A5060527763- Optical Wireless Communication Technologies
- Optical Network Technologies
- Advanced Photonic Communication Systems
- Satellite Communication Systems
- Semiconductor Lasers and Optical Devices
- Orbital Angular Momentum in Optics
- graph theory and CDMA systems
- Underwater Vehicles and Communication Systems
- Radio Wave Propagation Studies
- Advanced Optical Network Technologies
- Advanced Wireless Communication Technologies
- UAV Applications and Optimization
- Advanced Fiber Optic Sensors
- Coding theory and cryptography
- Photonic and Optical Devices
- Advanced optical system design
- solar cell performance optimization
- Adaptive optics and wavefront sensing
- Image Enhancement Techniques
- Advanced Wireless Communication Techniques
- Smart Grid Energy Management
- Wireless Communication Networks Research
- Energy Harvesting in Wireless Networks
- Water Quality Monitoring Technologies
- Photonic Crystal and Fiber Optics
Chandigarh University
2022-2024
Guru Nanak Dev University
2013-2023
Institute of Engineering
2022
Mansoura University
2022
Arab Academy for Science, Technology, and Maritime Transport
2022
Auckland University of Technology
2022
Maharshi Dayanand University
2022
Minnesota State Community and Technical College
2022
Indian Institute of Technology Guwahati
2022
Indian Institute of Management Amritsar
2021
This paper explores the data carrying capacity enhancement in free space optics (FSO) transmission systems by employing orbital angular momentum (OAM) multiplexing technique. Specifically, simulative investigation of OAM-FSO terrestrial is carried out under varying weather conditions. A net 40 Gb/s over medium demonstrated using four distinct OAM beams (LG0,0, LG0,13, LG0,40, and LG0,80). The performance compared for alternate mark inversion (AMI), return-to-zero (RZ), non-return-to-zero...
The sensor nodes in wireless networks (WSNs). inherit low processing, shorter range and power features with the miniature size to offer transmission. Therefore, order fulfil long-time data sensing need, several Quality of Service (QoS) parameters such as: lesser delay, higher throughput packet delivery ratio (PDR) minimum overhead must be improved. In recent years extensive research efforts have been made ameliorate these achieve optimum QoS. However, rate adaptation congestion control WSNs...
A novel free space optics (FSO) system is introduced in this article by combining orthogonal frequency division multiplexing (OFDM) with spectral amplitude coding optical code multiple access (SAC-OCDMA) to be implemented 5G technology and smart cities. Enhanced double-weight (EDW) codes are used as signature codes, while for the detection technique, single photodiode (SPD) applied SAC-OCDMA system. OFDM a four-quadrature modulation (4-QAM) scheme assigned three users system, each carrying...
Abstract This paper investigates and enhances unmanned aerial vehicle (UAV) relay-assisted free-space optics (FSO) optical wireless communication (OWC) systems under the effects of pointing errors (PEs) atmospheric turbulences (ATs). The incorporation UAVs as buffer-aided moving relays in conventional FSO (CFSO) is proposed for enhancing performance PEs through AT. Using M-PSK (phase shift keying) M-QAM (quadrature amplitude modulation), impact on transmission quality evaluated this work. We...
This work reports the development of an ultra-high capacity Nyquist-wavelength division multiplexing (WDM) superchannel based free space optics (FSO) transmission link. In proposed link, 32 independent wavelength channels are multiplexed, each carrying 200 Gbps dual polarization-quadrature phase shift keying (DP-QPSK) data with 60 GHz channel spacing yield net rate 6.4 Tbps spectral efficiency 3.33 bits/s/Hz. The performance FSO link has been numerically investigated under influence dynamic...
This paper introduces a novel free space optics (FSO) communication system for future-generation high-speed networks. The proposed integrates orbital angular momentum (OAM) modes with an optical code division multiple access (OCDMA) technique. Two OAM beams are used (LG0,0 and LG0,10), each of which is transmitting three independent channels. Each channel assigned by fixed right shift (FRS) codes carries 10 Gbps information data. performance the model evaluated under different foggy dust...
Abstract This paper introduces a novel underwater (UW) optical communication system that utilizes code division multiple access transmission technique using the permutation vector code. Three scenarios of water are considered, pure sea (PS), clear ocean (CL), and coastal (CO). The performance is evaluated analytically in terms bit error rate (BER), received power, signal to noise ratio for different UW links data rates. results show shortest range achieved case CO, achieving highest...
The need for a high-speed transmission network has become essential due to the exponential increase in traffic. In this paper, free-space-optics (FSO) link modelled by integrating two multiplexing techniques, i.e., spectral amplitude coding-optical code division multiple access (SAC-OCDMA) using zero cross correlation (ZCC) codes and polarization (PDM), is proposed. On X-polarization (XPolar) state, three users with different ZCC are transmitted. addition, another same transmitted on...