Dedicated protection scheme for optical networks survivability

In recent days, optical fibers have been developed as a transmission medium to carry traffic in order to provide various services in telecommunications platform. Failure of this fibre caused loss of data which can interrupt communication services. Thus, this paper will focus about protection scheme in order to guarantee the survivability of the networks. Besides, the scheme should provide better quality of services (QOS) in terms of network resource usage, connection availability satisfaction ratio (ASR) and blocking probability. A sample of mesh torus network was carried out to compare several basic connection management processes and dedicated protection scheme was taken into consideration. Matlab was used as a simulation platform in this project. Analyze for performance metrics will shown that there are significant improvements of availability satisfaction Ratio (ASR) when dedicated path protection is utilized in optical network. This project provides an insight of advanced in protection scheme and can serve as a foundation for future research

Centralized heart rate monitoring telemetry system using zigbee wireless sensor network

Recent advances in wireless communication standards and medical monitoring system have made it possible to effectively combine mesh networking with Non-Invasive medical application which is Pulse Oximeter in order to create reliable, large-scale wireless Network. This Mesh networking will enable doctors and nurses to observe and monitor a number of patients simultaneously from one location without being with the patient's physically. This project is mainly concerned about monitoring patient's condition simultaneously via Wireless Mesh Network. Wireless Mesh Network is a network that allows data transmitted to the node's nearest neighbors and it can be easily maintained as each node are self configuring and self healing. Data obtained from multiple pulse oximeters will be stored and processed using Arduino-Nano, then transmitted to a centralized unit, where the information for multiple oximeter will be displayed simultaneously. The efficiency of data transmission was monitored and verified. Mesh networking for pulse oximeter had been successfully design to show the active pulse oximeter. Besides, the data transmit and received by the XBee were accurate and it had been proved through several observations

Photonics alcohol detector system for Syari'Ah compliance food and beverages

In food production, sugars (a type of carbohydrate) are widely used to make the food or beverages taste sweet and delicious. Both natural and manufactured beverages may contain a small amount of alcohol (specifically ethanol) as sugar based food is fermentable into alcohol. Therefore, Muslim consumers must be aware that the allowable percentage of alcohol to exist in the food as mentioned by the Shari'ah is only 0.01%. The main inspiration of this work is to develop a low cost yet reliable alcohol percentage detector for non-alcoholics beverages. The optical properties of beverages that respond to the infrared radiation in the optical wavelengths and frequencies range are thoroughly studied. In the proposed model, percentage of ethanol in the beverages is directly determined by using the first derivative of near-infrared (NIR) absorbance spectrum where the range of wavelength used is from 1680 nm to 1700 nm. By making suitable assumptions of the NIR technique, the alcohol detector system was designed, modeled and simulated by using Microsoft Excel and Microsoft Visual Basic. The model of the alcohol detector system was found to be practical for prototype development and hence the product would help the Muslim consumers to indentify whether the beverages they consumed Halal or not

Last Mile Mobile Hybrid Optical Wireless Access Network Routing Enhancement

This study focuses on mobile ad hoc networks (MANETs) that support Internet routing protocol imposing stringent resource consumption constraints of Quality of service (QoS). The mobile Internet causes the on-going issue of inefficient use of the MANET resources due to its random nature of wireless environments. In this paper, the new improved architecture of the last mile mobile hybrid optical-wireless access network (adLMMHOWAN) is proposed and designed to tackle the arised issues. The proposed design is based on a unified wireless-wired network solution required the deployment of MANET-based wireless fidelity (WiFi) technology at the wireless front-end and wavelengths division multiplexing passive optical network (WDM PON) at the optical backhaul. The critical performance metrics such as network capacity and energy consumption based on modified AODVUU routing protocol using OMNeT++ software is analyzed with 2 scenarios, namely the number of nodes and mobility speed. This mode of communication results in better QoS network capacity of 47.07% improvement, with 26.85% reduction of lower energy resource consumption for mobile wireless front-end over passive optical network backhaul architecture when compared with the existing work of oRiq scheme that focus on improvement in MANETs