Open AccessEfficient scheduling of sporadic tasks for real‐time wireless sensor networks
Author(s) -
Azeem Mukhtar,
Khan Majid Iqbal,
Khan Samee Ullah,
Gansterer Wilfried
Publication year - 2015
Publication title -
iet wireless sensor systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.433
H-Index - 27
eISSN - 2043-6394
pISSN - 2043-6386
DOI - 10.1049/iet-wss.2013.0065
Subject(s) - computer science , computer network , correctness , wireless sensor network , scheduling (production processes) , real time computing , wireless , distributed computing , engineering , telecommunications , operations management , programming language
Industrial automation requires hard real‐time delivery of data that can be of periodic or sporadic in nature. It is challenging to ensure hard real‐time delivery of periodic and sporadic data to a multi‐hop away destination in a bandwidth constrained environment, such as wireless sensor networks. In this regard, research has been done for joint scheduling of periodic and sporadic data delivery using the IEEE 802.15.4 standard. However, delivery to a destination that is multiple hops away has not been handled. Moreover, the IEEE 802.15.4 standard compliance is not fully taken care of. This study proposes a novel communication protocol that is IEEE 802.15.4 standard compliant, for real‐time delivery of sporadic and periodic data to a destination that is multiple hops away. Implicit decisions at various nodes result in the minimal increase in the control traffic and reduced energy dissipation. The proposed protocol is tested using the OPNET simulator and the correctness is proven through a multitude of simulation results.