WiWi is a synchronous integrated MAC protocol for bidirectional communication over a strip of wireless devices. It provides deterministic throughput and latency.
In addition, a fault tolerant scheme based on clusters of nodes has been developed to increase reliability and to optimize energy consumption.
The original and main purpose of WiWi is to perform the virtualization of a wired link by means of an ad hoc network, made of a strip of tiny communicators with short-range transmission and reduced power capabilities. However, it is not limited to end-to-end communication, as it can be used to collect data along the path as well, making WiWi act like a sort of wireless conveyor belt. Although short-range transmission could appear somehow as a very limiting constraint, it could be advantageous in certain applications: low power RF transceivers reduce energy consumption and enhance nodes’ survival, preventing also communications flowing along the strip from being intercepted by an eavesdropper.