lcn2002 - Field Performance Comparison of IEEE 802.11b and...

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Field Performance Comparison of IEEE 802.11b and HomePlug 1.0 M. K. Lee H.A. Latchman ECE Department University of Florida Gainesville FL 32611 {mklee,[email protected] R. E. Newman CISE Department Univ. of Florida G’ville FL 32611 [email protected] S. Katar L. Yonge Intellon Corporation 5100 W. Silver Springs Blvd. Ocala, Florida 34482 [email protected]
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Motivation HomePlug 1.0 Products now available Like IEEE 802.11b, require no new wires Like IEEE 802.11b, cost-effective Field Tests needed to compare them Previous tests of Homeplug - 500 homes 80% of outlet pairs able to communicate at > 5 Mbps 98% support data rates > 1 Mbps
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IEEE 802.11b Protocol 2.4 GHz band (2.4000 GHz to 2.4835GHz) DSSS (Direct Sequence Spread Spectrum) 1, 2, 5.5, and 11 Mbps raw data rates Physical carrier sense Virtual carrier sense (by MAC) Frames contain duration field NAV (Network Allocation Vector) layer. Access methods: DCF (Distributed Coordination Function) Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) delay-insensitive applications PCF (Point Coordination Function) delay-sensitive applications
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HomePlug 1.0 PHY Protocol Powerline attenuation 20dB to 60dB, function of load OFDM 84/128 carriers 0 Hz to 25 MHz Cyclic prefix for synch Error Control Viterbi/RS with interleaving – payload Turbo Product Codes - control BPSK, DBPSK, DQPSK or ROBO modulation Tone map – channel estimation Usable subcarriers modulation error correction broadcast, frame delimiters: all subcarriers/ROBO
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1. HomePlug 1.0 PHY Frame Format
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This note was uploaded on 01/18/2012 for the course CIS 6930 taught by Professor Staff during the Spring '08 term at University of Florida.

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lcn2002 - Field Performance Comparison of IEEE 802.11b and...

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