Qualification: 
M.Tech, B-Tech
p_vineeth@cb.amrita.edu

Vineeth Palliyembil currently serves as Assistant Professor at the Department of Electronics and Communication Engineering, School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore Campus.

Vineeth joined Amrita Vishwa Vidyapeetham, Coimbatore campus, on July 1, 2019. He received his B. Tech. degree in Electronics and Communication Engineering from National Institute of Technology, Calicut, Kerala, India, in 2012, and M. Tech. degree in Communication Systems from the National Institute of Technology(NIT), Tiruchirappalli, Tamil Nadu, India, in 2015. He is pursuing his Ph. D.in Free Space Optical Communication with the Department of Electronics and Communication Engineering, NIT, Tiruchirappalli, India, from 2015 and has submitted his research thesis. His research interests include Optical Wireless Communication, Free Space Optical Communication and Wireless Communication.

Education

  • 2015 Onwards: Pursuing Ph. D. (Free Space Optical Communication)
    NIT Trichy
  • 2015M.Tech. Communication Systems
    NIT Trichy

Professional Appointments

Year Affiliation
2019 - Present Assistant Professor, Amrita Vishwa Vidyapeetham
Domain: Teaching and Labs

Publications

Publication Type: Conference Paper

Year of Publication Title

2019

J. Anandpushparaj, Vineeth Palliyembil, Nadiminti, L. G., Magarini, M., and Muthuchidambaranathan, P., “Performance Analysis of UAV Cellular Communications”, in 2019 TEQIP III Sponsored International Conference on Microwave Integrated Circuits, Photonics and Wireless Networks (IMICPW), 2019.[Abstract]


The days that are to come where remote-controlled aerial vehicles can occupy our skies are quick approaching thanks to the introduction of efficient and reliable tiny aerial vehicles and therefore the increasing demand to be used of such vehicles in an exceedingly excess of civil applications. It is necessary to grasp the characteristics of networks with aerial vehicles to deploy multiple UAVs into the air traffic in a secured and safe manner. In this paper, we analyze the downlink channel performance of cellular connected UAVs located at different heights. We determine the average path loss that can be occurred from the base station to an aerial vehicle located at different heights. We observe that due to the line of sight links interference power is more which leads to poor signal to interference plus noise ratio. In order to increase the throughput and suppress the interference, we employ linear precoding at the transmitter side by assuming perfect channel state information at the base station. We determine the data rates that can be achieved over a 10MHz system bandwidth in downlink when various precoding techniques are applied at transmitter base station. Our results conclude that the achievable data rates decline as the UAV reaches higher altitudes due to more interference power receiving from other base stations.

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2019

Vineeth Palliyembil, Jagadeesh, V. K., and Muthuchidamdaranathan, P., “Analysis of Free Space Optical DPSK-SIM Based Communication System over Málaga Distributed Channel with Misalignment Fading”, in 2019 TEQIP III Sponsored International Conference on Microwave Integrated Circuits, Photonics and Wireless Networks (IMICPW), 2019.[Abstract]


Optical wireless communication can provide high speed, secure and cost effective broadband connection to the common end-users. The channel for optical wireless or free space optical communication (FSOC) can be well modeled using the Málaga distributed turbulence ($\mathcalM$-distribution) channel which is a newly proposed generalized channel model. In this paper, the performance of a single input single output FSOC link over $\mathcalM$-distribution turbulence fading channel in the presence of misalignment fading (pointing error) is studied. At the transmitter, the Differential phase shift keying (DPSK) subcarrier intensity modulation (SIM) is used for sending the symbols. The closed form expressions for the bit error rate, ergodic channel capacity and the outage probability together with their asymptotic performance at high received signal-to-noise ratio are derived to study the overall system performance against the channel fading.

