Thread, I've been watching the air interface wars here with great interest, and have received quite an education thanks to some excellent posting by too many folks to mention in one sentence. But something is missing during these discussion, IMO.
A lot is being discussed on the actual air interface, or a-i, but hardly a word is being crafted, it seems, about the back ends of these wireless systems and access platforms. Here, I'm referring to the upper layer networking and administrative parts of those platforms that the carriers will need to deploy and administer, in order to both provide basic services as well as value added services that will enable them to differentiate themselves.
Basically, how wireless will integrate into the rest of the world, both PSTN, and more importantly at some point, the larger Internet around us. Or, is Internet access the end game here, going in, and not to worry about the PSTN? Surely, there are variations on the theme here as well that could, and probably should, be discussed.
Also, if certain a-i's have unique characteristics in these regards, that too would be interesting to hear some discussion on.
Also included among the missing here is any coverage of contention issues, collisions, and arbitration techniques vis a vis maximum and minimal speeds achievable with varying loads, or with the varying numbers of users who might be active on a system at any one time. I suppose that once the air interface issues have settled in here (ah hem, don't hold your breath seems to be what I'm sensing on this, however) we'll get to those other matters. Just adding my two cents.
And I also want to thank the masters here who have provided me and so many others with a great education on the differences between the various xyFDM and other interface and modulation approaches. I know, and you know, who you are. Thanks.
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On another matter, last night I posted an announcement of an upcoming E-commerce seminar that will be held in NY City this week, sponsered by the IEEE Communications Society/NY Chapter, in case anyone is interested. If you look at the link enclosed in the following url, you will also notice mention of another seminar coming up concerning wireless platforms. It picks up immediately after the coverage on the ecommerce event. I tried to extract the wireless specific url component just now, and it seems that the IEEE server might be down or sluggish at the moment. And I am now battling the edit clock, so go with the following, and drill down on your own. The COMSOC site is usually very quick to respond.
Message 11928162
Regards, Frank Coluccio
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