CONGESTION CONTROL BASED IMPROVEMENT IN SATELLITE COMMUNICATION SYSTEM FOR ENHANCED QUALITY OF SERVICE.

Author(s): *Isioto, N.N; Nwiure D. B; Dickson, R
Page: 23 - 35
Research Area:
Page DOI:
Published Date:
Published Journal:
Publisher: The Creek Journals
ISSN:
Keywords: Global communication, Congestion control, Communication Satellites, Service Level Agreement Service Level Specification, Quality of Service

Abstract:

This research article aims at using the technique of controlling the congestion at the gateway of satellite communication system in order to enhance the quality of service. In line with the continuous quest to achieving real-time services, remote operations, remote health monitoring, global communication, wide area of coverage, ubiquitous network, among others, emerging trends in telecommunication advancement and technologies have seen satellite communication at a vantage position as a backbone network. This relative advantage of satellite communication over its terrestrial counterpart, has made the satellite system a household name. Consequently, satellite network has experienced increased data traffic in recent times, resulting in serious congestion problems and instability of the satellite system. The effect of congestion and instability is further aggravated by the inherent delay caused by long satellite propagation path, thus leading to poor quality of service (QoS). The need to provide the guaranteed minimum level of services in satellite communication system has gained utmost priority. This is necessary as to adapt both the ground terminal and gateway to changing weather conditions and to attempt to maintain a steady throughput level and ensure Quality of Service (QoS) requirements on queue delay, jitter, and probability of loss of packets. The existing satellite system employs Active Queue Management (AQM) to control congestion in their networks. This mechanism is not equipped with adequate ability to contend with congestion and instabilities due to the dynamic nature and many uncertainties in the satellite system. Therefore, the existing AQM technique is unable to provide a prioritized condition that satisfies QoS requirements to the customers. This research uses feedback control technique in controlling the highly non-linear satellite communication network by developing the system equation, converting the system equation into MATLAB syntax for compatibility with and conduction of analysis in MATLAB software environment. The computation design and simulation were carried out in MATLAB application software. The results show an achievement of 15.73% reduction in settling time and stability level of 228dB. The proposed feedback control-based model when integrated into the satellite gateway introduces the needed robustness into the system and checks varying levels of traffic and dynamic impacts of congestion.

Citations:

*Isioto, N.N; Nwiure D. B; Dickson, R "CONGESTION CONTROL BASED IMPROVEMENT IN SATELLITE COMMUNICATION SYSTEM FOR ENHANCED QUALITY OF SERVICE." Volume 1 Issue 1 Oct, 2025