part_7a_HPAV_PHY - HomePlug AV PHY R Newman University of...

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Unformatted text preview: HomePlug AV PHY R. Newman University of Florida What is HomePlug AV? • Broadband PLC for home networking • Open industry standard – 6+ manufacturers (including Intellon) • Developed 2003-2007 by Homeplug Powerline Alliance (HPA) – Consortium of chip designers, OEMs, PLC users – Products shipped in 2006 • Second ethernet class PLC, most widely available – 150 Mbps coded PHY data rate – 0ver 40 million units shipped • Comprises – PHY – modulation, coupling, FEC, etc. – MAC – medium access, ARQ, etc. Reference Model Protocol Layer Architecture HPAV Networks • Physical Network (PhyNet) – Relative to a station (STA) – All other STAs able to communicate with the reference STA • Logical Network (AVLN) – Has a Central Coordinator (CCo) STA – Set of STAs with same • Network ID (NID) and • Network Membership Key (NMK) (usually) AV Logical Networks • Neighbor networks • Hidden nodes A CCo1 B C D CCo2 AVLN_2 AVLN_1 E F HPAV STA Roles • STA = Level-0 CCo (no QoS support) – Assoc/Authenticate new STA – TEI provisioning – CSMA operation – Neighbor Network (NNW) passive coordination • Level-1 CCo = Level-0 plus: – TDMA operation/scheduling/admission control – GLID provisioning – Uncoordinated mode with NNWs • Level-2 CCo = Level-1 plus: – Coordinated mode with NNWs HPAV PHY • Windowed OFDM – 917 carriers 1.8 – 30 MHz • 40.96us symbol time, 4.96us rolloff • Variable Cyclic Prefix • Turbo Convolution Codes, copy codes • Robust Frame Control (-5 dB) • Robo Modes (5 & 10 Mbps) • Bit Loaded Payload – Tone Maps synchronized with AC line cycle – coherent modulation up to 1024-QAM – 200 Mbps channel rate/150 Mbps information rate HPAV Transceiver 1.0.1 Frame Control Encoder AV Payload Data Encoder AV Frame Control Encoder Scrambler Mapper IFFT (384,...
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part_7a_HPAV_PHY - HomePlug AV PHY R Newman University of...

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