Wireless sensor network system by separating control and data path (SCDP) for bio-medical applications

Abstract

There is an increasing need to develop flexible, reconfigurable, and intelligent low power wireless sensor network (WSN) system for healthcare monitoring applications. Technical advancements in micro-sensors, micro electromechanical system (MEMS) devices, low power electronics, and radio frequency (RF) circuits and systems have enabled both design and development of such highly integrated system. In this paper, we present the wireless sensor network system, which is separated into control and data paths with different transmission frequencies. The control path sends the power and function control commands from computer to each sensor nodes by 2.4 GHz band. There are four levels in the WSN system. The data path transmits measured data from sensor layer to sensor group layer by 2.4 GHz, and transmits between sensor group, application and system layers by 60 GHz. This hierarchical architecture will make it possible to reconfigurable map application to WSN. The accurate pipeline control system will advance the performance efficiently, and the adaptive low power control system will reduce lots of power consumptions.

Contemporary Developments in Wireless Sensor Networks

“…WSNs can be viewed as a distributed database and hence at application level database technology for extraction and dissemination of information are required. TinyDB, COUGAR and SINA [16] [17]. Detectionand-classification system developed in VigilNet [18] can detect and classify vehicles, persons, and persons carrying ferrous objects.…”

“…Inspiration from natural systems like Swarm Intelligence and Quorum Sensing (e.g., colonies of social insects), with aim at optimising distribution of roles and managing network formation and maintenance has been taken [23] to harness the capabilities of smart sensors and improve the performance of WSN. Some preliminary approaches towards this have been in improving routing, synchronization and aggregation [47][48][49][50][51][52].…”

“…Some of these applications are presented in table 6. For example while human centric applications [66][67][68][69] demand for higher data rates, military applications [70][71][72] [77].…”

A 57∼66GHz CMOS voltage-controlled oscillator using tunable differential inductor

“…Finally, the size of on-body devices is greatly reduced compared with similar systems operating at microwaves. The application of wireless sensor network (WSN) system for healthcare monitoring is demonstrated in [4], which uses the 60GHz band for data transmission between sensor groups. Other research work investigating the in-depth detection capability of the near-field microscopy at 60GHz band has been flourishing for diagnosis of bio-structures.…”

A variable control system for wireless body sensor network

“…Thus, different with many proposed researches that allow sensors to select adjacent notes to transmit commands and data by some complex communication protocols, we proposed the WBSN system architecture by separating control and data path (SCDP) for bio-medical applications [3]. It makes implement of the WBSN system easily and reduce the hardware cost by simple sensor node design.…”