Passive Optical Network (PON)
Title: An Analysis of Optical Layer LAN Simulation in a Multifunctional Repeater Based Optical Access Network
Synopsis:
Customers within a PON environment may require private communication links to one another for various computer applications and telecommunication services. Deploying a separate network for internetworking among the customers is extremely complex. However the reuse of the PON infrastructure to facilitate intercommunication links between customers of the same PON can greatly reduced the cost and management issue. In this project, the student has to study, investigate and analyze methods or techniques that have been proposed by several researches to overlay a LAN on the existing PON. This overlaid network can be used to interconnect several customers in scattered buildings to form a community.
No of student: 1 (System modeling and simulation using OPTSIM)
Title: An Analysis of Video Broadcasting Over WDM-PON
Synopsis:
WDM-PON is an attractive solution for broadband access as it is well known for the large capacity, easy management and network security. In point to point transmission link, usually a wave grating router (WGR) is used for virtual point to point transmission. However, it is not suitable for broadcasting as it is wavelength dependent. Several techniques have been proposed and investigated in order to overcome this problem such as slicing broadcast signals and utilizing broadband source. In this project the student is required to study, investigate and analyze methods or techniques that have been proposed by researchers to broadcast video over WDM-PON..
No of student: 1 (System modeling and simulation using OPTSIM)
Title: An Analysis of Radio over Fiber Techniques
Synopsis:
The demand for broadband services for wire bound and wireless devices is rapidly growing. The growth is fueled by so many kind of services such as broadband internet, fast peer to peer file transfer, HDTV and etc. High capacity (GBit/s) wire bound is needed to feed fixed terminals. In addition of that, a large wireless capacity is also required. Typically, the wired and wireless services are being delivered by several dedicated networks (CAT5, WLAN, copper twisted pair and coaxial cables, etc.). However, optical fiber can provide a solution to converge those network in a single in-building infrastructure that can host all those services together. In this project the student
is required to study, investigate and analyze the methods and techniques for radio over fiber transmission that have been proposed by several researchers.
No of student: 1 (System modeling and simulation using OPTSIM)
Title: An Analysis of Performance of OFDM in PON
Synopsis:
Due to high spectral efficiency and resilience to linear dispersion, OFDM has emerged as an attractive candidate for future optical transmission system. In of the research, it has been shown that the OFDM system can support heterogeneous services with dynamic bandwidth allocation transparently, by adaptively assigning OFDM subcarriers to different services in different time slots. In this project the student is required to study, investigate and analyze the methods and techniques that have been used or proposed by researches to impelement OFDM transmission system over PON.
No of student: 1 (System modeling and simulation using OPTSIM)
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Mobile Communication (UMTS, 3G, WCDMA)
Synopsis:
Before admitting new mobile, call admission control (CAC) needs to check that the admittance will not sacrifice the planned coverage area or the quality of service of the existing connections. CAC will accept or block a request to establish a connection (radio access bearer) in the radio access network (RAN). It will also estimate the load increase that the new connection will cause to the RAN.
Title: Modeling an Uplink Call Admission Control Based on Power
In uplink CAC based on power, the power received by Node B will be main decision criterion, relative the noise level.
No of student: 1 (System modeling - programming)
Title: Modeling an Uplink Call Admission Control Based on Throughput
In uplink CAC based on throughput, the load caused by the new connection to the RAN is the decision criterion.
No of student: 1 (System modeling - programming)
In those two topics, each student is required to model a call admission control scheme and algorithm using MATLAB and Opnet (network simulation software). In order to model the CAC scheme, the student must first study and understand the main components of mobile communication system especially those related to call admission control. The students will also have the opportunity to explore several interesting topics in mobile cellular communications such as radio network planning and radio resource management especially for 3G system.
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The Development of Pulse Oximetry System (SPO2)
Synopsis:
Pulse oximetry is a simple non-invasive method of monitoring the percentage of haemoglobin (Hb) which is saturated with oxygen. The to be developed pulse oximeter consists of a probe attached to the patient's finger (or earlobe), which is linked to a PIC or microcontroller system. The PIC will be connected to a main processor unit (MPU) via a communication link (Bluetooth or USB).
This MPU will send the information (the percentage of Hb saturated with oxygen and the number of pulse beats) to a mobile device (mobile phone or personal computer).
The mobile device will log and display the information.
In general, the scope of work will be divided into two titles:
Title: The Development of Pulse Oximetry Transducer and its Interface System to the MPU
No of student: 1 (Hardware and software development)
Title: The Development of MPU and its GUI Software in Mobile Device
No of student: 1 (Hardware and software development)
In this project the student will have the opportunity to explore the system design which involves interesting hardware and software development. The students will be exposed to PIC-based system design and development which will also includes signal conditioning circuits design and several communication links configurations.
