CONGESTION CONTROL IN GSM NETWORK A CASE STUDY OF 9MOBILE NIGERIA. A RESEARCH PROJECT MATERIAL ON COMPUTER SCIENCE EDUCATION
Traffic Congestion of GSM has always been a major problem and challenge in Nigeria to the service provider and the subscribers. This work deals greatly with the traffic control congestion and management in mobile wireless communications with the aim of guaranteeing customer’s satisfaction so as to provide very accurate and reliable throughput whenever wireless network is utilized. Also increase reliability and error free data transfer in mobile communication, so as to ensure concurrent access to users without any interference or congestion. The research was developed by exploring the use 9mobile and critically analyzed the call data for a period of busy hour for a week that was collected, and these data are used to describe a model to estimate the maximum number of calls a channel can handle concurrently based on the number of 9mobile’s channel. The data are used to determine the total load per call setup attempts, the effective load or successful call setup (times), the available channels or successful TCH assignments and also the blocking rate or TCH congestion ratio (%). This was done using correlated analysis hypothesis. In this work, from the result analysis obtained graphically, it was discovered that a lot of available channels are being underutilized especially in areas with low blocking ratio where the available channels exceeded the required channels for transmitting the effective load. Therefore, in reducing impulsive congestion in most of these cells, excess channels that are been underutilized should be converted to other cells that may be experiencing congestion. Thereby will help to reduce traffic congestion and save a lot of cost from been wasted on acquiring more cells or more channels for effective transmission on congested cells should be setting up. Microsoft Visual BASIC programming language was used because of its powerful features with the visual studio 2012 development environment.
The advents of wireless technology have had great impact on globalization of the Nigeria economy since its inception in 2001. But the tremendous growth in subscription have brought some challenges to the operators on how to tackle the occurring congestion in the mobile wireless communication posed in their services and have caused a lot of inconveniences to the subscribers. Since its goal is to provide good quality services to the end users (subscribers) with respect to speech, effective roaming globally and lesser tariffs. GSM has become more advanced and handles more subscribers than the analog systems(6). From the finding of our research, we have well over 9 million users of GSM contending for access almost at the same time in Nigeria, making the country one of the fastest growing GSM markets in Africa and the world at large(9). It is also has that the Nigeria telecommunication market is looking forward to achieve a tele density of 100% by the year 2020 which is driven by the massive telephone and mobile communication improvements thereby requesting for a great increase in the information and communication technology (ICT).