The original 802.11 has 3 PHYs: DSSS, FHSS, and infrared. BreezeCOM contributed the hopping sequences and hopping algorithms for the FHSS PHY.
- Patrick -----Original Message----- From: Richard Bennett [mailto:[EMAIL PROTECTED] Sent: Thursday, July 31, 2003 9:20 AM To: [EMAIL PROTECTED] Subject: RE: [BAWUG] 802.11b Long Range non line of sight On 31 Jul 2003 at 5:42, Patrick Leary wrote: > For the record, the company I work for was one of the original pioneers > in WLAN, including donating major elements of the first 802.11 > standard. Which portions were those? The MAC protocol was devised by Photonics and IBM, repackaged as DFWMAC by Symbol, Xircom, and NCR Holland. The Photonics protocol, Photolink II, was developed for an infrared LAN, and encapuslated with RF preambles somewhere in the committee process, which revised the ad hoc mode to make it like a virtual StarLAN hub. IBM's parts of the MAC were the beacon and related constructs, and the Photonics parts were addressing, segmentation, positive acknowledgements, and time slots. Symbol provided a consultant - Greg Ennis - with 802.3 committee experience as advocate for a proposed standard based on the IBM PC Network built by Ennis' former employer, Sytek, rejected by the committee in favor of Ethernet on twisted pair, or StarLAN (1BASE5).. The history of this standard isn't widely known. RB -- Richard Bennett http://www.bennett.com -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless This mail passed through mail.alvarion.com **************************************************************************** ******** This footnote confirms that this email message has been scanned by PineApp Mail-SeCure for the presence of malicious code, vandals & computer viruses. **************************************************************************** ******** -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
