Analysis of threshold based queue with MMPP arrival process

Access to large web content hosted all over the world by users of Internet is contributing massively in the form of congestion to the Internet traffic. Various approaches have been adopted to solve the quality of service (QoS) issues in Internet traffic particularly the problem of congestion. To provide guaranteed QoS for Internet applications researchers are facing challenges to develop performance evaluation techniques to device novel efficient mechanisms to control the congestion caused by increasing Internet traffic. This paper provides an overview of various approaches to congestion avoidance and congestion control of Internet traffic. It emphasizes mainly on the active queue management (AQM) scheme for congestion control at routers. The analysis will specifically focus on the analysis of a threshold based queue with bursty external traffic modeled by continous time Markov modulated Poisson process (CT-MMPP). Numerical experiments have been carried out to show the impact of thresholds on various performance metrics.