Research on the Priority-Based Soft Real-Time Task Scheduling in TinyOS

Author

Zhao, Yan ; Wang, Qianping ; Wang, Wei ; Jiang, Dong ; Liu, Yiwen

Author_Institution

Sch. of Comput. Sci. & Technol., China Univ. of Min. & Technol., Xuzhou, China

Volume

1

fYear

2009

fDate

25-26 July 2009

Firstpage

562

Lastpage

565

Abstract

TinyOS is an open-source operating system, using Component Description Language NesC for development. TinyOS is designed mostly for wireless sensor network, in which nodes have very limited resources. A representative scheduling mechanism in TinyOS is analyzed and its shortcomings are listed in this paper. An improved design of the priority-based soft real-time task scheduling strategy is proposed after the analysis. After two experiments are carried out on the GAINS nodes, it shows that the new method can effectively improve the communication performance on wireless sensor networks.

Keywords

object-oriented programming; operating systems (computers); public domain software; real-time systems; scheduling; specification languages; task analysis; telecommunication computing; wireless sensor networks; TinyOS; component description language; open-source operating system; priority-based soft real-time task scheduling; representative scheduling mechanism; wireless sensor network; Base stations; Computer science; Electronic mail; Frequency; Information technology; Operating systems; Processor scheduling; Real time systems; Routing; Wireless sensor networks; Priority; Real-time; TinyOS; WSN;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology and Computer Science, 2009. ITCS 2009. International Conference on

Conference_Location

Kiev

Print_ISBN

978-0-7695-3688-0

Type

conf

DOI

10.1109/ITCS.2009.122

Filename

5190136