Garis besar topik
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OPERATING SYSTEMS FOR WSN
WSNs can be used to monitor and/or control physical environmentin space where it is difficult or impossible to do so manually. A W S N is generally composed of a centralized station (sink) and tens, hundreds, or perhaps thousands of tiny sensor nodes such as Mote [10.1] and Mica2 [10.1]. With the integration of information sensing, computation, and wireless communication, these devices can sense the physical phenomenon, (pre-)process the raw information, and share the processed information with their neighboring nodes. The sensor nodes can form a WSN either ad hoc or with, for example, a cluster-based architecture.
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Siswa harusTandai selesai
The traditional OS is system software that operates between application soft ware and hardware and is oft en designed for workstations and PCs with plenty of resource s. This is usually not the case with sensor nodes in WSNs. There are also embedded operating systems such as VxWorks [10.21 ] and WinCE [10.22], none of which is specially designed for data-centric WSNs with constrained resource s. Sensors usually have a slow processor and small memory, different from mos t current systems. In this chapter, parameters that should be kept in mind in the process of OS design for WSN nodes are considered.
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