Dr. Akinchan Das is working as an Assistant Professor in the Department of Electronics and Communication Engineering at Haldia Institute of Technology, West Bengal, India. He has received his PhD degree from Jadavpur University, Kolkata, India in the year of 2024. His research interests include Free space optical communication, channel design for B5G and 6G wireless standard, IRS technology for future wireless communication systems, networking, signal processing etc. He is the author of one book and more than 20 research papers published in National and International journals and conferences.
EDUCATION
PhD in Optical Wireless Communication
RESEARCH, TEACHING, or OTHER INTERESTS
Engineering, Statistics and Probability, Computer Networks and Communications, Electrical and Electronic Engineering
Impact of Shadowing in Relayed Hybrid FSO-mmWave RF Transmission System Banibrata Bag, Moumita Jana, Himadri Sekhar Das, Akinchan Das 2025 IEEE Guwahati Subsection Conference Gcon 2025, 2025 Integrating free space optics (FSO) and millimeter-wave (mmWave) technology presents a promising solution for far-field wireless communication. This paper analyzes a relayed FSO-mmWave RF downlink system in a line-of-sight (LoS) blockage terrain, exercising a decode-and-forward (DF) protocol. The Free Space Optics (FSO) link uses a Gamma-Gamma (G-G) distribution to address atmospheric turbulence and pointing inaccuracies, while the millimeter-wave (mmWave) RF link is characterized by a generalized K (G-K) distribution to account for fading and shadowing. We estimate the system’s performance in terms of outage probability, average BER, and capacity. Additionally, computer simulations of each metric are furnished to confirm our analytical findings. The results highlight the significant impact of shadowing in the RF link and atmospheric turbulence, and pointing errors in the FSO link. This reflects the necessity for maintaining high-quality FSO and RF links for reliability.
Channel Capacity for IRS-assist Wireless Communication System for 5G and Beyond Moumita Jana, Akinchan Das, Sanjay Kumar Proceedings of 2023 IEEE 3rd Applied Signal Processing Conference Aspcon 2023, 2023 The Smart radio environment or Intelligent Reflecting Surface (IRS) technique is the most arising technology for next-generation wireless standards due to the enriching abilities of the physical layer performance of the communication system. The mathematical framework of various types of channel capacity has been derived depending on the existence of channel state information (CSI) on the transmitter and receiver terminal in the proposed IRS-assist wireless communication system in this article. In this aspect, the Optimal Rate Adaption (ORA), Optimal Power and Rate Adaption (OPRA), Channel Inversion with Fixed Rate (CIFR), and Truncated Channel Inversion with Fixed Rate (TIFR), four various channel capacity policies are introduced here. Next, the combined influence of phase shift and quantization error on the different channel capacities has been observed under the proposed model. We have expressed new and accurate analytical closed-form expressions for every type of channel capacity strategy. Moreover, the accuracy of our analytical derivation has been checked by Monte Carlo simulation results from MATLAB.
Performance analysis of FSO links employing a transmit and receive diversity-based operating system under Malaga turbulence channels with pointing errors Akinchan Das, Banibrata Bag, Chayanika Bose, Aniruddha Chandra Optics Continuum, 2022 This paper represents the performance analysis of a transmit and receive diversity-based free-space-optical (FSO) communication system employing Alamouti space-time-block-code (STBC) and the switch-and-examine combining (SEC) technique at the transmitter end receiver section. The generalized Málaga statistical distribution has been considered to realize the effect of atmospheric turbulence with pointing error. A new unified analytical framework has been employed to obtain the closed-form expressions for various performance measures like outage probability, average bit error rate (BER), and average capacity of the said system. The results indicate that the performance gets better as the number of receiving antennas increases but only within the low signal to noise radio (SNR) region. Further, the optimum switching threshold scheme has been implemented for this proposed multi input multi output (MIMO) FSO system to achieve improved and optimum performances. However, applying the optimum switching threshold for SEC, the performance improvement is observed in the system’s outage and BER performance but not significantly in average capacity. Finally, the derived analytical expressions for each performance metric are validated through the corresponding Monte-Carlo simulations presented in various graphical plots.
