Microcontroller-based High-way Tunnel Electrical Controlling System

High-way tunnels play an important role in our life. It’s used to solve a lot of problems such as reducing the crowds in the traffic and shortening the way from place to another. High-way tunnels have many forms like long tunnels, short tunnels and mountain tunnels. In Yemen, there are several high-way tunnels. These high-way tunnels have many problems such as repeated electricity cut off and collected water from the tunnels which result to stop vehicles to enter this tunnel. This paper suggests and implements a solution using Arduino Microcontroller to control all the electrical equipment of a highway tunnel to overcome all previous problems

An Outage Probability in Cooperative MIMO Under Slow Fading Channel

Slow fading channel one of the most important channels which appears widely in cellular mobile system. Although, it has several problems such as bad effects of fading which cause an attenuation to the signal. This paper presents a new scheme in cooperative communication system under slow fading channel to enhance and increase the quality of communication systems performance. This new scheme is called a cooperative multiple input–multiple output Antenna. The main idea of this scheme depends on transmitting multi copy of message via tow paths. Its' performance has compared with MIMO technique in term of outage probability. Thus, the negative effects of fading are mitigated and the outage probability is enhanced. Furthermore, the reliability in communication system under slow fading channel has improved