Reactive GTS Allocation Protocol for Sporadic Events Using the IEEE 802.15.4. (3rd August 2014)

• Record Type: Journal Article
• Authors: Azeem, Mukhtar; Khan, Majid I.; Faheem, Yasir; Tamimy, Manzoor Illahi; Malik, Najmus Saqib; Khan, Abid; Ahmed, Mansoor
• Other Names: Paul Anand Academic Editor.
• Is Part Of: Mathematical problems in engineering. Volume 2014(2014)
• Publication Date: 2014-08-03
• Subjects: Engineering mathematics -- Periodicals; 510.2462
• DOI: 10.1155/2014/836524
• Languages: English
• ISSNs: 1024-123X

Abstract

Abstract : Wireless sensor networks (WSNs) find applications in the industrial automation where periodic and sporadic events occur. The combined propagation of information generated by periodic and sporadic events from a sensor node to an actuator node is challenging due to random nature of sporadic events, particularly, if the deadlines are hard. The IEEE 802.15.4 standard provides the basis for a real-time communication mechanism between neighboring nodes of the WSN at the media access control layer. However, the standard does not address such communications over multiple hops. To support the industrial applications with such requirements, this work proposes a novel online control protocol that exploits the basis provided by the IEEE 802.15.4 standard. The proposed control protocol ensures that a given offline sporadic schedule can be adapted online in a timely manner such that the static periodic schedule has not been disturbed and the IEEE 802.15.4 standard compliance remains intact. The proposed protocol is simulated in OPNET. The simulation results are analyzed and presented in this paper to prove the correctness of the proposed protocol regarding the efficient real-time sporadic event delivery along with the periodic event propagation.