Simon Barber Email & Phone Number

San Francisco, California, Us

Lead architect for Cisco's next generation enterprise and campus wireless solution. Developed multiple wireless innovations, 6 patents filed (5 granted so far). Reduced CPU usage of core network stack by a factor of 8. Added a WiFi visualization mode to Wireshark with current 802.11 standard support, and merged this upstream. Used this tool for packet scheduler development enabling almost zero contention WiFi. Resolved VoIP and QoS issues impacting large customers across multiple product lines. Mentored.

San Francisco, California, Us

Founded HashFast, hired team of world class ASIC front end designers, selected best back end design house available and delivered a 1 billion transistor 28nm ASIC with 700w TDP, that beat it's performance spec, from concept to tape-out in under 3.5 months. Led design of hardware, software and thermals, and shipped systems in 7.5 months.Patent application for analog series power control technique, massively reducing system cost.

Palo Alto, California, Us

Published the first ever academic paper on Bitcoin, inventing on chain atomic swaps to create a trustless mixer. Implemented the peer to peer encrypted fabric with NAT traversal as part of a design for a fully decentralized social network based on CCNx where access control was achieved with encryption alone. (www.ccnx.org). Implemented a native C Firefox plugin to enable CCNx content access directly within the browser. Wrote a wireshark plugin to display WiFi traffic on a timeline as part of debugging a customer's WiFi issues. Multiple patents, including Hybrid Vehicle engine optimization, and satellite broadband deduplication.

Palo Alto, Ca, Us

Architected and implemented ease of use, security and networking features for a cloud controlled 802.11 access point. Patented novel security architecture allowing easy and secure new device enrollment even when the cloud is not accessible.

Austin, Tx, Us

Co-chaired this ease of use working group. Led a tiger team on ease of use for ad hoc wireless network scenarios, and successfully achieved consensus between the various member companies.

Led the technical vision of the company through 3 phases - first (pre funding) as a mesh networking company, releasing the first open source 802.11 mesh (OpenAP project). Next (funded) as a managed enterprise wireless lan company. Developed and sold highly differentiated and innovative feature rich SMB solution via multiple tier 1 OEMs. Sold the solution to Broadcom. The 802.11 Softmac component that I architected and wrote substantial parts of is the Linux kernel's core 802.11 implementation. The third phase is as an 802.11 client software and connectivity service supplier, specialising in security and ease of use solutions, which reduced MetroPCS's 3G data usage by 40%.Acquired by Paretum, 2019

Piscataway, Nj, Us

Co-technical editor on the IEEE 802.11 standard, supervising the technical editors of each amendment, improving editorial process and policy and reporting to the Chairs Advisory Committee.

Piscataway, Nj, Us

Started the "Radio Resource Measurement" amendment to the IEEE 802.11 standard.

Consulted on startup strategy, as well as the initial core technical design for Ozmo's revolutionary 802.11 PAN technology. Ozmo was purchased by ATMEL in 2012 for their product line based on my original business planning and technical design.

Moved Firetalk from a proprietary VoIP protocol over to the IETF SIP standard. Dramatically increased the voice quality available by rearchitecting the audio subsystem. Demonstrated excellent interoperability with other VoIP players.

Evaluated VoIP equipment for a complete replacement of the carrier's Circuit Switched backbone, as well as for international call origination. Contributed to pure IP architectures for 2G and 3G migration in MWIF (Mobile Wireless Internet Forum).

Developed mapping and active badge prototype systems. Developed a 120 port VoIP gateway with industry leading latency for the Telecom Infrastructure Division, shown at Supercomm '98.

Alone I implemented the video server for the world's first ever all digital video on demand system. Rearchitected the OS filesystem and networking stack to improve bandwidth on the server from 10% of theoretical maximum to 90% of theoretical maximum.

Developed the ultra-fast turbodriver printer drivers. These became the market leader. Also developed a fax/answering machine card, and reworked the FPGA on a video digitizer and software to add real-time preview with color dithering to the product.