ABER of an FSO Link in Gamma-Gamma Turbulence with SSK and SEC Akinchan Das, Banibrata Bag, Chayanika Bose, Aniruddha Chandra IEEE Vehicular Technology Conference, 2021 In this paper, we have analyzed the average bit error rate (ABER) performance of a multiple-input-multiple-output (MIMO) free-space optical (FSO) communication link employing both transmitter and receiver diversity techniques. For the proposed MIMO FSO system, we have considered spatial shift keying (SSK), a specific case of spatial modulation (SM), as the diversity technique used at the transmitter end. On the other hand, switch and examine combining (SEC) is utilized as a spatial diversity technique at the receiver terminal of the system. A mathematical framework has been constructed to get the resultant closed-form expression of the performance metric. Specifically, a tight upper bound for the average BER of the given system is derived. It is noticed that under any receiver diversity order the amount of ABER gets improved after crosses the certain SNR level, and the impact of resultant metric also depends on the nature of atmospheric turbulence and the optimal switching threshold of the receiver diversity scheme. The outcome mathematical expression is presented in terms of Meijer’s G function and all numerical results are validated by Monte Carlo (MC) simulations.
Improving the performance of a DF relay-aided FSO system with an additional source-relay mmWave RF backup Banibrata Bag, Akinchan Das, Chayanika Bose, Aniruddha Chandra Journal of Optical Communications and Networking, 2020 Atmospheric turbulence and pointing errors are major hindrances behind the proliferation of free-space-optics (FSO) technology in next-generation fronthaul networks. This paper investigates the effect of a decode-and-forward relay in overcoming these impairments and how an additional source-to-relay millimeter-wave (mmWave) radio-frequency (RF) backup link improves the performance of the relay-aided FSO system further; i.e., we study the performance of a hybrid FSO/(FSO-FSO)/(RF-FSO) system. Generalized Málaga distribution is adopted to model atmospheric turbulence in FSO links, whereas the fading statistics of the mmWave RF link is modeled by Nakagami-mdistribution. The performance of the hybrid system is studied on the basis of analytical expressions derived for metrics such as outage probability, bit error rate, and ergodic capacity, and the results show the supremacy of the proposed hybrid FSO system. The improvement is, however, dependent on factors such as turbulence location and signal-to-noise ratio per bit, and not all performance metrics exhibit equal improvement.
Link Quality of a RF-assisted Relayed FSO System under Turbulence, Pointing Error and Fading Banibrata Bag, Akinchan Das, Chayanika Bose, Aniruddha Chandra 2020 International Conference on Computer Electrical and Communication Engineering Iccece 2020, 2020 Link quality of a free-space-optical (FSO) link depends on atmospheric turbulence severity and pointing error due to optical beam misalignment. To improve reliability of a FSO link, an intermediate relay node may be used. The overall link quality may be further improved by using an additional radio-frequency (RF) link assisting the relay, as described in this paper. For assessing the link quality, we have considered three metrics, namely, probability of outage, average bit error rate and ergodic capacity. Analytical expressions for these three metrics have been found which contains easily computable Meijer’s G functions and the numerical results are verified through Monte Carlo simulations. The turbulence in FSO links is modelled with Málaga distribution whereas the fading in the RF link is modelled with Rayleigh distribution. For the FSO relay node a decode-andforward (DF) relaying protocol is assumed.
Hybrid FSO/RF-FSO systems over generalized Málaga distributed channels with pointing errors Banibrata Bag, Akinchan Das, Chayanika Bose, Aniruddha Chandra European Signal Processing Conference, 2019 The combined effect of Málaga distributed atmospheric turbulence and pointing errors on the performance of a hybrid free-space optical (FSO)/ radio-frequency (RF)-FSO communication system is presented and analyzed in this paper. We considered three performance metrics, namely, outage probability, average bit error rate (BER) and average capacity. For each of the performance metrics, closed-form expressions are derived in terms of the Meijer’s G function, analytical results are validated by Monte Carlo simulations and numerical values of the metrics are plotted for different channel conditions. Compared to a single FSO link or a single RF-FSO link, the proposed adaptive hybrid system achieves reduced outage probability, reduced BER and enhanced channel capacity at the cost of extra hardware.
