TELECOMMUNICATIONS, NETWORK COMMUNICATIONS and MOBILE WIRELESS EXPERT
Dr. Lavian is a technologist, a scientist and an educator with over 30 years of academic and industry experience. He has co-authored over 25 scientific publications, journal articles, and peer-reviewed papers. Dr. Lavian serves as an expert in network communications, telecommunications, Internet protocols, and mobile wireless technologies. He is a named inventor of over 120 issued and filed patents.
AREAS OF EXPERTISE
- Communication networks: Internet protocols; TCP/IP suite, TCP, UDP, IP, Ethernet, 802.3, network protocols, network software applications, data link, network, and transport layers (L2, L3, L4), data center network architecture
- Mobile wireless: Wi-Fi, 802.11 (a/b/g/n/ac), MAC, PHY, OFDM, DSSS, Wireless LAN (WLAN). Cellular systems, GSM, LTE, CDMA, FDMA, TDMA, SMS, instant messaging (chat), mobile devices, smartphone
- Internet/cloud: Web applications, HTTP, e-mail, SMTP, POP, IMAP, Java, C/C++, file transfer FTP, client-server, cloud computing, distributed computing
- Routing/switching: LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, switching, packet switching, network infrastructure, network communication architectures
- Unified Communications: PSTN, circuit switching, IP telephony, VoIP, SIP, RTP, SS7, optical networks, carrier Ethernet, SONET, SDH, WDM, TDM, video/audio conferencing, streaming media.
Communication Networks Expert
Network communications, telecommunications, Internet protocols, TCP/IP suite, TCP, UDP, IP, Ethernet, 802.3, network protocols, network software applications, data link, network, and transport layers (L2, L3, L4), computer networks, and data center network architecture.
Mobile Wireless Expert
Wi-Fi, IEEE 802.11 (a/b/g/n/ac), MAC, PHY, OFDM, DSSS, Wireless LAN (WLAN), GSM, UTMS, CDMA, WCDMA, FDMA, TDMA, as well as 3GPP, 3GPP2, WIMAX, 802,16, Bluetooth and LTE.
Cellular and wireless technologies, architectures, and standards. Cellular networks and infrastructure equipment including cell sites, base stations, handsets, mobile devices, and smartphones. Deep academic knowledge and hands-on experience in designing and implementing solutions consisting of such technologies.
Internet and Cloud Expert
Architecture: web applications, client-server, cloud computing, distributed computing, peer to peer networking, virtual private networks, tunneling, content networking, network security, and mobile applications.
Internet protocols: HTTP, e-mail, SMTP, POP, IMAP, FTP, Telnet, SSH, SNMP, DHCP, DNS, NNTP, POP, SIP, IPv4, IPv6, UDP, TCP, and IPSec.
Programming languages and Software: Java, C/C++, software APIs, network configuration and scripting, network management
Routing and Switching Expertise
LAN, WAN, VPN, routing protocols, RIP, BGP, MPLS, OSPF, multicast, DNS, QoS, switching, packet switching, layer 2 switching, layer 3 switching, layer 4 switching.
Routing, gateways, tunneling, as well as the detailed IETF RFC standards defining the relevant functional architectures, protocol specifications as well as forwarding and routing algorithms.
Networking principles, routing, software and hardware architectures, ASIC, firmware, high-speed backplanes, control plane, data plane, blocking and none-blocking architectures, priority queuing, time-to-live, packet addressing, routing and switching table structures.
Unified Communications Expertise
Public switched telephone network (PSTN) architecture and circuit switching. Internet protocols, and more specifically how these support integrations between the PSTN and IP telephony, SS7, SIP and VoIP.
Video/audio conferencing, streaming media, SMS, instant messaging (chat), presence, e-mail, SMTP, POP, codecs (including but not limited to G.711. G.722, G.729), H.323, MGCP, and RTP.
A scientist, educator, and technologist with hands-on experience, Dr. Lavian has served as Principal Investigator (PI) for three DARPA (Defense Advanced Research Projects Agency) projects and for an undisclosed federal agency’s classified wireless research project.
In addition, Dr. Lavian has directed a networking computation project for the US Air Force Research Lab (AFRL) and pioneered a number of technical firsts, among them leading and developing the first network resource scheduling service for grid computing; managing and engineering the first demonstrated transatlantic dynamic allocation of 10Gbs Lambdas as a grid service; and developing and successfully demonstrating the first wire-speed active network on commercial hardware. During more than a decade in scientific and research roles at Nortel Networks he also created and chaired its Enterprise Data Network Patent Committee.
Outside Business Concerns
Dr. Lavian has served as an Industry Fellow and Lecturer in UC Berkeley’s Industrial Engineering and Operations Research (IEOR) Department and at UC Berkeley Engineering’s Sutardja Center for Entrepreneurship and Technology (SCET). As principal investigator a wireless RF signal startup company CRadar.Ai and as co-founder, CEO and CTO of smartphone wireless telecommunicators service integrator Aybell and its predecessor name, VisuMenu Inc., he has also taken advantage of UC Berkeley’s startup accelerator SkyDeck.
Dr. Lavian served as a principal investigator at CRadar.Ai that improves wireless radio signal phase noise purity by about 100x. The clean wireless radio frequency signal enables a pioneering radar-based object detection system for autonomous vehicles. The startup’s high-accuracy imaging radar complements existing detection systems by sensing objects under poor weather and lighting conditions—fog, rain, snow, direct sun, total darkness—when conventional camera- and lidar-based autonomous driving systems often fail.
As CEO and CTO of Aybell, Dr. Lavian found a way to transform mobile wireless devices and smartphones into visual menu systems that empower consumers to receive fast customer service using mobile application, social media platform, chat bot or browser. The system on a cloud telecommunications system that provides network communications integration to service provider telephony system. He led the design and implementation of the company’s service architecture, which builds on data science analytics, machine learning (ML), artificial intelligence (AI), and statistical learning (SL) advances—as well as cloud-based networking and computing capabilities via Amazon Web Services (AWS) and the Google Cloud Platform (GCP). Aybell is a branding and marketing name of VisuMenu Inc. advanced technologies.
VisuMenu Inc. provides an innovative visual search engine for automated phone menus accessed from mobile wireless devices and smartphones. Serving as the company’s CTO, Dr. Lavian led the design of the search engine for IVR/PBX using Asterisk, SIP, and VoIP. VisuMenu’s system is deployed as a cloud network communications, telecommunications, and cloud computing service via Amazon Web Services (AWS) and Google Cloud Platform (GCP). The advanced technologies Dr. Lavian developed for VisuMenu Inc. have been rebranded as Aybell.