DHT-Aid, Gossip-Based Heterogeneous Peer-to-Peer Membership Management

In P2P multicast applications, membership management protocols are the basic utilities. In this context, gossip-based protocols have emerged as attractive ones for that they are highly reliable, scalable and simple. Existing gossip-based membership protocols either ignore the underlying topology and the heterogeneity nature of peer nodes or consume lots of control overhead. In this paper, first, we present a modified scalable membership protocol, MSCAMP, to account for node heterogeneity. Then a DHT-aid, gossip-based heterogeneous peer-to-peer membership protocol, called DIGOM, is proposed. DIGOM groups nearby nodes into clusters and takes advantage of MSCAMP as an intra-cluster membership protocol. A DHT structure is built to aid node subscription and inter-cluster link building. From the theoretical analysis and simulation results, both the inter-and intra-cluster fanout in DIGOM can satisfy the requirements for reliable dissemination. Specially, DIGOM achieves a good quality of load balance and requires no synchronization.