Congestion Control in Global System for Mobile Communication (GSM) Network using Hybrid Model Algorithm
Publication Date : 01/04/2016
Global System for Mobile Communication (GSM) is a telecommunication network that is used globally for communication services such as voice communication, data connection for fax, short message service (SMS) and full dial-up connection to the internet for e-mail and web browsing. This network especially in Nigeria is faced with serious challenge of traffic congestion, leading to call drops, incomplete calls, cross-talks, distorted or faint talks and other undesirable effects. It is necessary that a means of managing this congestion so that subscribers can get desired satisfaction from GSM available services is taken into consideration. In this paper therefore a hybrid model algorithm for managing signal traffic congestion is developed. Based on the algorithm, the performance of the GSM network is extensively evaluated using the key parameter indicators which include call set-up success rate (CSSR), call drop rate (CDR), call completion success rate (CCSR) and traffic channel congestion rate (TCHCR). In this research work, a hybrid model for managing signal traffic congestion is developed. Based on the hybrid model, the performance of the GSM network is extensively evaluated using the key parameter indicators which include; Call Set-up Success Rate (CSSR), Call Drop Rate (CDR), Call Completion Success Rate (CCSR), Traffic Channel Congestion Rate (TCHCR). The paper discusses different schemes like block time sharing, dynamic allocation without time slicing, dynamic allocation with time slicing with signal sensing, frequently recent call allocation and priority allocation models for providing good Quality of Service (QoS) in GSM networks. A comparison of the performance of the hybrid model with other examined models in congestion centres reveals that the hybrid model has an improved performance (Quality of Service) over the other examined models (non-hybrid models).
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