motz |
diumenge, 8. de juliol 2012
telcos versus costs for society motzes, 08.07.2012 12:00h
carrier and wireless p3k set the pointer to an article that carriers are the biggest thread to innovation: today phone companies cling to carrier's coat-tails, "developing what they ask for instead of taking risks and testing new concepts in the marketplace" (McRae, Vizio, link above). anyhow, some companies as google are already investing in new satellite projects: o3b estimated start: 2013. another project in the pipeline is msci's commstellation, a canadian endeavor, scheduled for 2015. carriers and fibre to the home (ftth) another never ending carrier story is "fibre to the home". in the uk farmer's lady chris conder and her team of b4rn are celebrated heroes by uk ispa's recent event. they entered the provider business and dig up the last mile by themselves. they are farmers, so they know how to dig, (guess, that was a quote. yet as i don't have the source by hand, i don't label it as such for the time being.) telcos themselves have done a lot of studies in the 1970s already. they even organized a whole track dedicated to optical communication systems back in 1975 at their "world telecommunication forum". charles k. kao gave a speech at this event. in 2009 he received the noble prize in physics, but even that didn't itch national operating telcos aka ptts up to today. ..The substance of the paper was presented at an IEE meeting on January 27, 1966. Most of the world did not take notice – except for the British Post Office (BPO) and the U.K. Ministry of Defence, who immediately launched major research programs. By the end of 1966, three groups in the U.K. were studying the various issues involved: I myself at STL; Roberts at BPO; Gambling at Southampton in collaboration with Williams at the Ministry of Defence Laboratory. astonishingly c. kao predicted 1975 the deployment of fibre the other way around: first – he thought – short-haul will be provided, long-haul will follow. well in hindsight we know it happened the other way around. we have long-haul and despite testcases as @21 districts in cities, which were funded by the eu+nation state, not many last miles are lit. however, on the 6th of october 1975, the fibre optic world looked promising: ... despite the greater economic benefits of very high capacity systems, it is probably that lower capacity systems, say 2.048, 8.448 or 34.304 Mb/s, may be introduced into heavily loaded parts of junction networks before long-haul high capacity systems. short-haul video links are a likely candidate for early introduction also. economics of fibre-optics as seen in 1975 - the normal trend for decreasing cost per circuit with increasing capacity becomes even more marked with fibre optics, because cable costs do not increase greatly and repeater spacing reduced only slightly with increasing capacity. in need for new equations
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