D
D. Sriram Kumar
Researcher at National Institute of Technology, Tiruchirappalli
Publications - 62
Citations - 565
D. Sriram Kumar is an academic researcher from National Institute of Technology, Tiruchirappalli. The author has contributed to research in topics: Patch antenna & Antenna (radio). The author has an hindex of 11, co-authored 51 publications receiving 464 citations.
Papers
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Graphene nanoribbon based terahertz antenna on polyimide substrate
TL;DR: The proposed antenna consisting of graphene nano ribbon as radiating patch and also the ground plane separated by a 20 μm thin polyimide substrate has achieved the broad impedance bandwidth (>5%) in the band of operation.
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BPSK based subcarrier intensity modulated free space optical system in combined strong atmospheric turbulence
TL;DR: In this paper, the performance of a free space optical (FSO) communication system is analyzed by considering heavy atmospheric losses such as scattering, absorption, channel fading and misalignment fading.
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Analysis of PolSK based FSO system using wavelength and time diversity over strong atmospheric turbulence with pointing errors
TL;DR: This paper derived the closed form expressions for estimation of the average bit error rate (BER) and outage probability, which are vital system performance metrics, and results are shown considering different practical cases.
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MIMO free-space optical communication employing coherent BPOLSK modulation in atmospheric optical turbulence channel with pointing errors
K. Prabu,D. Sriram Kumar +1 more
TL;DR: In this paper, the bit error rate (BER) performance of a multiple-input multiple-output (MIMO) FSO system employing coherent binary polarization shift keying (BPOLSK) in gamma-gamma (G-G) channel with pointing errors was analyzed.
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BER analysis of BPSK-SIM-based SISO and MIMO FSO systems in strong turbulence with pointing errors
TL;DR: This paper analyzes the bit error rate (BER) and outage performance of single-input single-output (SISO) and multiple-input multiple- output (MIMO) FSO systems in strong atmospheric turbulence using binary phase shift keying subcarrier intensity modulation (BPSK-SIM) signaling technique.