PUBLICATIONS I have so far published the following papers. They were prepared and published in the course of my studies as well as my present career. § "Analysis of the Effects of Combining More Frequency Groups in an Omni / Sectored Mobile Base Stations", 1999 International Wireless and Telecommunications Symposium / Exhibition (IWTS), 17-21 May 1999, Shah Alam, Selangor. Abstract § "Software Development for Multi-Mode Satellite Tracking System", National Conference on Telecommunication Technology (NCTT) 2000, 20-21 November 2000, Johor Bahru, Johor. Abstract § "Space Radar Target Identification", 2nd World Engineering Congress (WEC), 22-25 July 2002, Kuching, Sarawak. Abstract § "Space based Communications in Developing Nations", ASEAN Australian Engineering Congress, 26-28 May 2004, Kota Kinabalu, Sabah. Abstract Analysis of the Effects of Combining More Frequency Groups in an Omni / Sectored Mobile Base Stations Geetha Remy Vincent, Dr. Sathish Chandran, Nor Kamariah Nordin Planning for the highest performance in a Digital Advanced Mobile Phone Systems (D-AMPS) network will demand greater attention to the signal and interference levels. Proper frequency planning is required for all cellular telephone system because the amount of RF spectrum allocated for cellular system use is limited. To better allocate the RF spectrum, frequency must be reused at regular distance intervals throughout the system to increase capacity. This is an important engineering task that requires a good compromise between capacity and performance. The mechanism that governs this process is called frequency planning. However, with the advent of subscriber growth, the existing frequency plans do not provide adequate service due to limitations such as co-channel interference and capacity. Therefore, a mechanism is needed to enhance cellular performance and capacity. In this project, a different type of channel assignment technique using the dividing and exchanging technique is implemented as a suggestion to reduce co-channel interference. The coverage obtained from the simulation using this new technique is compared with frequency plan using the conventional channel assignment technique. In this project, I compared two types of channel assignment techniques, the conventional and the Division and Addition (DA) method. The aspects of C/I performance and the system capacity was taken into consideration, keeping in mind that the C/I and C/A can only be minimized and not solved completely. The Division and Addition (DA) technique has been clearly proven that it improves the coverage of a frequency plan that uses the conventional technique. By adjusting the frequency channels allocated, the C/I and C/A interference can be minimized. As a conclusion, the DA method can be used to reduce interference. I also concluded that a compromise between channel capacity and C/I is critical in frequency planning. Frequency planning is an important engineering task in cellular communication systems. It not only determines the system performance and capacity but also governs the overall system growth and revenue. Back to Top Software Development for Multi-Mode Satellite Tracking System Geetha Remy Vincent, Ashraf Gasim Elsid Abdalla, Borhanuddin Mohd Ali, Nor Kamariah Nordin The paper deals the development of a software tool for multi-mode satellite tracking system. The software package has been developed with a user friendly graphical user interface (GUI). The user can choose the satellite, observer location and time of interest to track a satellite. The program reads NORAD two-line element (TLE) sets and uses them to calculate the corresponding satellite position. The program displays the predicted coordinates and related information both graphically and in text format. The maps can be updated in real-time, simulated or manually set time to show the satellite position at any time past or future. In addition, the link quality of the tracked satellite is highlighted. Back to Top Space Radar Target Identification Geetha Remy Vincent, Ashraf Gasim Elsid Abdalla, Borhanuddin Mohd Ali, Nor Kamariah Nordin Space activities in the Earth’s orbits are increasingly indispensable to our civilization. With the increasing amount of satellites and orbital debris in the low earth orbit (LEO), there is a non-zero probability of operational satellites colliding with orbital debris. In order to achieve the accuracy in space object identification, it is necessary to investigate the various target identification methods, which will be able to accurately identify space objects in space where the probability of wrongly identifying space objects in a vast area is high. In line of this need, this paper proposes a new algorithm for space radar target identification in the LEO based on the idea of compliance with future orbital debris related control measures in the LEO. Back to Top Space based Communications in Developing Nations Geetha Remy Vincent Space based communications systems is an essential component of the information age, enabling global collection, distribution and use of data and information, where it has proven its potential to promote global cooperation and healthy competition. Unfortunately, most developing nations lack this kind of dense network of communications that exist in the developed world. The key issue for a developing nation would be the recognition and understanding of the proper role that the space based communications systems can play in their economic and social development. This paper discusses the significance of the contribution of space based communications systems. In addition, it reviews the challenges faced by developing nations in establishing space policies and programs. The paper concludes with some recommendations to address the challenges faced by the developing nations. Back to Top If you are interested to read the full paper, I will be glad to provide it to you. Kindly drop me a line at grv15@yahoo.com

HOME PUBLICATIONS Get an insight of my publications. FAVOURITES What are my favourites? Come and find out. LINKS Get connected to many of the links in my collection… MEMBERSHIP I am a member of these professional bodies… IEM BEM ABOUT ME Busy working mum, striving to bring out the best in me, my family and those around me… Email me : grv15@yahoo.com July 28, 2005