Telecommunications Network using Electromagnetic Waves

Cloaking using complementary media for electromagnetic waves

Negative index materials are artificial structures whose refractive index has negative value over some frequency range. The study of these materials has attracted a lot of attention in the scientific community not only because of their many potential interesting applications but also because of challenges in understanding their intriguing properties due to the signchanging coefficients in equat...

Underwater wireless sensor network communication using electromagnetic waves at resonance frequency 2.4 GHz

A comprehensive study of electromagnetic waves underwater propagation for a wireless sensor network is introduced in this paper. A mathematical model for the path loss due to attenuation of electromagnetic waves propagates in sea and pure water is given. Reflection from the air-water and water-sand interfaces as a function of distance between sensors and water depth is also introduced. A high g...

Diffraction of Electromagnetic Waves

The general method to obtain solutions of the Maxwellian equations from scalar representatives is developed and applied to the diffraction of electromagnetic waves. Kirchhoff’s integral is modified to provide explicit expressions for these representatives. The respective integrals are then evaluated using the method of stationary phase in two dimensions. Hitherto unknown formulae for the polari...

Phs 342 : Electromagnetic Waves

Telecommunications and Network Security

The CIA TRIAD The following is how to preserve the CIA triad in the telecommunications and network security domain: Confidentiality – Network Security Protocols – Network authentication services – Data Encryption Services Integrity-Firewall Services-Communications Security Management-IDS's Availability-Fault tolerance for data availability, such as backups and redundant disk systems-Acceptable ...