PAR: A proactive queue mechanism for multi-hop wireless networks

In this paper, a new queuing mechanism called proactive agile response (PAR) Queue proposed for the multi-hop wireless node that regulates the queue buildup and stabilizes the traffic flows under heavy traffic condition. The PAR uses multilevel packet marking with no additional computational complexity that notifies and controls congestion at its incipient stage. The PAR queuing algorithm supports dual queue approach, the principal buffer store data packets and the auxiliary buffer for control data packets, thereby ensuring no loss of packets due to buffer overflows. The simulation results were clear and convincing that the proposed PAR outperforms the existing standard queue mechanisms with greater improvement in throughput and reduction delay and dropping probability for different traffic conditions.