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Wireless sensor networks (WSN) have evolved quickly in recent years, leading to systems such as RF and Zigbee, which are commonly adopted in lights, curfew, elderly - nursing. However, RF and Zigbee system are seldom integrated effectively. This study presents a system built like WebNet, expressed in terms of UML. The proposed system behaves like Zigbee with NS2, since it combines RF with a real-time...
We propose a Zigbee technology based wireless vehicle identification and driver authentication system consisting of a central database of authorized vehicles, Zigbee RF Vehicle tags, RF tag Reader and RF tag Writer. Zigbee is based on IEEE 802.15.4 standard for Wireless Personal Area Networks (WPANs) that is being used in many commercial and research applications today where it has become an attractive...
An ultra-low power (ULP) SoC including an IEEE802.15.4 2.4 GHz transceiver designed in 130 nm CMOS technology is presented. Power consumption was minimized by using a concurrent system and design optimization to avoid the over-specification of blocks. A novel minimum complexity partial correlation algorithm is used in the digital baseband receiver and drains an average of 4802 A (packet PSDU=20 bytes)...
Energy consumption is one of the most crucial design issues in wireless sensor networks (WSN) and largely depends on energy-efficient communication protocols. In order to improve the lifetime of a WSN, the cross-layer optimization technique can potentially be used to jointly optimize the power consumption behavior between various layers of the protocol stack. In this paper we propose a finite state...
ZigBee low power wireless networks, as the fittest plane for WSN in existing, are paid attention to increasing by people. In this paper, we present the topology of tree cluster network, by analyzing the algorithm for routing we propose a method that the first receiving are the best route to implement message routing. To demonstrate its effectiveness, we form a tree cluster network and validate process...
A remote real time AMR (automatic meter reading) system based on wireless sensor networks is presented in this paper. The useful remote AMR sensors were analyzed and efficient wireless network was suggested. The remote measurement system for water supply is taken as a typical example in experiments. The structure of system employs distributed structure based on wireless sensor networks, which consists...
With the promotion of industry community, wireless sensor network (WSN) has been widely applied to many fields. In this paper, current research status and possible development trend of application-oriented wireless sensor network (AOWSN) are introduced firstly. Second, we analyze and compare the short distance wireless communication protocols that can be used in WSN such as ZigBee, Wibree, Rubee,...
Wireless communication supposed a great both - quantitative and qualitative, jump in the management of the information, allowing the access and interchange of it without the need of a physical cable connection. The wireless transmission of voice and information has remained in constant evolution, arising new standards like Bluetoothtrade, Wibreetrade or Zigbeetrade developed under the IEEE 802.15...
The wireless world is shrinking and so is the size of all electronic wireless devices which is aggressively pushing the chip manufacturers to reduce the size and power consumption of their IC's. This work presents a similar case wherein all the blocks of a FEM are tightly integrated on a single die measuring 1500 times 1350 um2 using GaAs E/D p-HEMT process and packaged in 3 times 3 times 0.7 mm3...
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