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Shlomo Rakib

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Shlomo Rakib is an Israeli electrical engineer known for his work on Orthogonal Time Frequency and Space (OTFS) and other engineering topics.[1][2] He is the holder of several patents and co-founder and current Chief Technology Officer of Cohere Technologies, which he had co-founded with Ronny Hadani.[3][4] He also co-founded Terayon in 1993.[5]

Shlomo Rakib
Born
Israel
CitizenshipDual: USA & Israel
OccupationElectrical engineer
Academic background
Alma materTechnion University
Academic work
DisciplineElectrical engineering

Education edit

Rakib received a Bachelor of Science in Electrical Engineering from Technion University in Israel.[6] The university's Shlomo Rakib Fellowship Fund is named after him.[7]

Career edit

In the 1980s, Rakib served as a communications engineer in the Israeli Navy.[8] Rakib also served as Chief Engineer at the communications products company PhaseCom from 1981 to 1993. As part of PhaseCom, he developed data and telephony applications.[6]

Shlomo Rakib founded Terayon in 1993 with his brother Zaki Rakib (IPO in 1998).[5][9][10][11] The company initially sold modems before developing other types of broadband technology.[12] Rakib served as the company's president and CTO.[13][14]

Rakib invented Terayon's S-CDMA technology, which is a component of the DOCSIS 2.0 cable data specification used in cable modems,[9][15][16][8]which specifies the protocols and mechanisms for providing high-speed data services over cable television networks.  S-CDMA and DOCSIS 2.0 technology allowed cable operators to provide upstream-intensive broadband applications, including voice over Internet protocol (VoIP), peer-to-peer networking, video conferencing, web hosting, video-on-demand, on-line gaming, and application services.[17]The S-CDMA technology that Rakib developed for Terayon allowed for more efficient utilization of the available bandwidth by allowing multiple signals to occupy the same frequency spectrum simultaneously - enabling higher data rates without requiring additional frequency allocations.[42] It improved security, reduced interference, allows multiple users to share the same frequency band, supports variable data rates and can adapt to changing network conditions.[18][19][20]

S-CDMA technology also allowed cable operators to offer a wider range of services, including high-speed Internet,[21]digital television,[17] and telephony.[22]

As part of Terayon, he also developed data transmission methods utilizing Asynchronous Transfer Mode (ATM) and S-CDMA.[23] Rakib resigned as Terayon's president in 2004, the same year that Terayon announced it would stop investing in its DOCSIS 2.0 product line.[24][25] The firm was acquired in 2007 by Motorola.[26][27]

In 2004, Rakib co-founded Novafora, a company that developed microprocessors for advanced video applications.[28][5] The firm acquired semiconductor and microprocessor company Transmeta in 2009 before it eventually closed in the same year.[29][30][31][27]

Rakib and Ronny Hadani co-founded Cohere Technologies in 2011.[32] They met at one of Hadani's lectures about Orthogonal Time Frequency and Space (OTFS) at the University of Texas at Austin.[33][34][35] and founded the company after Rakib devised the idea to apply OTFS to wireless technology and signal processing.[33][34] The firm focuses on wireless improvements using OTFS and the Delay-Doppler model to improve FDD/TDD spectrum performance.[34][36][37]

In 2012, Rakib founded Gainspeed, a company specializing in DAA (Distributed Access Architecture). The company was initially known as Cohere Networks before being renamed Gainspeed in 2013.[38] The firm was acquired by Nokia in 2016.

In 2021, Rakib became a member of CableLabs' Convergence Council, an advisory board focused on building convergence in the cable industry.[39][40]

Selected publications edit

Rakib's work has been cited by other scholars over 600 times.[41] His work has also been cited in textbooks.[42] His notable works include:

  • Rakib, S. (1997). An innovative cable modem system for broadband communication. 24 - 30. doi:10.1049/cp:19971238.
  • Zarai, Y., & Rakib, S. (2008). Hilbert space-filling by piecewise-linear index transformation. IEEE Signal Processing Letters, 15, 717-720.
  • Monk, A., Hadani, R., Tsatsanis, M., & Rakib, S. (2016). OTFS - orthogonal time frequency space. arXiv preprint arXiv:1608.02993.
  • Hadani, R., Rakib, S., Tsatsanis, M., Monk, A., Goldsmith, A. J., Molisch, A. F., & Calderbank, R. (2017, March). Orthogonal time frequency space modulation. In 2017 IEEE Wireless Communications and Networking Conference (WCNC) (pp. 1–6). IEEE.
  • Hadani, R., Rakib, S., Molisch, A., Ibars, C., Monk, A., Tsatsanis, M., Delfeld, J., Goldsmith, A. & Calderbank, R. (2017). Orthogonal Time Frequency Space (OTFS) modulation for millimeter-wave communications systems. 681-683. doi:10.1109/MWSYM.2017.8058662.
  • “Representation theoretic patterns in three dimensional cryo-electron microscopy III - Presence of Point Symmetries.” Gurevich, S., Hadani, R. and Singer, A. (In preparation).

