From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp76.iad3a.emailsrvr.com (smtp76.iad3a.emailsrvr.com [173.203.187.76]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 77FA23CB37 for ; Thu, 26 Sep 2019 21:14:47 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=g001.emailsrvr.com; s=20190322-9u7zjiwi; t=1569546887; bh=TBsmp2/26rFJvDOb/XmojUbiNGRC92C4E3AU77QcXS0=; h=Date:Subject:From:To:From; b=hlBq1KovzRmvSXznndVqAruImfof1WZG6Bm6Mm3j/HXwTrf0TGcnnBR4e5t3tX3Hs buHWd7GkQydM6sozg1hm8H096tvYJ5FEHmCbFi9kg8bIu0SB2anojZ0wSzxWfdSuZl YjGxcksSPz2ucwsh5lb3Kfpx5UX1/d0821beiV6Q= Received: from app46.wa-webapps.iad3a (relay-webapps.rsapps.net [172.27.255.140]) by smtp2.relay.iad3a.emailsrvr.com (SMTP Server) with ESMTP id 3528C18A6; Thu, 26 Sep 2019 21:14:47 -0400 (EDT) X-Sender-Id: dpreed@deepplum.com Received: from app46.wa-webapps.iad3a (relay-webapps.rsapps.net [172.27.255.140]) by 0.0.0.0:25 (trex/5.7.12); Thu, 26 Sep 2019 21:14:47 -0400 Received: from deepplum.com (localhost.localdomain [127.0.0.1]) by app46.wa-webapps.iad3a (Postfix) with ESMTP id 20352C0051; Thu, 26 Sep 2019 21:14:47 -0400 (EDT) Received: by apps.rackspace.com (Authenticated sender: dpreed@deepplum.com, from: dpreed@deepplum.com) with HTTP; Thu, 26 Sep 2019 21:14:47 -0400 (EDT) X-Auth-ID: dpreed@deepplum.com Date: Thu, 26 Sep 2019 21:14:47 -0400 (EDT) From: "David P. Reed" To: "Dave Taht" Cc: "Bob McMahon" , "Make-Wifi-fast" MIME-Version: 1.0 Content-Type: text/plain;charset=UTF-8 Content-Transfer-Encoding: quoted-printable Importance: Normal X-Priority: 3 (Normal) X-Type: plain In-Reply-To: References: Message-ID: <1569546887.128430291@apps.rackspace.com> X-Mailer: webmail/16.6.0-RC Subject: Re: [Make-wifi-fast] 20 year anniversary of wifi X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Sep 2019 01:14:47 -0000 A small correction/enhancement to the note from Teresa Meng. Maybe it is be= cause I'm much older than her.=0A=0AThe U-NII band opening up in 1997 was N= OT the first move by the USG to create open communications. The first move = was the creation of enhancements to Part 15, and the allowance of spread-sp= ectrum modes (FHSS and DSSS) on 2.4 GHz ISM band under Part 15.=0A=0AThe co= re person involved in that Part 15 expansion was Dr. Michael Marcus (a good= friend of mine) who at the time worked for the FCC in its Office of Engine= ering and Technology. (his website is here http://www.marcus-spectrum.com/)= .=0A=0ADr. Meng was not around at the time, so I'm not surprised she isn't = aware of the history before she became involved in her work. FHSS and DSSS= modes didn't require the advanced digital modulation mechanisms she refers= to, which enabled OFDM (OFDM requires the fourier transform, which can onl= y practically be done algorithmically).=0A=0AThe U-NII band (5 GHz) was the= result of major efforts, led mostly on the political side by Apple Compute= r Inc. and in particular Jim Lovette, an engineer in Apple's advanced engin= eering, many years earlier, in 1990. Jim, along with others at Apple, and e= ven with some support from Lotus, where I was VP and Chief Scientist, made = the case that we needed much more open and freely usable spectrum than the = 2.4 GHz and 900 Mhz spectrum that was already in use. (https://books.googl= e.com/books?id=3DGTwEAAAAMBAJ&lpg=3DPT5&ots=3DCAM_c7p1qh&dq=3DJim%20Lovette= %20Apple%20radio&pg=3DPT5#v=3Donepage&q=3DJim%20Lovette%20Apple%20radio&f= =3Dfalse)=0A=0AI knew many of the folks who built 802.11b (prior to U-NII b= and) and prior to the creation of the WiFi "cartel" who created the brand n= ame WiFi. This is why I'm annoyed at the attempt to make 1999 its "birth". = That's just false. It was NOT created by an industry cartel. =0A=0A=0A=0AOn= Thursday, September 26, 2019 6:32pm, "Dave Taht" sai= d:=0A=0A> Great article, bob, thx!=0A> =0A> People *wanted* wireless freedo= m. Everybody had a laptop and a modem,=0A> and a pcmcia slot. One business = model that lasted only briefly was=0A> coffee shops renting pcmcia cards...= ..