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2019

V. K. Jagadeesh, Vineeth Palliyembil, Ansari, I. Shafique, Muthuchidambaranathan, P., and Qaraqe, K. A., “Performance Analysis of Relay Assisted Mixed Dual-Hop RF-FSO Systems with Pointing Errors”, in Boyaci A., Ekti A., Aydin M., Yarkan S. (eds), International Telecommunications Conference, Lecture Notes in Electrical Engineering, Singapore, 2019.[Abstract]


In this work, a fixed-gain amplify-and-forward (AF)- relay assisted dual-hop RF-FSO communication system with pointing errors is analyzed by considering Rayleigh/Málaga ( M )- distributed turbulence channel. For this mixed RF-FSO cooperative system, a novel closed form analytical expressions are obtained for moment generating function (MGF), outage probability and average bit error rate (BER) for various binary and M-ary modulation techniques. Additionally, by using the asymptotic expansion of the Meijer’s G function at the high SNR regime, we derive new asymptotic expressions for the CDF, outage probability, and the average BER in terms of simple elementary functions.

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2019

V. K. Jagadeesh, Vineeth Palliyembil, Ansari, I. Shafique, Muthuchidambaranathan, P., and Qaraqe, K. A., “Performance Analysis of Relaying FSO System over M-Distributed Turbulent Channel with Variable Gain AF Protocol”, in Boyaci A., Ekti A., Aydin M., Yarkan S. (eds), International Telecommunications Conference, Lecture Notes in Electrical Engineering, Singapore, 2019.[Abstract]


In this work, the performance of an all optical relaying free space optical (FSO) system over Málaga ( M )-distributed turbulent channel is analyzed with variable gain amplify and forward (AF) protocol. For the relay system, the approximate cumulative distribution function (CDF) expression of the output signal to noise ratio (SNR) is derived and corresponding outage probability, channel capacity and asymptotic bit error rate (BER) are analyzed for different modulation schemes in the presence of pointing errors.

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2015

V. K. Jagadeesh, Vineeth Palliyembil, Muthuchidambaranathan, P., and Bui, F. M., “Channel capacity and outage probability analysis of sub carrier intensity modulated BPSK system over M-distribution free space optical channel”, in 2nd International Conference on Electronics and Communication Systems (ICECS), Coimbatore, 2015.[Abstract]


In this paper, the performance analysis of a subcarrier intensity-modulated free-space optical (SIM-FSO) communication system is investigated for the generalized channel model known as M-distribution channel, and new closed-form analytical expressions are derived for the outage probability and average channel capacity of the system. Since, the turbulence-induced fading model considered is the generalized one, the expressions obtained can be applied for performance analysis of SIM-FSO communication systems for most of the previously existing channel models.

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Publication Type: Journal Article

Year of Publication Title

2019

J. Vellakudiyan, Vineeth Palliyembil, Ansari, I. S., Muthuchidambaranathan, P., and Qaraqe, K. A., “Performance analysis of the decode-andforward relay-based RF-FSO communication system in the presence of pointing errors”, IET Signal Processing, vol. 13, no. 4, pp. 480-485, 2019.[Abstract]


This study focuses on the analysis of a decode-and-forward relay-based asymmetric radio frequency-free space optical (RF-FSO) communication system. These types of communication systems are of very high speed, secure, and costeffective. Such systems can be used to provide the last-mile access to many household users and can provide temporary network access during disasters and link failures. In the communication model analysed, the RF path is considered as Rayleigh fading, and the FSO path is considered as Málaga (M)-distributed turbulence fading with the pointing error. Two types of detection schemes consisting of intensity modulation/direct detection and heterodyne detection are considered at the receiver for the analysis. For this cooperative communication system, novel mathematical expressions for the cumulative distribution function, probability density function, and moment generating function of the end-to-end signal-to-noise ratio are derived. With the aid of these statistical characteristics, new closed mathematical formulations are obtained for outage probability and the average bit error rate for different binary and M-ary modulation approaches. © The Institution of Engineering and Technology 2019.

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2018

Vineeth Palliyembil, Vellakudiyan, J., and Muthuchidambaranathan, P., “Asymptotic bit error rate analysis of free space optical systems using spatial diversity”, Optics Communications, vol. 427, pp. 617-621, 2018.[Abstract]


Free space optical (FSO) communication is used to provide very high speed network connection to end users, especially the last mile users thereby enabling cost-effective, fast and secure internet service to them. But the single input single output (SISO) connection is highly hampered by the atmospheric turbulence and pointing error of the link. As a solution to this problem, the spatial diversity technique can be used to improve the communication service. The bit error rate (BER) analysis for the received signal to noise ratio (SNR) is analyzed in this paper to study the performance improvement over the SISO case for the system over the generalized atmospheric turbulence channel known as the Málaga turbulence channel. A new expression for the BER in terms of the beta function is derived and the diversity gain and coding gain are obtained from the same. © 2018 Elsevier B.V.

