dc.description.abstract | The telecommunications industry in Somali provides communication and information
services such as, delivery of voice and data over different networks, including mobile
networks. GSM (Global System for Mobile Communication) has grown to become
one of the most used communication system in Somalia compared to fixed lines
(landlines) because of instability in the country. The mobile subscribers have rapidly
increased in the last five years. On the other hand, service qualities provided by the
GSM operators in Somalia have remained extremely bad, and the service quality
suffering from a high drop calls rate, mostly due to lack of resources. Handover
process is a very essential process in the GSM. It’s one of the major key performance
indicators in every GSM network, and it’s linked to the quality of service which each
service provider strives to attain. The failure of the handover process is regarded as
the drop of quality of service which in turn dissatisfies the customers. This thesis,
contributes more on improving call drop rate in general, in order to reduce handover
failure rate and thus save on upgrade costs. This will be beneficial to GSM service
providers to easily optimize their network performance relating to the resource
management. This work is focused on Somali Telecommunication Company where
data was collected, as a sample representation of the whole region. In this thesis,
dynamic guard channel algorithm is presented that was developed using JAVA
Software. The algorithm then prioritizes the handover calls over the new calls. All
handover calls are ongoing calls and if they are dropped it causes frustrations. Matlab
was used to compare real data to the simulated results by use of graphs and charts.
From this thesis we were able to establish and come up with a definitive solution to
the handover crisis befalling telecommunication companies. Through the Dynamic
Guard Channel Algorithm we were able to propose a means of raising the standards of
the region get it to adhere to the set International benchmark of communication.
Furthermore, there were no additional costs on upgrades incurred and being able to
modify and advance an existing system making it operate more efficiently. | en_US |