International Journal of Industrial Electronics and Electrical Engineering(IJIEEE).
Paper Title - Low Power Usage With A Reduced Time Delay In Dmppss By Discarding Dead Packets For Wireless Sensor Network
Scheduling different types of packets, such as real-time and non-real-time data packets, with removal of dead
packets at sensor nodes with resource constraints in Wireless Sensor Networks (WSN) is of vital importance to reduce
sensors' energy consumptions and end-to-end data transmission delays. Most of the existing packet-scheduling mechanisms
of WSN use First Come First Served (FCFS), non-preemptive priority and preemptive priority scheduling algorithms. These
algorithms incur a high processing overhead and long end-to-end data transmission delay due to the FCFS concept,
starvation of high priority real-time data packets due to the transmission of a large data packet in non-preemptive priority
scheduling, starvation of non-real-time data packets due to the probable continuous arrival of real-time data in preemptive
priority scheduling, and improper allocation of data packets to queues in multilevel queue scheduling algorithms. In this
paper, we propose a Dynamic Multilevel Priority (DMP) packet scheduling scheme. In the proposed scheme, each node,
except those at the last level of the virtual hierarchy in the zone-based topology of WSN, has three levels of priority queues.
Real-time packets are placed into the highest-priority queue and can preempt data packets in other queues. Non-real-time
packets are placed into two other queues based on a certain threshold of their estimated processing time. Leaf nodes have
two queues for real-time and non-real-time data packets since they do not receive data from other nodes and thus, reduce
end-to-end delay. We evaluate the performance of the proposed DMP packet scheduling scheme through simulations for
real-time and non-real-time data. Simulation results illustrate that the DMP packet scheduling scheme outperforms
conventional schemes in terms of average data waiting time and end to end delay.
Author - Mohammad Zaid Qureshi, Akshay Kirolikar, Isha Bodkha, N.Showme
Citation - Mohammad Zaid Qureshi ,
Akshay Kirolikar ,
Isha Bodkha ,
Mohammad Zaid Qureshi, Akshay Kirolikar, Isha Bodkha, N.Showme " Low Power Usage With A Reduced Time Delay In Dmppss By Discarding Dead Packets For Wireless Sensor Network " ,
International Journal of Industrial Electronics and Electrical Engineering , Volume-2,Issue-6 ( Jun, 2014 )