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2018

Vineeth Palliyembil, Vellakudiyan, J., Muthuchidamdaranathan, P., and Tsiftsis, T. A., “Capacity and outage probability analysis of asymmetric dual-hop RF-FSO communication systems”, IET Communications, vol. 12, no. 16, pp. 1979-1983, 2018.[Abstract]


Free space optical (FSO) communication systems have high bandwidth, cost effectiveness and can provide secure wireless communication service for users. They can also form asymmetric dual-hop cooperative communication links by multiplexing numerous radio frequency (RF) users by using amplify-forward transmissions over the FSO channel after converting to optical signals. In this study, an asymmetric dual-hop RF-FSO system is studied where the RF links follow the well-known Nakagami-m fading distribution and the FSO channel is efficiently modelled by the Málaga turbulence fading. The performance of the system is studied by deriving the closed-form expressions for the outage probability and ergodic channel capacity together with their asymptotic analysis at high signal-to-noise ratio. The numerical results are corroborated by Matlab analytical plots. © The Institution of Engineering and Technology 2018.

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2016

J. Vellakudiyan, Ansari, I. S., Vineeth Palliyembil, Muthuchidambaranathan, P., and Qaraqe, K. A., “Channel capacity analysis of a mixed dual-hop radio-frequency-free space optical transmission system with Málaga distribution”, IET Communications, vol. 10, no. 16, pp. 2119-2124, 2016.[Abstract]


In this study, the channel capacity performance of a dual-hop asymmetric radio-frequency-free space optical (RF-FSO) communication system in the presence of pointing errors is presented. Here, both fixed-gain amplify and forward (AF) and decode and forward (DF) relays are considered. The RF link experiences Rayleigh fading and the FSO link experiences Málaga distributed turbulence channel. For this mixed RF-FSO cooperative system, novel mathematical expressions for cumulative distributive function (CDF) and the channel capacity are derived and performance is analysed with both fixed-gain AF and DF relays in the presence of pointing errors. In addition, the authors derive the asymptotic expressions for the CDF and the channel capacity derived earlier in terms of Meijer's G function in the high signal-to-noise ratio regime. © The Institution of Engineering and Technology.

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2015

J. Vellakudiyan, Muthuchidambaranathan, P., Bui, F. M., and Vineeth Palliyembil, “Performance of a subcarrier intensity modulated differential phase-shift keying over generalized turbulence channel”, AEU - International Journal of Electronics and Communications, vol. 69, no. 11, pp. 1569-1573, 2015.[Abstract]


Optical wireless communication technologies are finding a greater interest and wider attention within the research community of late. In this paper, we investigate the performance of a free space optical communication system over a generic propagation model called M-distributed channel in the presence of atmospheric turbulence. We analyzed a Subcarrier intensity-modulated free-space optical (SIM-FSO) communication system using DPSK and closed form expressions are derived using Meijer G function for bit error rate, channel capacity and outage probability for M-distribution. © 2015 Elsevier GmbH. All rights reserved.

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2015

V. Jagadeesh, Vineeth Palliyembil, Muthuchidambaranathan, P., and Bui, F. M., “Free space optical communication using subcarrier intensity modulation through generalized turbulence channel with pointing error”, Microwave and Optical Technology Letters, vol. 57, no. 8, pp. 1958-1961, 2015.[Abstract]


Free Space Optical (FSO) Communication Systems are wireless systems capable of providing high speed, secure and cost effective communication between two entities. The channel for FSO is expressed in terms of the Malaga-distribution model. It is a generalized channel model encompassing all the channel conditions and previous models. In this work, the performance of a Subcarrier Intensity Modulation FSO system is analyzed by considering the ill effects channel turbulence and pointing error and derived a closed form analytical expression for bit error rate and channel capacity. The results demonstrate the performance deterioration the system suffers because of the channel and alsohow the m-distribution model can be used to obtain the performance over other FSO channels. © 2015 Wiley Periodicals, Inc.

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