TAN HOOI NEE

The purpose of my capstone project is to solve one of the issues faced by the residents in a market at Pekan Nanas, Johor. The issue that we chose to solve is the problem of flies in that market, this is because the issue of flies will cause many types of diseases that can be harmful to people, thus is an issue that need to be solved as soon as possible. Our idea of this project is to create an IoT based electric fly trap, named "Fliesbusters". The difference of our device with the ordinary electric bug trap is it can detect the fly and circuit will only "on" when fly is detected. Also, the total amount of flies trapped in one day will be saved in a database. After a certain period of time, for example one week or one month, we can evaluate the effectiveness of that device by analyzing the amount of flies trapped by that device for the whole period. The data will be shown in graph form, so it is easier to analyze the performance of the device. If the data is in negative slope form, means that the device is working and the amount of flies in that area can be reduced. However, additional actions such as cleaning has to be done in order to effectively reduce the amount of flies in that market. The knowledge that we gained from this project include programming skill and solid work skill.

My FYP project focuses on the physical layer performance evaluation of FTTS that has been deployed in Cyberjaya and Putrajaya in 2010. In my project, I do the network upgrade in terms of maximum coverage area and the downstream bit rate can be achieved by the current system through simulation using Optisystem software. The downstream bit rate is related to the bandwidth can be provided from the Internet Service Provider to the users in the system. As one of the government Key Performance Index is to upgrade the bandwidth for the schools in Malaysia to 8-20 Mbps. Since the network system with conventional technologies cannot afford for the high speed, so the new technology which is network system using fiber optic cable is introduced. Fiber optic has tremendous advantages compared to copper wire, so now we are on the way to transform into the new technology. From the variety types of fiber based networks, TM chooses to implement Gigabit Passive Optical Network in Malaysia. In my project, I have done the measurement of GPON testbed that is available in UTM, then I compare the result with theoretical method which is calculation and also with simulation result. I also build the GPON in Optisystem by referring to the topology of the FTTS deployed in Cyberjaya. From my analysis, the maximum fiber cable length can be extended to 38km from the original 10km, while the downstream bit rate can be increased to 2.75Gbps from the original 1.25Gbps. In other words, each school in the FTTS system is estimated to get an average of 15Mbps bandwidth with the upgraded network system.

The system setup in Optisystem for downstream link. The system consists of Optical Line Terminal which is the transmitter, Optical Distribution Hub which is the channel, and Optical Network User which is the receiver. Evaluation of the system performance is at the ONU, the 3R analyzer is used to generate the eye diagram of the system, which contain min. BER, and max. Q factor.

The graph of bit error rate over fiber distance. The straight line indicates the maximum BER can be accepted for an optical communication system. So the accepted fiber length must have BER less than or equal to the limited BER.

Graph of BER over downstream bit rate. Same as graph of BER over fiber distance, the BER of certain bit rate must be less than or equal to the maximum acceptable BER.