“…Several different wired and wireless networking technologies have been proposed as the underlying communication infrastructure for the smart grid including broadband power line communication (BPLC), Digital Subscriber Lines, cellular wireless (2G, 2.5G, 3G, and WiMAX), IEEE 802.15.4 g-based wireless HANs (ZigBee communication protocols), wireless sensor networks (WSNs), high-speed wireless local area networks (WLANs), e.g., WiFi, and IEEE 802.11 s-based multihop wireless mesh networks (WMNs), etc. Typically, different networking technologies and standards are adopted in different parts of the grid, e.g., PLC and/ or IEEE 802.15.4 g may be used in HANs, IEEE 802.15.4 g and/or IEEE 802.11 s may be used in NANs, while IEEE 802.16 (WiMAX) is used in WANs [4]. All these networks have to be integrated into one larger seamless network to provide efficient data and control flow.…”