[PDF] Top 20 Analysis of the effect of BER and Q-factor on free space optical communication system using diverse wavelength technique

... The photon of the beam bouncing with haze particles in the mid-air caused a condition called as the absorption. It caused the link margin, distance and the availability of the link to reduce greatly [1]. Scattering is ... See full document

... decades Free Space Optical (FSO) communication is preferred over the radio frequency communication and microwave systems because of its license-free long-range ...deployment. ... See full document

... FSO system has been proved to be more effective in augmenting data ...WDM Free Space Optics has been ...minimum BER, maximum Q factor and Eye ... See full document

... of optical networks with the flexibility and mobility of wireless ...Modulation technique is one of the most significant processes in RoF system where the RF electrical signal is applied to modulate ... See full document

... the effect of atmospheric attenuation during severe hazy days for Free Space Optical ...of Free Space Optical Communications is still rare in Malaysia due to environment ... See full document

... decades, free-space optical communication (FSOC) has become more and more interesting as an adjacent and/or alternative to radio frequency (RF) and optical fiber ...The optical ... See full document

... the communication system. FSO is the free space optical communication system where that transmit the data in the form of optical ...maximum BER of a FSO ... See full document

... the system by increasing the 32 channels of wavelength division multiplex ...multi-output technique (MIMO) which take benefits from the spatial ...high-quality communication, multiple channels ... See full document

... purposed system have also been investigated by different modulation formats at the optical transmitter such as RZ, NRZ, CSRZ and DRZ with changes the physical parameter such as beam divergence angle, ... See full document

... the BER using different algorithms such as Gaussian and Chi-Squared and derive different metrics from the eye diagram, such as Q Factor, eye opening, eye closure, extinction ratio, eye height, ... See full document

... of free space optics over Radio Frequency (RF) is that no Federal Communications Commission (FCC) licensing or single frequency allocating is ...in wavelength) are ...holders. Free ... See full document

... physical system under study. Fig. 1(a). shows the block diagram of OOK system and ...FSO communication systems, the designers have to overcome some of the major challenges related to the ... See full document

... matter exactly where the constellation points are positioned, and most of the times they are represented on the real axis, at 0° and 180°. This modulation is the most robust of all the PSKs since it takes the highest ... See full document

... coherent wavelength light source [11, ...that optical beat interference (OBI) is the dominant noise in SAC-OCDMA with multi- wavelength laser ...the system performance with regards to ... See full document

... FSO system basic design was modeled and simulated for performance characterization by using OptiSystem ...of optical link in the transmission layer of a broad spectrum of optical networks from ... See full document

... The underwater transmitter consists of all the electronics packaged within the submersible transmitter enclosure. The transmitter performs three main functions: it acts as an interface to the sensor node, performs error ... See full document

... This paper reviewed the atmospheric channel through which the transmitted optical signal propagates. Impairments such as obstacles along the propagation path, absorption, scattering and atmospheric turbulence were ... See full document

... However, because of the awareness of ozone layer depleting effects of chlorine, people slowly moved on to another alternative which is the hydrofluorocarbon (HFC) and hydrochlorofluorocarbon (HCFC) refrigerants. HCFC and ... See full document

... each using a unique code sequence. The optical signal from each laser has an average optical power level (Pavg) and a modulated amplitude (Poma) ...high-speed optical modulation, the fastest ... See full document

... The effect of dispersion due to atmospheric pressure and temperature on a terrestrial free-space optical communi- cation system is semi-analytically ...dispersion effect due to ... See full document