Navid Bani Hassan

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Underwater wireless optical communications is an emerging solution to the expanding demand for broadband links in oceans and seas. In this article, a cellular underwater wireless optical code division multiple-access (UW-OCDMA) network based on optical orthogonal codes (OOC) to provide broadband links among many users is described. Fundamental key aspects(More)
Atmospheric turbulence has made a significant contribution in free-space optical (FSO) communications' areas of research. Assuming slowly varying channel, a feedback can be implemented to overcome the problem of fading. In comparison with all former published works, in this paper, we apply an algorithm to reduce average power consumption by regulating(More)
In this paper a comparison between a spiral and a strip shaped LED is presented in terms of the maximum link distance achievable in visible light based car to car communications (VLC-C2C). The transmitted data is recovered from the frame brightness of the video signal. The intensity modulated LED is captured from two scenarios, using a focused and unfocused(More)
In this paper, we propose a novel method of multi-band carrier-less amplitude and phase (m-CAP) modulation for optical wireless communication (OWC) systems. In conventional m-CAP systems, the total signal bandwidth is divided into m equally distributed subcarriers. In this work, for the first time, we set the subcarrier bandwidths such that the first(More)
In this paper we assess the effects of nonlinear optical subsystem and linear time variant RF channel of Radio-over-Fiber (RoF) in Wideband Code Division Multiple Access (WCDMA) on the system bit error rate (BER) performance by computer simulations. These effects are compensated by pilot aided estimation and equalization approach at different Output(More)
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