Performance of a subcarrier intensity modulated differential phase-shift keying over generalized turbulence channel

Vellakudiyan, Jagadeesh; Muthuchidambaranathan, P.; Bui, Francis M.; Palliyembil, Vineeth

doi:10.1016/j.aeue.2015.06.015

Cited by 16 publications

(4 citation statements)

References 24 publications

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“…This can be done by providing RF access to users and multiplex these RF signals using a relay and carry the resulting signal in the optical form over the FSO link to feed to the fibre backbone. In this proposed system, the RF link and FSO link follow Rayleigh fading and Málaga (

M

)‐distribution fading [36–40], respectively. The

M

‐distribution is a generalised statistical distribution to model the irradiance fluctuation of an unbounded optical wave‐front (plane or spherical waves) propagating through a turbulent medium under all irradiance conditions in homogeneous, isotropic turbulence [37].…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of the decode‐and‐forward relay‐based RF‐FSO communication system in the presence of pointing errors

Vellakudiyan

Palliyembil

Ansari

et al. 2019

IET signal process.

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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.

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M

)‐distribution fading [36–40], respectively. The

M

Section: Introductionmentioning

confidence: 99%

Performance analysis of the decode‐and‐forward relay‐based RF‐FSO communication system in the presence of pointing errors

Vellakudiyan

Palliyembil

Ansari

et al. 2019

IET signal process.

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“…The OWC system emerged to overcome the limitations imposed by the nature of radio‐frequency propagation in the wireless communication systems. Other advantages of OWC systems include [3–12]: The OWC systems operate in the unlicensed optical spectrum. The bandwidth of OWC system is continuously improving as a result of the frequent progress of light sources manufacturing technology. In fact, the LEDs and LDs are currently capable of providing several gaga bits per second of transmission rate. OWC systems often use low‐cost, inexpensive, small size, low power consumption, and low heat radiation optical components compared to traditional wireless communication systems. Immune to radio‐frequency interference occurring from as a result of electromagnetic radiations. OWC systems are known for being secured systems due to the direct sequence spread spectrum technique that can be utilised.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of OCDMA wireless communication system based on double length modified prime code for security improvement

Morsy

Alsayyar

2020

IET Communications

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“…The OFDM is used as a digital multi-carrier modulation as in Refs. 13–25. The OFDM signal is I/Q encoded by the orthogonal DLMPC, which was introduced in Refs.…”

Section: Proposed System Architecture and Modelingmentioning

confidence: 99%

Multi-users different rates visible light communication system for sixth-generation multimedia applications

Alsayyari

2023

Opt. Eng.

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.The two most significant issues that communication engineers have been confronting since the development of fifth-generation wireless networks are bandwidth increase and energy-saving techniques in data transmission. We present an innovative solution for utilizing a multi-user different-rates visible light communication (VLC) system for sixth-generation applications. Such a solution takes advantage of orthogonal frequency division multiple access (OFDMA) with orthogonal codes as multiple access communication networks. For the achievement of energy-saving and wide beam width of the optical source, the light emitting diode is often used as a transmitter. Furthermore, one of the most popular orthogonal codes in use is the double length modified prime code, which has been utilized for enhancing communication network security and network capacity. Most importantly, the performance of the network is evaluated versus the number of users, taking into consideration the amount of noise resulting from the multiple access interference, shot noise, and thermal noise. The error vector magnitude has also been considered for performance analysis and results. Significantly, the obtained results show the possibility of accommodating 110 users at an error rate of no more than 10 − 9 and a data rate per user of 50 Gbps.

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Performance of a subcarrier intensity modulated differential phase-shift keying over generalized turbulence channel

Cited by 16 publications

References 24 publications

Performance analysis of the decode‐and‐forward relay‐based RF‐FSO communication system in the presence of pointing errors

Performance analysis of the decode‐and‐forward relay‐based RF‐FSO communication system in the presence of pointing errors

Performance analysis of OCDMA wireless communication system based on double length modified prime code for security improvement

Multi-users different rates visible light communication system for sixth-generation multimedia applications

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