Note: comments posted are strictly the opinion of the poster and not necessarily those of Fiber Planners Inc. or any other posters.
Thursday, September 11, 2003
What we're reading tonight:
"Physical and Regulatory Constraints for Communication over the Power Supply Grid" (paper may require IEEE membership to access)
"The authors describe the topology of the power supply network in respect to the deployment of power line communications in different countries. The characteristics of the power line channel are investigated, and the causes of electromagnetic interference from PLC technology in wireless communications services are discussed."
This was a paper published in the IEEE Communications Magazine several months ago by Martin Gebhardt, Frank Weinmann, and Klaus Dostert, University of Karlsruhe.
"Demonstration of the Technical Viability of PLC Systems on Medium- and Low-Voltage Lines in the United States" (paper may require IEEE membership to access)
"Several companies in the United States are interested in applying power line communications for broadband Internet access. The authors provide an in-depth report of one specific end-to-end PLC trial carried out in the United States. The article includes useful information on the various devices utilized to construct the network, the applications demonstrated, and the performance characteristics of the particular field trial selected as emblematic."
This paper by George Jee of Con Edison and Ram Das Rao and Yehuda Cern from Ambient Corporation describes Con Ed's trial of Ambient's powerline broadband equipment in the New York area. One thing I did not understand from an outside plant standpoint is why they located their "X-nodes" (transformer bypasses) in the communications space; it would seem cheaper and easier just to keep in the supply region. If the pole is so crowded that there's no room for it in the supply region, then the pole is probably even more crowded in the communications space.