A short-range radio or short-range device (SRD) is a highly-integrated transceiver, usually on a single chip, that can be used to implement a wide range of wireless data applications. Most single-chip transceivers operate in the industrial-scientific-medical (ISM) bands that are set aside for unlicensed wireless data applications. Popular U.S. frequencies include 315, 433, and 902-928 MHz and 2.4-2.5 and 5.7-5.8 GHz. Yet, the tradeoff is the size of the antenna because the lower frequencies require much longer antennas. The next major wave of information technology will address integrating the physical world with the Internet via the pervasive deployment of mobile and embedded computing devices. The ability to view, search, and interact with the physical world will enhance our lives in numerous ways. Short-range wireless sensor systems characterize a wide range of scenarios, technologies, and requirements, and, currently, the technologies are used for more than just connecting mobile phones or connecting a mobile phone and a computer. In fact, short-range technologies either already are used or are envisioned to be used to form mobile social networks, to access wireless sensor networks, and to build cooperative wireless networks. This session aims at the principles for designing and exploration of various short-range wireless sensor networks with energy constrains.