=0A> =0A> =0A> On Thu, Sep 19, 2019 at 12:10 PM Bob McMahon wrote:=0A>>=0A>> For what it's worth, Teresa Meng (founder of= Atheros) said in 2004=0A>>=0A>> https://queue.acm.org/detail.cfm?id=3D9844= 69=0A>>=0A>> "TM: There are three basic ingredients in the technology. The = first is definitely=0A>> signal processing. In the past two decades a lot o= f research and industry=0A>> achievements have made it possible for us to u= nderstand how to transmit signals=0A>> through a wireless medium, based on = sophisticated signal processing algorithms.=0A>>=0A>> Second, in the late = =E2=80=9990s, it became possible to implement gigahertz RF=0A>> circuits us= ing digital CMOS technology=E2=80=94the predominant technology that=0A>> pe= ople have been using for implementing microprocessors and memory.=0A>>=0A>>= The third ingredient is the opening up of the unlicensed band. Before 1997= , for=0A>> example, a carrier would have to pay a lot of money=E2=80=94in t= he billion-dollar=0A>> range=E2=80=94to the government to have the right to= use a bandwidth of several=0A>> megahertz for their cellphone service. In = 1997, the U.S. government opened up the=0A>> 5GHz UNII band that allows unl= icensed users=E2=80=94everybody in the United=0A>> States=E2=80=94to use up= to 550 megahertz of bandwidth, as long as they follow the=0A>> rules.=0A>>= =0A>> With the availability of wide bandwidth and CMOS technology being adv= anced enough=0A>> to process the bandwidth at this frequency, and with the = signal processing=0A>> know-how=E2=80=94all this created what I call the = =E2=80=9Cwireless revolution=E2=80=9D=0A>> that freed us from the previous = notion that wireless communication is expensive,=0A>> inherently constraine= d by a low data-rate, and is scarce. Bandwidth used to be a=0A>> very scarc= e commodity, which is not true anymore with the opening up of=0A>> unlicens= ed bands. This is the path Atheros would like to lead: to change=0A>> peopl= e=E2=80=99s view of wireless service from tele-communication to more of a= =0A>> data-communication notion where equipment can be updated very quickly= and=0A>> inexpensively, and basically provide a level field for competitio= n."=0A>>=0A>> Bob=0A>>=0A>> On Wed, Sep 18, 2019 at 1:33 PM David Lang wrote:=0A>>>=0A>>> I had some homerf devices, they were signfic= antly slower than 802.11b but they=0A>>> were also far cheaper (they were ~= $150 for a card where 802.11b were ~$800 each)=0A>>>=0A>>> a few years late= r the 'junk' vendors started producing 802.11b devices, the=0A>>> prices dr= opped, and they caught on.=0A>>>=0A>>> David Lang=0A>>>=0A>>>=0A>>>=0A>>> O= n Mon, 16 Sep 2019, Dave Taht wrote:=0A>>>=0A>>> > Date: Mon, 16 Sep 2019 2= 3:46:38 +0100=0A>>> > From: Dave Taht =0A>>> > To: Mak= e-Wifi-fast =0A>>> > Subject: [Make-w= ifi-fast] 20 year anniversary of wifi=0A>>> >=0A>>> > I remember experiment= ing with "homeRF". I cannot remember for the life=0A>>> > of me what it was= like.=0A>>> >=0A>>> > and to me, why wifi took off was that it had a stron= g investment by=0A>>> > apple AND heavy interest from the geek community, w= ith a couple=0A>>> > drivers that actually worked, and because of the coffe= e shop=0A>>> > phenomenon....=0A>>> >=0A>>> > Shure, everything else here w= as important, too:=0A>>> >=0A>>> > https://www.wired.com/story/how-wi-fi-al= most-didnt-happen/=0A>>> > --=0A>>> >=0A>>> > Dave T=C3=A4ht=0A>>> > CTO, T= ekLibre, LLC=0A>>> > http://www.teklibre.com=0A>>> > Tel: 1-831-205-9740=0A= >>> > _______________________________________________=0A>>> > Make-wifi-fas= t mailing list=0A>>> > Make-wifi-fast@lists.bufferbloat.net=0A>>> > https:/= /lists.bufferbloat.net/listinfo/make-wifi-fast_____________________________= __________________=0A>>> Make-wifi-fast mailing list=0A>>> Make-wifi-fast@l= ists.bufferbloat.net=0A>>> https://lists.bufferbloat.net/listinfo/make-wifi= -fast=0A> =0A> =0A> =0A> --=0A> =0A> Dave T=C3=A4ht=0A> CTO, TekLibre, LLC= =0A> http://www.teklibre.com=0A> Tel: 1-831-205-9740=0A> __________________= _____________________________=0A> Make-wifi-fast mailing list=0A> Make-wifi= -fast@lists.bufferbloat.net=0A> https://lists.bufferbloat.net/listinfo/make= -wifi-fast=0A