Unless there guys at BRCM are a bunch of flim flam guy,WHICH I STRONGLY SUSPECT NOT, then I would take the Chief Technical lead at his word when he says they have a working technology in VOFDM.
His comments were they have looked at all of the avaliable alternatives and finally selected VOFDM.
I'm no expert in this area, but this is what I do know, there is no shortage of coding/modulation schemes. The biggest problems with broadband/video, is developing and efficent implementation (both computationally and real-estate wise). This concept of Frequency Division Multiplexing is as old as the hills (i.e a recent example is cassete recording of programs used two tone modulation schemes). The Russians use multi frequency approach for GLONASS, the Russian version of out own GPS. I am hesitant, but on the verge of saying, technically this is almost a step backward! Unless soemone else out there can fill me in, Multi Frequency has the main benefit of providing "Frequency Diversity" which is the main advantage in the presense of Multipath.
Bottomline there is nothing in my mind that would lead me to suspect that the advantages of (VOFDM) are "cooked" up. In my mind this is simply the result of good systems engineering in recognizing what the right implementation is for this particular problem.
As far as other features, of this technology which allows BRCM to do it where others maynot be able to.... Well that is all purely execution(see efficieny above). And from what I read/see of BRCM they can do that.
If questions about the ability of VOFDM to work are what is holding this stock back, then I would say this is a tremedous buying opprotunity, because those worries will be put aside soon enough. Comments
I'm afraid that I'll have to take your word on that. I was just giving my take on what I was reading in the press. Maybe the press was intentionally mislead inorder to give opportunities to buy. Wireless is going to be big.
Well if it helps any, I have a MSECE (signals and systems) from UC Santa Barbara. Have worked in Digital implementations since 1980.
Worked on Missile programs as systems engineer for Video link/Command link with alot of emphasis on multipath effects and countermeasures. This included flight testing with specific objectives to measure/quantify/model these effects.
As a matter of fact the main reason for the Link Margin requirement (link margin is the excess signal level required to insure proper link is trasmitting/receiving) is as a result of multipath issues! By far this is the dominate issue.
An effective/efficent implementation like VOFDM is almost like "best thing since sliced bread" in this broad band arena. Having said that there are other ways to slice bread. But having CSCO backing and this becoming a STANDARD, will insure BRCM success in this market. Remember the best technology does not always win, it is the STANDARD that will win. This is the lynch-pin to this strategy. IMHO