Efficient connectivity maintenance for mobile cellular peers in a P2PSIP-based overlay network

Because peer-to-peer (P2P) overlay networks are sell organizing, each peer is required to participate in overlay network maintenance operation. However, for a mobile cellular peer, participation in P2P network maintenance is challenging due to its limited battery life and mobility in cellular access networks. A mobile-initiated connectivity maintenance scheme is proposed for mobile cellular peers in a Peer-to-Peer Session Initiation Protocol (P2PSIP)-based overlay network. The proposed scheme not only enables a mobile peer to make efficient use of its wake-up time but also improves the operation efficiency of the underlying mobile cellular networks.