Selected research edit

Rakib has been granted more than 170 patents during the last few decades.[1][43][44] Notable patents include (among others):

  • US Patent 8170392, Rakib, S.S., Bronstein, A., Bronstein, M., Devictor, G.B.M., "Method and apparatus for generation, distribution and display of interactive video content"
  • US Patent 8547988, Hadani, R. & Rakib, S.S., "Communications method employing orthonormal time-frequency shifting and spectral shaping"
  • US Patent 8879378, Hadani, R. & Rakib, S.S., "Orthonormal time-frequency shifting and spectral shaping communications method"
  • US Patent 9590779, Hadani, R. & Rakib, S.S, "Modulation and equalization in an orthonormal time-frequency shifting communications system"

See also edit

References edit

  1. ^ a b "Google Patents". patents.google.com.
  2. ^ US 8547988, Hadani, Ronny & Rakib, Selim Shlomo, "Communications method employing orthonormal time-frequency shifting and spectral shaping", issued 2011-05-26 
  3. ^ "Cohere Technologies' CEO Shlomo Rakib discusses OTFS and wireless modulation technology". FierceTelecom.
  4. ^ Lead, Telecom (February 2, 2021). "Cohere software improves efficiency of mobile network".
  5. ^ a b c "Terayon Founders Helm Stealthy Startup". Light Reading. August 16, 2007.
  6. ^ a b https://www.sec.gov/Archives/edgar/data/1052303/000089843001500308/d10ka.txt [bare URL plain text file]
  7. ^ "Fellowships – PRESIDENT'S REPORT 2020".
  8. ^ a b Takahashi, Dean (April 9, 1998), Terayon Modem Enters Race For High-Speed Internet Access, The Wall Street Journal
  9. ^ a b "Site not found".
  10. ^ Staff, TheMarker com. "Terayon's quagmire". TheStreet.
  11. ^ California Law Business. Daily Journal Corporation. July 1998.
  12. ^ Holding, Reynolds (November 9, 2003). "Double whammy in stock fraud case / Short sellers trash, then sue, Santa Clara tech firm". SFGATE.
  13. ^ CED. International Thomson Communications. 1998.
  14. ^ America's Corporate Finance Directory 2002. National Register. September 2001. ISBN 9780872178984.
  15. ^ "Selim Shlomo Rakib Inventions, Patents and Patent Applications - Justia Patents Search". patents.justia.com.
  16. ^ "Shlomo Rakib | Technion Israel Institute of Technology - Academia.edu". technion.academia.edu.
  17. ^ a b "Terayon shot up 51% on Wall Street after its patented S-CDMA chosen for new cable coms standard". TheStreet. 2001-09-05. Retrieved 2024-05-23.
  18. ^ Enssle, J.; Halbauer, H.; Otterbach, J.; Schwörer, G. (1999). Leopold, Helmut; García, Narciso (eds.). "Feasibility Model Implementation and Evaluation of an HFC S-CDMA Broadband Return Channel Concept". Multimedia Applications, Services and Techniques — ECMAST’99. Berlin, Heidelberg: Springer: 154–168. doi:10.1007/3-540-48757-3_12. ISBN 978-3-540-48757-9.
  19. ^ Jyh-Horng Wu; Le-Pond Chin (1997). "Synchronous fiber-optic code division multiple access networks with interference cancellations". ieeexplore.ieee.org. 2. IEEE: 471–474. doi:10.1109/SBMOMO.1997.648797. ISBN 978-0-7803-4165-4.
  20. ^ "Performance of Haar wavelet based scale-code division multiple access (HW/S-CDMA) using decorrelating multi-user detector". ScienceDirect. October 2, 2005.
  21. ^ "New cable standard may triple speeds". CNET. Retrieved 2024-05-23.
  22. ^ US6122260A, Liu, Hui & Xu, Guanghan, "Smart antenna CDMA wireless communication system", issued 2000-09-19 
  23. ^ Official Gazette of the United States Patent and Trademark Office: Patents. U.S. Department of Commerce, Patent and Trademark Office. November 1999.
  24. ^ "Shlomo Rakib resigns as Terayon president - Globes". en.globes.co.il. October 3, 2004.
  25. ^ "Does Terayon's CMTS Exit Spell the End of S-CDMA?". LightReading. October 29, 2004.
  26. ^ Reardon, Marguerite. "Motorola boosts TV tech with Terayon buy". CNET.
  27. ^ a b "Cisco, Arris could regret allowing Nokia to become force in US cable". Rethink.
  28. ^ "Novafora to buy once high-flying Transmeta for $256 million". November 17, 2008.
  29. ^ "Novafora Burns Out". Light Reading. August 16, 2007.
  30. ^ "e8vk". www.sec.gov.
  31. ^ "Transmeta buyer Novafora goes under, says report". archive.ph. July 30, 2012. Archived from the original on 2012-07-30.
  32. ^ Cohere raises $35M for expansion, new wireless communications technology
  33. ^ a b "StackPath". www.mwrf.com.
  34. ^ a b c "C Spire to test Cohere OTFS technology". FierceWireless. 6 December 2017.
  35. ^ "Cohere Technologies faces big competition as it vies for 5G air interface". FierceWireless. 6 March 2016.
  36. ^ Reading 2/12/2020, News Wire Feed Light. "Cohere boasts spectrum and capacity multiplier for 4G, 5G". Light Reading.{{cite web}}: CS1 maint: numeric names: authors list (link)
  37. ^ "The Mobile Network » A tale of Open RAN innovation from Cohere Technologies". 29 June 2020.
  38. ^ June 2013, Jeff Baumgartner 07 (7 June 2013). "Cohere Becomes Gainspeed". Multichannel News.{{cite web}}: CS1 maint: numeric names: authors list (link)
  39. ^ "CableLabs takes on role of convergence catalyst". LightReading. April 16, 2021. Retrieved May 23, 2024.{{cite web}}: CS1 maint: url-status (link)
  40. ^ "CableLabs launches mobile convergence initiative". Lightwave Online. 2021-04-22. Retrieved 2024-05-23.
  41. ^ "Salim Shlomo Rakib". scholar.google.com.
  42. ^ Broadband Access Technologies: ADSL/VDSL, Cable Modems, Fiber, LMDS. McGraw-Hill. 1999. ISBN 9780071350600.
  43. ^ "Shlomo RAKIB | CEO". Retrieved 2022-04-30.
  44. ^ "Google Patents". patents.google.com. Retrieved 2024-05-23.
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