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A hierarchical machine-to-machine (M2M) communication network, where multiple heterogeneous devices compete for transmission on congested links, is considered. In such a network, the cluster headers gather the network coding and routing messages from multiple M2M devices and forward them to the cellular network. We propose a novel discriminatory user-based utility mechanism for network coding users and routing users. The price of anarchy (PoA), which is used to characterize the worst-case efficiency bounds, is analyzed. The simulation results show that network coding could promote the efficiency to a certain extent. © 2013 Gang Wang et al.

A Game-Theoretic Analysis of Multiple Protocol Data Flows in Hierarchical M2M Communication Networks