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To: Rob S. who wrote (10947)	4/14/2001 10:51:46 PM
From: eik	Read Replies (1) \| Respond to of 12823

Early statements from these companies indicate that they will to forward with deployments using OFDM technology although it is not at all clear which company or companies they will go with. Rob, could you provide a source for this statement. According to the early statements from Sprint and WorldCom I heard, both companies are waiting for Hybrid's NearLOS ThruWAVE equipment for further deployment. OFDM competitors could never pass the stage of laboratory tests. Right now Hybrid's system is the only one working in licensed spectrum. Thank you.

To: Rob S. who wrote (10947)	4/15/2001 4:12:38 PM
From: axial	Read Replies (1) \| Respond to of 12823

Hi, Rob - That was an outstanding post: a concise overview of the factors pertaining to the emergence of coded OFDM networks. "OFDM is a non line of sight technology" There's been a lot of confusion in the public mind about that. I suppose the confusion hasn't been helped by the inevitable marketing efforts of various companies, which give the impression to the reader that they have solved the LOS issue, while others have not. The issue is further complicated by the question of which frequency is being used. As the frequency drops, from 5 GHz down, the ability of the radio waves to penetrate walls and windows, and to be less affected by atmospherics, increases. This should be apparent to any cell-phone user. But the fact that coded OFDM is designed to achieve higher NLOS effectiveness (designed to use multipath reflections) is one that doesn't seem to have quite sunk in yet. Anyway, the use of coded OFDM and frequencies at 5 GHz and below will mean previously unheard-of wireless reception/transmission. Looking at the range of techniques being planned for these future networks, including MIMO, sectorization, new antenna technologies, macro/micro/picocell heirarchies, mesh topologies, and more, it's clear that the new networks will have, in time, ubiquitous reach. While it is likely that the initial installations will gather the low-hanging fruit, there will be an evolution to higher densities, with conversion to RF/optical (augmenting or replacing wired) backhaul where heavy usage begins to degrade QoS. There's not much to add to your excellent post, except that what is true of the United States is also true of the world, in general. While the US is an important market to any company with emerging technology, the importance of the world market to entrants should not be overlooked. At MMDS frequencies, and in unlicensed spectrum, global efforts to develop high-capacity RF networks using coded OFDM, will, in the end, dwarf the American MMDS market. HiperLAN2 and IEEE 802.11a are both (primarily short-range) expressions of that potential. China, for instance, is possibly destined for a jump straight to a fiber and fixed/mobile wireless connectivity model: Message 15657272 Third-world countries will soon achieve the ability to replicate much of our "wired" infrastructure with relatively cheap, quickly-installed wireless installations. You correctly point out the near-term uncertainties: "I believe that FWBB is finally at the stage of development to explode onto the scene during the next two years. The climate for capital expenditure will probably continue to look bleak for at least six months. Meanwhile, major carriers are diligently evaluating the new systems and readying their plans for deployments expected to kick off by the 1st quarter of next year." The explosive potential of this technology is global, and multi-spectrum. By 2005, the combination of Moore's Law, to which you refer, and economies of scale, will do to this technology what they did to the calculator. Thanks for your excellent post. Regards, Jim

To: Rob S. who wrote (10947)	4/17/2001 6:22:08 AM
From: LTK007	Read Replies (1) \| Respond to of 12823

< I say ‘has been the cost’ because this is really no longer the case.> so you think a 900-1000 dollar installation fee will get america lining up to get FWBB? i personally don't.For instance i have DTV,which aside from original installation fees cost me 800dollars plus a year for a platinum plus subscription rate,and i have virtually no desire to keep adding systems.We have media glut in my view--overkill,as they say.max p.s. also <<< Systems have been recently introduced by Breezecom and are entering trials at several other companies that include a user installable CPE unit.>>> which generally means if the purchaser is himself an accomplished installer,he can do it himself,but generally the purchaser ends paying someone else to do it for him.People like to buy things you carry home in a box and just plug in.