Subject: RE: [NEXTEL-1] EE Times - Wireless modulation gets novel spin

From: Bill McLain <[email-masked]>
Date: Wed, 20 Nov 2002 14:29:31 -0600

Why I think we are beginning to sound like AM the FM carrier, cancel the
carrier and detect the sidebands, modulate the sidebands at an audio
rate!--been around for a long time.  Makes for great phase comparisons for
aircraft navigation!!

-----Original Message-----
From: Jack Daniel [mailto:[email-masked]]
Sent: Wednesday, November 20, 2002 1:10 PM
To: [email-masked]
Subject: Re: [NEXTEL-1] EE Times - Wireless modulation gets novel spin

Yep.

And I recall doing tests on dual FM+AM and independent deviation FM
(different info on + than - freq shift).... in the early 60's. There
IEEE were papers describing "Single Sideband FM". 

We've rolled ove a couple of generatons, so it time to re-invent the
wheel.

But I may be wrong......
Jack Daniel
=====================================

Alan Dixon wrote:
> 
> Didn't someone here just get finished saying that one day soon,
> someone
> would "invent" analog modulation all over again?  Looks like this
> could
> be it???
> 
> Cheers, Alan
> [email-masked]
> 
> --------- Original Message ----------
> From: Marcel <[email-masked]>
> To: <[email-masked]>
> Date: Tue, 19 Nov 2002 23:54:47 -0500
> Subject: [NEXTEL-1] EE Times - Wireless modulation gets novel spin
> 
> http://www.eetimes.com/story/OEG20021115S0031
> 
> --
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>     [Search]         Wireless modulation gets novel spin
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>    [departments]     By Junko Yoshida
>    [Semiconductors]  EE Times
>    [Systems & SoftwarNovember 18, 2002 (2:02 p.m. EST)
[Image][Image]
>    [EE Times' Resourc  for Design Tools & Methodologies]
>    [Technology]      MUNICH, Germany - A Berlin company showed a novel
wireless modulation
>    [EE Times' Work & scheme here that's said to be far more efficient than
Bluetooth, Zigbee or
>    [EE Times' ResourcWiFi in terms of bandwidth, transmission power, data
rate and cost.
>    [EE Times' Analog Nanotron Technologies GmbH, a 10-year-old research
company that recently
>    [EE Times' Resourcbecame a fabless chip maker, is pitching the
proprietary RF system as a
>    [Your information fundamentally different physical-layer (PHY)
technology that ultimately
>    [Image]           could compete against ultrawideband technologies.
>    [Image]           Nanotron's Multiple Dimension Mutiple Access (MDMA)
scheme, which got its
>    [Image]           first public airing at the Electronica trade show,
which began Tuesday
>    [Image]           (Nov. 12), operates in the license-free 2.4-GHz ISM
band. MDMA uses
>    [Image]           multiple modulation techniques - not just one, like
conventional wireless
>    [Image]           technology - including AM, FM and phase modulation.
>    [Image]           "We are taking well-known principles you can find in
every elementary
>    [Image]           wireless-technology textbook," said Manfred Koslar,
chief executive
>    [Image]           officer at Nanotron. The transmission system, which
he termed extremely
>    [Image]           reliable, can be built using surprisingly simple
transceivers and
>    [Image]           receivers, he added.
>    [Image]           Nanotron's RF transceiver chip,  [Image]
>    [Image]           scheduled for sampling in March,
[Image] [Image]
>       [Network Resouroffers a 2-Mbit/second data rate
>    [International Jobover a 700-meter range outdoors and 60-meter range
indoors, on 10
>          [button]    milliwatts of power.
>                      MDMA technology, in principle, "can scale on the fly"
up to 128 Mbits/s,
>    [eCyclopedia]     claimed Hubertus von Janecek, director of sales at
Nanotron. Because MDMA
>         [Image]      requires no need for synchronization in time or in
frequency, it saves
>                      both energy and time. In addition, having no need for
error correction
>    [eLibrary]        means obviating a DSP - and, thus, cost savings, von
Janecek added.
>         [Image]      Nanotron demonstrated the MDMA technology at the show
here using discrete
>                      components.
> 
>    [Online Seminars] Initially, the RF transceiver chip was fabricated
using Atmel's
>         [SEARCH]     0.35-micron silicon germanium process, but Nanotron
expects to move to an
>                      all-CMOS process, von Janecek said. The transceiver
will integrate PHY and
>    [Image]           media-access control in one chip with an SPI
interface to a low-cost 8-bit
>     Online Editions  microcontroller. Only 4 Mbytes of ROM is necessary to
store both MAC and
>     EE TIMES         dynamic link-layer codes, while 256 bytes of RAM is
sufficient to run
>     EE TIMES ASIA    MDMA.
>     EE TIMES CHINA
>     EE TIMES KOREA   Additional components necessary for the MDMA-based
ultralow-power
>     EE TIMES TAIWAN  transceiver are an ISM-band antenna, a SAW filter
that is supplied with
>     EE TIMES UK      the chip and software protocol stacks. The chip will
be priced at "less
>                      than $10" in 10,000 units, von Janecek said. An
evaluation kit is due in
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