The increasing demands for crop production and quality have significantly increased the
utilization of high quality and productivity green houses. Modern greenhouses are …

ABSTRACT Wireless Sensor Network (WSN) consists of a large population of sensor nodes
capable of computation, communication and sensing. Limited storage, processing, and …

The current automation industry uses WiFi or Bluetooth for wireless automation which has
very high power consumption.[1] There are many wireless monitoring and control …

ZigBee is an industrial standard for low rate and low power wireless personal area networks.
It is based on IEEE 802.15. 4 physical and MAC layers. ZigBee defines the network layer to …

Energy efficiency is critical in wireless sensor networks (WSN) for system reliability and
deployment cost. The power consumption of the communication in multi-hop WSN is …

Improving the network lifetime and saving energy are the performance measurement in
designing any Wireless Sensor Network. Clustering the wireless sensor nodes and …

With applications ranging from environmental and health monitoring to military surveillance
and inventory tracking, wireless sensor networks (WSNs) are changing the way we collect …

As redes de sensores sem fios têm de lidar com todas as adversidades de qualquer rede
sem fios. A transmissão de sinais de radiofrequência em ambientes reais está condicionada …

The present invention relates to a technique for solving security vulnerability of a ZigBee
wireless communication protocol frequently used as a low-power wireless communication …

Abstract IEEE 802.15. 4 is a standard defined for wireless sensor network applications with
limited power and relaxed throughput needs. The devices transmit data during two periods …