Design and study of high bit-rate free-space optical communication system employing QPSK modulation

Patnaik, Bijayananda; Sahu, P. K.

doi:10.1504/ijsise.2013.051501

Cited by 17 publications

(9 citation statements)

References 17 publications

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“…Therefore, the BPSK modulation schemes is better for FSO. Taking the atmospheric fluctuation into consideration, the simulation results as shown in Figure 3 [14].…”

Section: Simulation and Resultsmentioning

confidence: 99%

Performance Analysis of Different Modulation Techniques for Free-Space Optical Communication System

Zhang

Xiao

et al. 2015

TELKOMNIKA

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“…Therefore, the BPSK modulation schemes is better for FSO. Taking the atmospheric fluctuation into consideration, the simulation results as shown in Figure 3 [14].…”

Section: Simulation and Resultsmentioning

confidence: 99%

Performance Analysis of Different Modulation Techniques for Free-Space Optical Communication System

Zhang

Xiao

et al. 2015

TELKOMNIKA

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“…There are also recent literature on joint optimization of simultaneous transmissions on RF and FSO channels. To obtain high bit rates and spectral efficiency, many FSO communication systems [4] use sophisticated modulation schemes such as Phase-Shift Keying (PSK) or Quadrature Phase-Shift Keying (QPSK) [5] [6] or Quadrature Amplitude Modulation (QAM) [7] [8] or Pulse Position Modulation (PPM) [9] [10] [11]. However, these modulation schemes pay high costs in power consumption, complexity, and additional sensitivity to phase distortions of the received beam [12].…”

Section: Related Workmentioning

confidence: 99%

On Achievable Rate Region Using Location Assisted Coding (LAC) for FSO Communication

Nguyen¹,

Nguyen-Huu

Nguyen

2017

2017 IEEE 86th Vehicular Technology Conference (VTC-Fall)

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The recent increase in number of wireless devices has been driven by the growing markets of smart homes and the Internet of Things (IoT). As a result, expanding and/or efficient utilization of the radio frequency (RF) spectrum is critical to accommodate such an increase in wireless bandwidth. Alternatively, recent free-space optical (FSO) communication technologies have demonstrated the feasibility of building WiFO, a high capacity indoor wireless network using the femtocell architecture. Since FSO transmission does not interfere with the RF signals, such a system can be integrated with the current WiFi systems to provide orders of magnitude improvement in bandwidth. A novel component of WiFO is its ability to jointly encode bits from different flows for optimal transmissions. In this paper, we introduce the WiFO architecture and a novel cooperative transmission framework using location assisted coding (LAC) technique to increase the overall wireless capacity. Specifically, achievable rate regions for WiFO using LAC will be characterized. Both numerical and theoretical analyses are given to validate the proposed coding schemes.

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“…The transmitter is a Coherent QPSK transmitter which generates the QPSK signal by using two Mach Zehnder modulators to encode QPSK symbols onto an optical carrier [12]. Each modulator modulates the in-phase (I) and Quadrature component (Q) of a carrier [11].…”

Section: Transmittermentioning

confidence: 99%

“…In past, vast researches have been done and reported in which Inter Satellite Optical Wireless Communication Systems have been modelled [7] and the work includes various parameters that needs to be taken care of while designing optical wireless communication systems [8] such as effects of vibration [8] transmitted power [9], size of aperture of telescope [10]. Very high bit rate for OWC link have been achieved by B. Patnaik et al in [11] and A Penchala Bindushree in [12] by selecting Quadrature Phase shift Keying (QPSK) as an optimum modulation scheme and maximum achievable distance is reported up to approximately 40,000 km at 5.6 Gbps and 5,000 km at 438 Gbps.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of 1 TBPS QPSK DWDM System Over Isowc

Singh¹

2015

IJRET

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Optical wireless communications has been in latest trends of high speed communications. They enable the use of optical wireless channel in applications like inter satellite links and underwater communications etc. In this paper, we communicate an ultra high bit rate i.e. 1 Tbps (10 x 100 Gbps) QPSK WDM System over optical Wireless communication Link. The system is a Line of Sight optical wireless link incorporating Coherent QPSK modulation Scheme for10 channels each at 100 Gbps The performance is evaluated in terms of Q-Factor and Minimum Bit Error Rate which are noticed to be in acceptable standards. The Link is analyzed under various parameters such as Power, Distance etc and maximum achievable distance is noticed to be 50,000 km at power values ranging from 0 dBm to 40 dBm.

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Design and study of high bit-rate free-space optical communication system employing QPSK modulation

Cited by 17 publications

References 17 publications

Performance Analysis of Different Modulation Techniques for Free-Space Optical Communication System

Performance Analysis of Different Modulation Techniques for Free-Space Optical Communication System

On Achievable Rate Region Using Location Assisted Coding (LAC) for FSO Communication

Performance Evaluation of 1 TBPS QPSK DWDM System Over Isowc

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