Wireless ad hoc networking

The rapid progress of mobile/wireless communication and embedded microsensing MEMS technologies leads us toward the dream “Ubiquitous/ Pervasive Computing.” Wireless local-area networks (WLANs) have been widely deployed in many cities and have become a requisite tool to many people in their daily lives. Wireless personal-area networks (WPANs)
provide a cableless personal working area by using wireless interconnection among devices, such as personal computer, printer, personal digital assistant, and digital camera. A wireless sensor node is an integrated device
which consists chiefly of a sensor part, a wireless communication part, and an information processing unit. Wireless sensor nodes can be deployed in a sensing field to monitor events that we are interested in. In particular, the human body could be a potential sensing field. By backing events in the body area, wearable sensor networks may greatly improve our daily life. By integrating these multidiscipline technologies into a pervasive system, we can access information and acquire computing resources anytime, anywhere with any device. The pervasive system can be used in a wide range of applications such as home automation, health care, transportation, agriculture, scientific survey, industrial automation, and military applications.