Department of Electrical and Electronics Engineering
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Item Cooperative Device-to-Device Relaying Network with Power Line Communications(IEEE, 2019) Joshi, SandeepCooperative device-to-device communication with non- orthogonal multiple access (NOMA) employing additional power line communication technology is an effective way to increase the coverage and spectral efficiency of the next generation hybrid networks. In this paper, we present the outage analysis of a cooperative network with NOMA and decode-and-forward relaying assuming a direct link between the base station and the users. We consider a relaying network consisting of a wireless link for the strong user and the weak user having both wireless and a wired link which is assumed as a power line link. The wireless links are subjected to Nakagami-m fading and the power line link experiences Rayleigh fading. The outage probability expressions for both the strong and the weak users are derived assuming power division NOMA and perfect successive interference cancellation at the receivers. We also derive the optimal value of the NOMA power allocation coefficient minimizing the outage probability at the strong user and obtain the range of the power allocation coefficient between the power line and the wireless link at the weak user. Furthermore, numerical results validate the derived analytical results.Item GATE Mentor 2016: Electronics and Communication Engineering(Cengage Learning India, 2015-01) Joshi, SandeepWith GATE Mentor, Cengage Learning Exam Crack SeriesTM brings a suite of products to cater to the needs of students appearing for the GATE (Graduate Aptitude Test in Engineering). Currently, GATE Mentor is available for Computer Science and Information Technology, Electronics and Communication, Electrical, Mechanical and Civil Engineering branches. Each book in this series is divided into three sections, namely, General Aptitude, Engineering Mathematics and the technical section. Each section is further divided into chapters comprising theory, solved examples, practice questions and previous years' questions with solutions. Each book also includes three solved model papers at the end. Understanding the need of current-day students, additional practice questions are made available on an Android App downloadable from Google Play. GATE Mentor books are authored by academicians from premier engineering colleges. While the technical section in GATE Mentor 2016: Electronics and Communication Engineering has been authored by Mr Sandeep Joshi and Dr G Naveen Babu, previously of Department of Electronics and Communication Engineering and Department of Electrical Engineering, respectively, at Shiv Nadar University, the section on Engineering Mathematics has been contributed by Dr Santosh Kumar Sengar of Department of Mathematics at the University of Dar es Salaam, Tanzania and the section on General Aptitude by Mr V Anand of JNTU Hyderabad. With adequate content to hone theoretical skills and ample solved questions for practice, the aspirants will be able to achieve success in the upcoming GATE examItem 5G in Healthcare: A Survey(Taylor & Francis, 2023) Joshi, SandeepThis text discusses problems and needs with the implementation of a 5G mobile communications system in the healthcare sector. It covers the issues related to advanced modulation schemes, telehealth, and remote diagnosis. It discusses important topics including virtual healthcare monitoring, spectrum sensing techniques, the role of 5G in medical applications, the role of nano- communication in healthcare informatics, and remote diagnosis. The text will be useful for graduate students, academic researchers, and professionals in the fields of electrical, and electronics and communication engineering, and allied healthcare. This book: Discusses novel architecture to manage the allocation of resources, and the interference issue among existing and advanced radios Provides focus to estimate the performance, cost and accommodation of the next generation technology design for the IoT, modern health- care, and education Covers advanced technologies and their role in healthcare Discusses key topics including spectrum access, advanced waveforms, which can help in standardization of 5G based smart hospital Explores the impact of telemedicine in smart healthcare This reference text covers the latest advances in the field of 5G mobile communication for healthcare informatics, addressing both original algorithm development and new applications of 5G mobile Communications.Item Channel Estimation and Performance Analysis of a Wide-FOV Visible Light Communication System With Random Receiver Orientation and Location(IEEE, 2023-03) Joshi, SandeepA practical visible light communications (VLC) system accounting for the effect of the random orientation and the random location of the photo-detector receiver is considered in this paper. The characterizations of the random orientation of the receiver, modeled as the receiver employing wide field of view (FOV) for data detection, and the random location of the receiver are utilized to derive the statistics for the scenarios in which (i) only the orientation of the receiver is random, (ii) only the location of the receiver is random, and (iii) both the orientation and location of the receiver are random. Furthermore, the receiver structures for a fully coherent VLC system and a VLC system employing the least-squares technique for channel estimation are proposed. Employing the receiver structures, the closed/series-form expressions for the symbol error probabilities are derived for all three scenarios of practical VLC channel models. The numerical results particularly show the crucial role of the ratio of the distance of the location of the receiver from the center of the receiving plane to the distance from the light-emitting diode (LED) to the center of the receiving plane in the performance of all the considered VLC systems.