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This dissertation was written as a part of the MSc in ICT Systems at the International Hellenic University. The purpose of this dissertation is to explore the issues of mesh networking protocols and techniques for Advanced Metering Infrastructure (AMI). A mesh network is the configuration of peer wireless access nodes that allow for continu-ous connections to a network infrastructure, including reconfiguration around blocked paths, by “hoping” from node to node. By AMI we mean systems that measure, collect and analyze energy usage information from advanced metering devices through various communication media. More specifically the entire paper is divided in 2 axes: a) Theoretical: it contains two chapters where there is a report of 3 topologies (Star topology, Tree topology, Mesh topology) trying to identify in which way each one of them can be applied in home or neighborhood area network. The per-spective is which one could support more efficiently AMI. Moreover, there is a detailed description of the protocols used by the above topologies as well as the protocols used by commodity smart meters. b) Practical: we used Opnet Modeler to simulate and investigate which is the most optimal combination of the theoretical part. Specifically, there are many cases available where we tested many different configurations to explore how a net-work could be more efficient and tolerant. In order for this dissertation to be accomplished, the contribution of Dr Tzaras, Dr Koutitas and the academic staff of International Hellenic University was very important and useful. Furthermore, I would like to thank especially my family, Peter, Efi and Christine for their support. Special thanks to Ntek, Geros, Vasi, Vagg, Kriti, Chryssi, George Em, Nikos Red, Peter, Helen K, Kathrine, John Pap, Semina, Apostolos.