Telecommunications & Data Communications Expert Witness Services

Dr. Lavian Provides Services in Network communications, telecommunications, Internet protocols, and mobile wireless including:

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.
Dr. Lavian Provides Services in Network communications, telecommunications, Internet protocols, and mobile wireless including:

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.

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Education

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.

His Expertise

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.