BER of MIMO FSO link with Alamouti coding and SEC Akinchan Das, Banibrata Bag, Aniruddha Chandra Proceedings of the 2017 International Conference on Wireless Communications Signal Processing and Networking Wispnet 2017, 2017
Performance analysis of dual-hop AF relaying FSO system using alamouti scheme over G-G fading channel Proceedings 12th International Conference on Fiber Optics and Photonics Photonics 2014, 2014
Search for resonances decaying to an anomalous jet and a Higgs boson in proton-proton collisions at√ s= 13TeV A Hayrapetyan, TK Aarrestad, M Backhaus, G Bonomelli, C Cazzaniga, ... The European Physical Journal C 86 (2), 137 , 2026 2026
General search for supersymmetric particles in scenarios with compressed mass spectra using proton-proton collisions at V Chekhovsky, A Hayrapetyan, V Makarenko, A Tumasyan, W Adam, ... Physical Review D 112 (11), 112023 , 2025 2025 Citations: 1
Performance evaluation of IRS assist dual-hop communication system under path-loss M Jana, A Das, S Kumar AEU-International Journal of Electronics and Communications 199, 155849 , 2025 2025 Citations: 1
Impact of Shadowing in Relayed Hybrid FSO-mmWave RF Transmission System B Bag, M Jana, HS Das, A Das 2025 IEEE Guwahati Subsection Conference (GCON), 1-6 , 2025 2025
Combination and interpretation of differential Higgs boson production cross sections in proton-proton collisions at = 13 TeV V Chekhovsky, A Hayrapetyan, V Makarenko, A Tumasyan, W Adam, ... 2025
Test of lepton flavor universality in semileptonic 𝐵+ 𝑐 meson decays in proton-proton collisions at√ 𝑠= 13 TeV ES Bols, J D'Hondt, S Dansana, A De Moor, M Delcourt, S Lowette, ... Phys. Rev. D 111 (5), L051102 , 2025 2025
Test of lepton flavor universality in semileptonic 𝐵 meson decays in proton-proton collisions at = 13 TeV A Hayrapetyan, A Tumasyan, W Adam, JW Andrejkovic, T Bergauer, ... Physical Review. D. 111 (5) , 2025 2025
Measurement of the inclusive cross sections for W and Z boson production in proton-proton collisions at = 5.02 and 13 TeV N Null, A Hayrapetyan, A Tumasyan, W Adam, JW Andrejkovic, ... JOURNAL OF HIGH ENERGY PHYSICS 2025 (4) , 2025 2025
Study of same-sign W boson scattering and anomalous couplings in events with one tau lepton from pp collisions at√ s= 13 TeV N Null, A Hayrapetyan, A Tumasyan, W Adam, JW Andrejkovic, ... JOURNAL OF HIGH ENERGY PHYSICS 2025 (10), 1-49 , 2025 2025
Measurement of the Drell–Yan forward-backward asymmetry and of the effective leptonic weak mixing angle in proton-proton collisions at√ s= 13 TeV A Hayrapetyan, TK Aarrestad, K Androsov, M Backhaus, G Bonomelli, ... Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy … , 2025 2025 Citations: 11
for FSO Communication System RK Maity, A Das, J Samanta, J Bhaumik Proceedings of Third International Conference on Advanced Computing and … , 2024 2024
Low temperature Raman spectroscopic study of anharmonic and spin-phonon coupled quasi-two dimensional rare earth based francisites P Manna, S Kanthal, A Das, A Banerjee, S Bandyopadhyay Journal of Physics: Condensed Matter 36 (21), 215704 , 2024 2024 Citations: 1
The Combined ECC Scheme with Outer 3-Bit BEC and Inner SEC-DAEC Codes for FSO Communication System RK Maity, A Das, J Samanta, J Bhaumik International Conference on Advanced Computing and Applications, 49-63 , 2024 2024
POSTURE AS A THERAPEUTIC TOOL: ENHANCING BLOOD PRESSURE REGULATION THROUGH ISOMETRIC HANDGRIP AND DEEP BREATHING EXERCISES A DAS, DP SHARMA, A AGARWAL SHODHKOSH: JOURNAL OF VISUAL AND PERFORMING ARTS Учредители: Granthaalayah … , 2024 2024
Search for the Z boson decay to ttµµ in proton-proton collisions at vs= 13 TeV A Hayrapetyan, A Tumasyan, W Adam, J Andrejkovic, L Benato, ... Physical review letters , 2024 2024
Measurement of the τ lepton polarization in Z boson decays in proton-proton collisions at = 13 TeV N Null, A Hayrapetyan, A Tumasyan, W Adam, JW Andrejkovic, ... Journal of High Energy Physics 2024 (1) , 2024 2024
Search for Higgs boson pair production with one associated vector boson in proton-proton collisions at sqrt {s}= 13 TeV N Null, A Hayrapetyan, A Tumasyan, W Adam, JW Andrejkovic, ... JOURNAL OF HIGH ENERGY PHYSICS 2024 (10), 061-061 , 2024 2024
