WSN is integrated with the traditional wired network because many WSN applications involve transferring data collected by sensors to a traditional wired network (e.g., LAN, Internet). The WSN consists of many sensor-actuator (SA) devices with limited amount of storage and processing capabilities that collect information from their environment. The collected data is sent to the gateways and transferred to the applications.
The network is very dynamic (e.g.., devices may fail, wireless links are more likely to fail). Some protocols (e.g., ZigBee) change the device address from time to time. Consequently, it is not practical to use network addresses for SA devices and applications to communicate. It is not uncommon for an application to not know the address or identity of the devices that deliver the information it requires. The application is only interested in the data content.
Integrated WSN and Traditional Network
