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An AC Wireless Remote Control System
منظومة سيطرة لاسلكية باستخدام التيار المتناوب

Author: Sabbar Insaif Jasim
Journal: Tikrit Journal of Engineering Sciences مجلة تكريت للعلوم الهندسية ISSN: 1813162X 23127589 Year: 2012 Volume: 19 Issue: 3 Pages: 79-96
Publisher: Tikrit University جامعة تكريت

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Abstract

The aim of this research is to design a multi-job control system for controlling on different job on home or office by using a simple scientific technique. Making more holes on walls of home to connect a wire or control cable for any job does not desired.The research is aiming to design a wireless control system. This control system can send any command to any device in the home or office without making any more holes in walls.This research depends on using the 220 VAC 50 Hz wires, which had been provided in home or office. The frequencies used to control the devices will be carried by the 50 Hz current used in home. These frequencies have been chosen between 30-110 kHz, and we can use (8) channels in this band to prevent interference of commands. The wireless control on the devices will be done by using a PC computer and simple BASIC program. ON-OFF command can be sent by the operator to any device by a transmitter built and interface with that compute.


Article
OLD TAHOE AND TAHOE CONGESTION CONTROL ALGORITHMS FOR TCP

Author: SABBAR INSAIF JASIM
Journal: Al-Qadisiyah Journal for Engineering Sciences مجلة القادسية للعلوم الهندسية ISSN: 19984456 Year: 2018 Volume: 11 Issue: 1 Pages: 80-91
Publisher: Al-Qadisiyah University جامعة القادسية

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Abstract

One of the imperative elements of TCP is the congestion control of the system which happen when numerous info streams touch base at a router whose yield limit is not as much as the whole of the data sources. This paper introduced how Old Tahoe (Congestion Avoidance) could and Tahoe (Fast Retransmit) affect the congestion control. The system was simulated using Network Simulation Program (NetSim) to study the performance of system in terms of delay and utilization for Old Tahoe (Congestion Avoidance) and Tahoe when the congestion occurred and when there is no congestion and no error and the results showed that fast retransmit was better utilization and low delay than congestion avoidance.

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