2016 Volume 5 Issue 9 Pages 322-328
Low power communication systems such as ZigBee enable battery-driven sensor nodes in wireless sensor networks (WSNs). Recent growing demand for transferring large amount of data across a WSN requires more energy-efficient communication schemes. Energy efficiency, evaluated in terms of energy-per-bit rate (EBR), determines the upper bound of information quantity that can be transferred while consuming all the energy stored in a battery embedded in each sensor node. TransferJet is one of the most energy efficient wireless communication schemes. It achieves 2–3 orders of magnitude lower EBR than ZigBee, at the expense of very short communication range up to a few centimeters. In this paper, we report on a preliminary experiment of energy efficient signal transmission using TransferJet devices on two-dimensional communication (2DC) system. It worked at reasonably high transmission rate of 71 Mbps with 1.7-nJ/bit EBR. We also explain the feasibility of a room-scale high-speed communication system with such a low EBR based on 2DC technology.