Search for Higgs boson pair production in the decay mode in proton-proton collisions at = 13 TeV A Benecke, G Bruno, C Caputo, C Delaere, IS Donertas, A Giammanco, ... Journal of High Energy Physics 7 , 2024 2024
Search for exotic decays of the Higgs boson to a pair of pseudoscalars in the μμ bb and ττ bb final states N Null, A Hayrapetyan, A Tumasyan, W Adam, JW Andrejkovic, ... EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS 84 (5) , 2024 2024
Channel capacity for irs-assist wireless communication system for 5g and beyond M Jana, A Das, S Kumar 2023 IEEE 3rd Applied Signal Processing Conference (ASPCON), 55-60 , 2023 2023 Citations: 3
MOST CITED SCHOLAR PUBLICATIONS
Performance analysis of hybrid FSO systems using FSO/RF-FSO link adaptation B Bag, A Das, IS Ansari, A Prokeš, C Bose, A Chandra IEEE Photonics Journal 10 (3), 1-17 , 2018 2018.0 Citations: 187
Free space optical links over Málaga turbulence channels with transmit and receive diversity A Das, B Bag, C Bose, A Chandra Optics Communications 456, 124591 , 2020 2020.0 Citations: 32
Improving the performance of a DF relay-aided FSO system with an additional source–relay mmWave RF backup B Bag, A Das, C Bose, A Chandra Journal of Optical Communications and Networking 12 (12), 390-402 , 2020 2020.0 Citations: 28
Search for new physics in the τ lepton plus missing transverse momentum final state in proton-proton collisions at = 13 TeV A Tumasyan, W Adam, JW Andrejkovic, T Bergauer, S Chatterjee, ... Journal of high energy physics 2023 (9) , 2023 2023.0 Citations: 24
Capacity analysis for Rayleigh/gamma-gamma mixed RF/FSO link with fixed-gain AF relay B Bag, A Das, A Chandra, C Bose IEICE Transactions on Communications 100 (10), 1747-1757 , 2017 2017.0 Citations: 20
Heavy neutrino search via the Higgs boson at the LHC A Das, Y Gao, T Kamon arXiv preprint arXiv:1704.00881 , 0 Citations: 15
Performance analysis of MIMO FSO link with Alamouti coding and switch-and-examine combining A Das, B Bag, C Bose, A Chandra Photonic Network Communications 36 (3), 350-360 , 2018 2018.0 Citations: 14
Measurement of the Drell–Yan forward-backward asymmetry and of the effective leptonic weak mixing angle in proton-proton collisions at√ s= 13 TeV A Hayrapetyan, TK Aarrestad, K Androsov, M Backhaus, G Bonomelli, ... Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy … , 2025 2025.0 Citations: 11
Magnetic properties and coupled spin-phonon behavior in quasi-one-dimensional screw-chain compound A Pal, K Anand, TW Yen, A Patra, A Das, SM Huang, E Blundo, ... Physical Review Materials 7 (1), 014402 , 2023 2023.0 Citations: 11
A novel low-cost bidirectional multimedia data transmission using optical fiber in RoF system B Bag, A Das, AS Das, S Mukherjee, AS Patra International Conference on Fibre Optics and Photonics, WPo. 44 , 2012 2012.0 Citations: 10
Hybrid FSO/RF-FSO systems over generalized Málaga distributed channels with pointing errors B Bag, A Das, C Bose, A Chandra 2019 27th European Signal Processing Conference (EUSIPCO), 1-5 , 2019 2019.0 Citations: 9
Sci. Rep. A Das, A Bhattarai, R Karn, B Tamang 2016.0 Citations: 8
A novel radio over fiber system for long haul single mode fiber transmission AS Das, B Bag, A Das, AS Patra International Journal of Soft Computing and Engineering (IJSCE) 3 (1) , 2013 2013.0 Citations: 8
Phytochemical screening of few Mysore plants AK Bhattacharjee, AK Das Econ. Bot 23 (3), 204-206 , 1969 1969.0 Citations: 8
The P-DESTRE: A Fully Annotated Dataset for Pedestrian Detection, Tracking, Re-Identification and Search from Aerial Devices. arXiv 2020 S Kumar, E Yaghoubi, A Das, B Harish, H Proença arXiv preprint arXiv:2004.02782 , 0 Citations: 8
Electrochemical performance of SrFeO 3-δ for application as a symmetric electrode in solid oxide fuel cells. ACS Appl Energy Mater6: 2049–2062 S Kumar, A Das, S Omar 2023.0 Citations: 5
ABER of an FSO link in Gamma-Gamma turbulence with SSK and SEC A Das, B Bag, C Bose, A Chandra 2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 1-5 , 2021 2021.0 Citations: 5
Performance analysis of fso links in turbulent atmosphere B Bag, A Das, A Chandra, R Róka Design, Implementation, and Analysis of Next Generation Optical Networks … , 2020 2020.0 Citations: 5
BER of MIMO FSO Link with Alamouti Coding and SEC BBAC A.Das IEEE WiSPNET 2017, 1852-1856 , 2017 2017.0 Citations: 5
