A proposal on ad-hoc pairing of a mobile device and a public device

For the purpose of cooperation between a user's mobile device and a public device, we propose ad-hoc pairing, which dynamically generates a pair of a mobile device and a public device. The proposed method has the feature to generate the pair required by a user steadily with few errors and few retries. We measure the period required for pairing procedure via the implemented system to evaluate the efficiency of the proposed method.