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Yaakov Stein

Dr. Yaakov Stein


CTO at RAD

Dr. Yaakov Stein is CTO at RAD’s headquarters in Tel Aviv. He is the author of the textbook “Digital Signal Processing, a Computer Science Perspective.” Yaakov’s previous positions include Advanced Technology Manager for Comverse Information Systems and Professor of AI and Computer Science at Polytechnic University (NY). He holds a BSc in Physics, Mathematics and Computer Science, and MSc and PhD in Theoretical Physics. Yaakov received the Israel Defense Award (Israel’s highest award for defense-related research). His areas of interest include SDN and NFV, communications security and encryption, and timing & synchronization.


In his spare time, Yaakov has been known to dabble in amateur radio and ancestry. He also maintains a small museum of the history of electronics and computation.

All Posts by Dr. Yaakov Stein

  • Jul 08, 2019
    5G – hypothetical hype and realistic reality

    The telecommunications community has been so fixated on the question of whether we can afford not attaining 5G as soon as possible that no-one in the community seems to be asking whether we can afford attaining it.

  • Jun 24, 2019
    5G – hypothetical hype and realistic reality

    In the last installment I endeavored to convince you that a lot of what you have heard about 5G is both technologically plausible and has real-life application.

  • Jun 10, 2019
    5G – hypothetical hype and realistic reality

    Unless you live an incredibly sheltered life, you have probably heard a lot about how great 5G is going to be. And unless you are incredibly naïve, you probably don’t believe a word of it.

  • Apr 15, 2019
    Segment Routing

    IP forwarding is typically based on destination addresses (and perhaps the DSCP), but sometimes we need better control over the precise path a packet travels to its destination.

  • Apr 08, 2019
    Network value

    Despite widespread endorsement of competition law theories, the western world has become very monopolistic when it comes to anything that is connected to the Internet. 

  • Apr 01, 2019
    Aggregation and disaggregation

    Smartphones are on everyone’s list of the greatest inventions of all times. In fact, one could even assert that mankind’s major innovations were: 1) fire, 2) spoken language, 3) the wheel, 4) agriculture, and 5) the smartphone. 

  • Nov 19, 2018
    Distributed NFV and Multi-access Edge Computation

    Back in 2012 a group of leading communications service providers joined forces to form the Network Functions Virtualization Industry Specification Group (NFV ISG) under the aegis of ETSI. Since then this group has grown to more than 300 companies and has produced scores of publications.

  • Sep 03, 2018

    In the previous installment we discussed how SDN replaced distributed routing by centralized path computation. But SDN introduced an additional novel abstraction – the whitebox switch.

  • Aug 27, 2018

    As mentioned last time, SDN theorists declare that SDN is the networking technology that separates the forwarding plane from the control plane. Of course the logical separation of networking into planes has been conventional for three decades, and time-honored tradition distinguishes three planes – those of forwarding, control, and management.

  • Aug 20, 2018

    The concept of logical separation of a network’s operation into planes first surfaced during discussions in the ITU on ISDN in the 1980s. After initial proposals favored two planes, it was concluded that three planes were necessary, namely the forwarding plane, the control plane, and the management plane.

  • Jul 16, 2018

    BlockChain is the technology behind cryptocurrencies such as BitCoin and Ethereum, and is becoming a popular mechanism for secure storage of arbitrary information.

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