Before xG is either accepted at face value or rejected summarily, idiots (we are all idiots) should read the patents currently issued to xG as well as the applications pending. Reciting Shannon's law or other axiom of the trade is childish nonsense: UWB technology was thrown out by similar arguments. The criticisms from some lazy RF engineers who failed to think out side their boxes fell silent once the technology was demonstrated and now proven to work in chips and devices destined for PAN applications.
A few years ago some fellow engineers said that OFDM FFT based wireless would never be practical in our life times: "to do effective OFDM would take a $300 DSP!.. it just isn't going to happen (fool)" Well, it did happen starting on a large scale with 802.11a and then.11g and now multi-mode chips are selling for the cost of popcorn at the movies (or less).
The point being that everyone in the industry needs to do a periodic rethink about what is possible and practical: many basic assumptions were made because of the inability to design using digital methods or being able to sub-sample (wavelets) at sufficient clock rates to make these differential signaling methods practical. The basic theories behind wavelet transforms, single cycle (limited cycle) modulation methods, etc. have huge potential benefits, much greater magnitude of benefits than, say, OFDM over WCDMA. It is just recently that wavelet pulse, wavelet transform, single cycle signaling methods could be considered in the realm of being practical for mainstream wireless applications.
Oh sure, Shannon's law, signal propagation properties and waveform physics are still the same as they were in the days of Marconi. But the body of wireless theory and practice could not have dreamed of over-sampling single cycle waveforms. Who knows, maybe xG has something, maybe not. The answer isn't going to be found on web boards.
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Before xG is either accepted at face value or rejected summarily, idiots (we are all idiots) should read the patents currently issued to xG as well as the applications pending. Reciting Shannon's law or other axiom of the trade is childish nonsense: UWB technology was thrown out by similar arguments. The criticisms from some lazy RF engineers who failed to think out side their boxes fell silent once the technology was demonstrated and now proven to work in chips and devices destined for PAN applications. A few years ago some fellow engineers said that OFDM FFT based wireless would never be practical in our life times: "to do effective OFDM would take a $300 DSP!.. it just isn't going to happen (fool)" Well, it did happen starting on a large scale with 802.11a and then .11g and now multi-mode chips are selling for the cost of popcorn at the movies (or less).
The point being that everyone in the industry needs to do a periodic rethink about what is possible and practical: many basic assumptions were made because of the inability to design using digital methods or being able to sub-sample (wavelets) at sufficient clock rates to make these differential signaling methods practical. The basic theories behind wavelet transforms, single cycle (limited cycle) modulation methods, etc. have huge potential benefits, much greater magnitude of benefits than, say, OFDM over WCDMA. It is just recently that wavelet pulse, wavelet transform, single cycle signaling methods could be considered in the realm of being practical for mainstream wireless applications.
Oh sure, Shannon's law, signal propagation properties and waveform physics are still the same as they were in the days of Marconi. But the body of wireless theory and practice could not have dreamed of over-sampling single cycle waveforms. Who knows, maybe xG has something, maybe not. The answer isn't going to be found on web boards.