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The first decade of the new millennium has been a stage for the rapid development of wireless communication technologies for low-cost, low-power wireless solutions capable of robust and reliable communication . IEEE Standard 802.15.4 for low-rate wireless personal area networks (WPANs)  has been the enabling technology for numerous applications within the field of wireless sensor networks (WSNs) , and more recently, wireless instrumentation. Although WSNs quickly found their way into a wide variety of applications, the adoption of wireless technology in the process automation and manufacturing industries has been slow. None of the industrial solutions based on standards such as IEEE 802.11 , Bluetooth , ZigBee , and Internet Protocol version 6 (IPv6) over low-power wireless personal area networks (6L0WPAN)  have yet to achieve a breakthrough a widely adopted wireless solution for industrial applications. A major reason for this is believed to be the lack of an open, international standard fulfilling the industrial requirements . This changed in September 2007, when the Highway Addressable Remote Transducer (HART) Communication Foundation (HCF) released the HART Field Communication Protocol Specifi cation, Revision 7.0, which included the definition of a wireless interface to field devices, referred to as Wireless HART .