Service discovery in DEAPspace

The DEAPspace group at IBM Research, Zurich Lab is developing a system in w hich services can be shared between proximate devices. The target environme nt is single-hop short-range wireless systems, and the solution must offer prompt responsiveness for transient devices. In this article, the service d iscovery algorithm is presented. Through this new algorithm, a computing de vice can detect the presence of neighboring devices, share configuration an d service information with those devices, and also notice when devices beco me unavailable. Targeted for wireless ad hoc single-hop networks, this solu tion improves the responsiveness of devices to changes in their environment s. The effectiveness of this algorithm is demonstrated through comparison w ith others that achieve similar goals, considering the responsiveness to ch anges in the local environment, power consumption, and bandwidth requiremen t of devices.