A Slotted CSMA/CA of IEEE 802.15.4 Wireless Sensor Networks: A Priority Approach
||International Journal of Computer Trends and Technology (IJCTT)||
|© 2017 by IJCTT Journal|
|Year of Publication : 2017|
|Authors : Sambhaji Sarode, Jagdish Bakal|
|DOI : 10.14445/22312803/IJCTT-V44P106|
Sambhaji Sarode, Jagdish Bakal "A Slotted CSMA/CA of IEEE 802.15.4 Wireless Sensor Networks: A Priority Approach". International Journal of Computer Trends and Technology (IJCTT) V44(1):33-38, February 2017. ISSN:2231-2803. www.ijcttjournal.org. Published by Seventh Sense Research Group.
The heterogeneous traffic categorization is the critical challenge in wireless sensor networks. Therefore, this paper presents the beacon enabled-slotted CSMA/CA with priority approach for delivering the significant data first over the regular traffic. The priority metric is designed to assign the weight factor dynamically for delivering the required data packets at the earliest. It includes delay and priority information for computation of node priority weight and evaluated over the star topology. It is observed that it shows 6% improved performance from the prioritized data frame transmission perspective. The presented work is simulated in ns2 and examined over the various scenarios to validate the performance of the priority approach using CSMA/CA IEEE 802.15.4 wireless sensor networks.
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wireless sensor networks, priority, slotted CSMA/CA, IEEE 802.15.4, delay sensitive.