<p class="Abstract">For military divers, having a robust, secure, and undetectable wireless communication system available is fundamental element. Wireless intercoms using acoustic waves are currently used. These systems, even if reliable, have the defect of being easily identifiable detectable. Visible light can pass through sea water. Therefore, be used to develop short-range systems. T...

Introduction The Great East Japan Earthquake on 11th March 2011 seriously damaged telecommunication networks, which were indispensable to share and collect information for disaster recovery activities. Telecom operators in Japan used various types of transmission media, including communication satellites, to resume services quickly [1]. Radio-wave communications can have agile deployment capabi...

Optical nanoantennas tailor the transmission and reception of optical signals. Owing to their capacity to control the direction and angular distribution of optical radiation over a broad spectral range, nanoantennas are promising components for optical communication in nanocircuits. Here we measure wireless optical power transfer between plasmonic nanoantennas in the far-field and demonstrate c...

Wire line infrastructures can be considerably more expensive and time consuming to deploy than a wireless one. In addition, rural areas and developing countries frequently lack optical fiber or copper-wire infrastructures for broadband services and providers are unwilling to install the necessary equipment for regions with little profit potential. Wireless approaches could address this problem....

Underwater wireless technologies demand to transmit at higher data rate for ocean exploration. Currently, large coverage is achieved by acoustic sensor networks with low data rate, high cost, high latency, high power consumption, and negative impact on marine mammals. Meanwhile, optical communication for underwater networks has the advantage of the higher data rate albeit for limited communicat...

The increased interest in long lasting wireless sensor networks motivates to use Free Space Optics (FSO) link along with radio frequency (RF) link for communication. Earlier results show that RF/FSO wireless sensor networks have life time twice as long as RF only wireless sensor networks. However, for terrestrial applications, the effect of weather conditions such as fog, rain or snow on optica...

The optical ZCZ code, which is a set of pairs of binary and bi-phase sequences with zero correlation zone, can provide optical code division multiple access (CDMA) communication system without co-channel interference. We proposed the compact construction of a code generator and a bank of matched filters for this code. This paper gives and evaluates an optical ZCZ-CDMA wireless communication sys...