The Social Internet of Thing (S-IOT)-Based Mobile Group Handoff Architecture and Schemes for Proximity Service

Internet of Things (IOT) is booming and has already been along with us everywhere. The things not only communicate with each other without human intervention but also own some relationships called Social IOT (S-IOT), which is the same as social relationships of human beings. In this work, the S-IOT architecture and scheme called MoGaHo-Prox for a group handoff from a mobile AP to a fixed AP and vice versa in a k-member touring group is proposed, for which members in the group benefit for downloading and sharing of geo touring information, e.g., the contents of Point Of Interests (POIs), in a more efficient way. This work (1) defines an S-IOT architecture and two functional scenarios called m-AP mode and f-AP mode for group touring, (2) proposes two control schemes called the conservative policy and the aggressive policy to handle the group handoff from the m-AP mode to the f-AP mode, and (3) provides control schemes for group handoff from the m-AP mode to the f-AP mode and vice versa. A real system is developed using the Android system and the performance analysis is evaluated from the perspective of expense fee, power consuming, and service time.