D-Overlay: A Delay-Aware Overlay for Gaming Services

Peer-to-peer (P2P) has become an important computing model because of its adaptation, selforganization and autonomy. But how to organize dynamic nodes in P2P networks efficiently for gaming message passing services is still a challenge. This paper present an approach, named D-overlay, a delay-aware overlay for gaming services, to implement node clustering based on link delay of nodes communications in the P2P network. This approach measures the delays among peers, explores the node connectivity together with the connection quality. Then, it builds a service ring for each peer according to its latency status, and keeps the low latency among neighbors by periodical adjustments. D-overlay improves the extensibility and reliability. One system, called PKTown, has been deployed based on D-overlay in CERNET of China.