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Penn STATE STUDY REPORTS BPL CAPABLE> 1gbps speed
fyi: from UPLC.ORG, JAN.18, 2005
INDUSTRY: PENN STATE STUDY REPORTS BPL CAPABLE OF 1 Gbps SPEEDS
Imagine BPL speeds of 1 Gigabit per second. A Penn State professor says BPL is not far off today, even though speeds now are only in the order of 2-3 Mbps. Professor Mohsen Kavehrad, Director of Penn State’s Center for Information & Communications Technology published an AT&T-funded study which developed a computer-simulated power line transmission model that came close to achieving these speeds under ideal conditions. Prof. Kavehrad stated "if you condition those power lines, they're an omnipresent national treasure waiting to be tapped for broadband Internet service delivery, especially in rural areas where cable or DSL are unavailable." He concluded that junctions and branches in the U.S. overhead grid cause broadband signals to reflect, resulting in degradation and decreased transmission capacity. "The signal can bounce back and forth in the lines if there is no proper impedance matching," said Kavehrad: "The bouncing takes energy away from the signal and the loss is reflected in the ultimate capacity." Under their model, the researchers said repeaters would be placed every 0.62 mile and power lines would have to be modified to reduce interference to data signals. Kavehrad believes that these engineering issues can be resolved, but that interference issues must also be addressed. A copy of the study is available on the UPLC website. |
