Delay tolerant EPC-BGP for discovery services in EPCGlobal networks

In this paper, we present a new protocol for EPC discovery services, namely Delay Tolerant EPC-BGP (DT-EPC-BGP), which is an extension of the previously proposed EPC-BGP. By inheriting all features of EPC-BGP features, DT-EPC-BGP introduces a new mechanism that allows information about the status of the mesh nodes to be exchanged along with other routing information. This new extension sets update sessions with only active nodes, and drops any update request that is destined to an inactive node. We have evaluated DT-EPC-BGP in terms of blocking probability, similarities among routing tables and number of updates in comparison to EPC-BGP. We have shown that DT-EPC-BGP outperforms its predecessor, EPC-BGP by introducing lower blocking probability, lower inconsistency in routing tables among different nodes, and lower number of updates which leads to less control overhead messages.