologies for future wireless communications. Accordingly, this paper provides a network framework for IRS-aided downlink NOMA transmission, in which IRS is employed to improve the NOMA system’s transmission performance, and optimization problems are raised to maximize the achievable rate. …”
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A Novel Mining Approach for Data Analysis and Processing Using Unmanned Aerial Vehicles by Ali Alenezi, Ahmad Sawalmeh, Hazim Shakhatreh, Muhannad Almutiry, Nasser Aedh Alreshidi

“…Usually, these missions are performed in remote areas that do not have a wireless communications infrastructure. This paper proposes to use the unmanned aerial vehicle (UAV) as a relay communication node between the exploration team and the ground control station (GCs). …”
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The optimal design of an LNA by using of CAD tool based on the modified inclined planes system optimization by Najmeh Shahraki, Ali Mohammadi

“…Low Noise Amplifier (LNA) is the first critical and important element in the designing of analog VLSI systems and wireless communications technology. In this paper, in order to establish an appropriate trade-off between the contradictory design objectives of an LNA circuit and the improvement of its efficiency and optimality indexes, a Computer-Aided Design (CAD) tool has been used based on the use of soft computing techniques including meta-heuristic intelligent optimization methods. …”
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