Load Aware Congestion Detection Technique in Internet

The Internet includes various ranges of applications such as multimedia, voice and data but it endures rigorous network congestion. Further, congestion detection is an essential preventive measure must be taken to provide congestion-free Internet. To stipulate proficient technique for congestion detection, in this paper, we propose a load aware congestion detection technique in the Internet. To be aware of congestion in the network, the router estimates the traffic load based on average packet arrival rate and queue occupancy rate. By comparing traffic load with threshold values, congestion notification bit is marked in packets. Before transmitting congestion information to the source, the router differentiates dedicated and shared link by means of link correlation factor. For dedicated link, congestion information is directed only to the corresponding source. Just in case of shared link, congestion information is transmitted to all sources along that link. We show the performance of our technique through simulation results. Our technique efficiently detects and prevents the congestion in the Internet.