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Wireless Sensor Networks (WSN) is a powerful technology that can be used in many application domains varying from geology surveillance to medicine healthcare. However, current protocols for WSN are not suitable to handle the WSN applications with high mobility of sensor nodes. In this paper, we present a protocol named CIVIC designed for Vehicular Ad-hoc Network. This protocol is based on one-hop...
Wireless Sensor Network 'WSN' is an active research field which explores many technological challenges, while the WSN node design is one of the most challenging areas. Nowadays, many wireless sensor nodes are implemented such as BTnodes, l'ESB/2 nodes, SmartTags, EYES node, TinyNode, Mote, Mica2, Tmote Sky, Atlas and Imote. Note that, all these wireless sensor nodes are quite similar in term of functionality...
Along with the progress of science and technology, the sensor technology rapidly develop, miniature sensors appeared and were used in the world. Wireless sensor network is composed of sensors and base stations as network nodes, which in a variety of areas has very broad application prospects. The definition and calculation of sensor network life has caused great concern in the academic community....
Heart diseases are the serious health threats to human beings. Traditional cardiac monitoring systems are unsatisfactory to prevent the sudden death events caused by heart diseases. A pervasive cardiac monitoring system is thus developed, which can provide a real-time continuous cardiac care and arrhythmias detection service for any person at any time in any place. This paper gives a detailed description...
At present, the OSs (Operating system) employed for WSN (wireless sensor networks) are either satisfied with only one or two application classes or unsuitable for strict-constrained resources. In view of a variety of WSN applications, there is a need of developing a self-adaptable and self-configurable embedded real-time operating system (RTOS). This paper presents a resource-aware and low-power RTOS...
Wireless sensor network presents a self-organizing, wireless, ad hoc communication network that trades lower data throughput and higher message latency for lower cost and lower power drain. Conventional wireless routing protocols generally cannot satisfy the particular requirements of WSN applications to build reliable and efficient communication links. CIVIC is a location-based hybrid routing protocol...
The operating systems of wireless sensor networks should be suitable for strict-constrained system resources and support two operation modes: event-driven & multi-threading. Traditional embedded operating systems are generally not fit for WSN applications. This paper presents a smart, resource-aware, low-power-consuming and distributed real-time micro-kernel: LIMOS. LIMOS adopts an event &...
Many routing protocols have been proposed for sensor network, but most of them have not designed with security as a goal. Sensor protocol for information via negotiation (SPIN) protocol is a basic data centric routing protocol of sensor networks. In this paper, we present the design of secure-SPIN, a secure extension for the SPIN protocol. We divide secure-SPIN into three phases and use some cryptographic...
TinyOS is a natural event-driven single-task system. It fits for the single-task specific-application but not for the real-time multi-task application; while, SDREAM is a typical distributed real-time micro-kernel. It supports real-time multi-task applications but normally consumes more resources. This paper presents a novel hybrid real-time micro-kernel: LIMOS (lightweight multi-threading operating...
Wireless sensor network is a revolution of information sensing and collecting, where the sensor nodes communicate via multi-hop wireless links. The task of management of Wireless sensor networks in environments with hundreds and thousands of sensor nodes is significantly more challenging than stationary and wired networks. In this paper, we present the distributed management architecture of wireless...
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