Hi, Chisy - First, thanks for the post on the potential influence of OFDM in 3G and 4G telephony.
It was only two years ago when I began investigating what is called coded OFDM - a generic term that includes many variants of OFDM that use coding to enhance plain vanilla OFDM. The term would include all the variants - VOFDM, W-OFDM, COFDM, and more.
Anyway, coded OFDM was an little-known quantity to most of the public, and some of us were fortunate to get in on the ground floor.
Despite two year's research, I still find the esoterica of advanced radio engineering difficult to grasp. When I visualize what I have learned, I don't see the parts of the radio system with the same clarity that I see, say, the systems on my truck.
But much of what I have learned (to the extent that I have learned anything) has come from the intelligence and the generosity of many of the posters here. When I first approached this board, posters such as wireless wonk, ftth, Bernard and Frank took the time to respond to my questions, many of which must have seemed tiresome and obvious.
And Ray, the resident wireless curmudgeon, has served as an effective counterpoint, especially last year, when wireless became, more than anything else, a mania. His scepticism causes one to constantly re-evaluate assumptions, and that, to me, is good.
FWIW, I am just a hairy old carpenter; I value highly access to the opinions of engineers, and long-time practitioners in the black arts of the telecosm, found here, and on Frank's thread. But I also value highly thinking that is 'out of the box', that is sharp, and logical: and no professional association, that I'm aware of, has cornered that market.
To his great credit, I have found few people with Frank's wide-ranging curiosity, and willingness to entertain new concepts and ideas.
Finally, on the "W", and "V", and "X" OFDM words, I invite you to the Wi-LAN board; not to "sell" Wi-LAN to you, but because we keep a pretty good eye on what's happening in this exciting area of radio modulation: the players, the alliances, the standards and the technology. We'll be happy to point you to any number of resources in this area, should you wish. The following post would be as good a place to start, as any:
Message 15333699
I'll close by saying "Welcome to TLM", if I may. This is a tough crowd, but not an unforgiving one. Differences of opinion can occasionally be sharp, but seldom rude. I hope you find the dialogue as rewarding as it has been for me: knowledge and understanding are the investor's most valuable assets. This is a wonderful thread: in its area, there is no finer.
Regards,
Jim |
