Dr. Nidal Khrais is a Senior Manager at Alcatel-lucent. He holds a Ph.D. in Electrical Engineering from The City University of New York. His research areas of interest include next Generation Wireless networks, mobile device management, Quality of Service, mainly, scheduling algorithms and resource allocation & management, 5G/next generation wireless traffic applications and modelling including M2M applications, modelling and improvement of eNB processor occupancy, self similar traffic and its impact on LTE/next generation wireless systems performance and optimization, as well as Cognitive Radio systems.

 Ph.D., Electrical Engineering, The City University of New York.

    Wireless Communications
•    Computer-Aided Analysis Tools for Engineers
•    Electric Power Engineering
•    Elements of Power Systems
•    Data Communications and Networking
 

    QoS, scheduling algorithms and resource allocation & management
•    Mobile Device Management Protocols
•    Next Generation Wireless Traffic Applications and Modelling
•    Cognitive Radio Systems
 

Selected publications

Patents
•    Nidal Khrais, et.al: Method and apparatus of estimating available bandwidth on a packet network. Lucent Technologies October 28, 2008: US07443804 (6 worldwide citation)
•    Nidal Khrais, et.al: Bandwidth packing rate controller for optimizing resource utilization. Alcatel Lucent USA May 3, 2011: US07936675 (1 worldwide citation)
•    Nidal N Khrais: Controller for allocation of processor resources and related methods. Lucent Technologies May 22, 2007: US07221682
•    Nidal Khrais, et.al: Method and system for management of traffic processor resources supporting UMTS QoS classes. October 14, 2004: US20040205752-A1
•    Nidal N Khrais: Channel resource allocation based upon call blocking probabilities. March 29, 2007: US20070070898-A1
•    Nidal N Khrais: Controller for allocation of processor resources and related methods. Lucent Technologies January 22, 2004: US20040013106-A1
•    Nidal Khrais, et.al: Bandwidth packing rate controller for optimizing resource utilization. June 5, 2008: US20080130501-A1
•    Nidal Khrais, et.al: Method and apparatus of estimating available bandwidth on a packet network. June 1, 2006: US20060114834-A1

Journals
•    Nidal Khrais, et. al, ‘QoS Control for Streaming Service in UMTS Networks’. Bell Labs Technical Journal 11(4), 185-200 (2007). Published by Wiley Periodicals, Inc. Published online in Wiley InterScience (www.interscience.wiley.com). 10.1002/bltj.20203.
•    Nidal Khrais, et. al. l’The UMTS Base Station Router’. Bell Labs Technical Journal 11(4), 93-111 (2007). Published by Wiley Periodicals, Inc. Published online in Wiley InterScience (www.interscience.wiley.com). DOI: 10.1002/bltj.20198.
•    Khrais, N.N., and Wagner, R.E..: ‘General (de)multiplexer cascade model for transparent digital transmission’. Journal of Optical Communications. July 1997.
•    Khrais, N.N., Elrefaie, A.F., Wagner, R.E., and Ahmed, S.: ‘Performance of cascaded misaligned optical (de)multiplexers in multi-wavelength optical networks’. IEEE Photon. Technol. Lett. IEEE Photon. Technol. Lett., vol. 8, pp. 1073-1075, Aug. 1996.
•    Khrais, N.N., Elrefaie, A.F., Wagner, R.E., and Ahmed, S.: ‘Performance degradation of multi-wavelength optical networks due to laser and (de)multiplexer misalignments’. IEEE Photon. Technol. Lett., vol. 7, pp. 1348-1350, Nov. 1995.
•    Khrais, N.N., Elrefaie, A.F., and Wagner, R.E.: ‘Performance degradations of  WDM systems due to laser and optical filter misalignments’. IEE Electron. Lett. vol. 31, pp. 1179-1180, July 1995.
•    Nidal Khrais, Ching-Roung Chou, Jae-Hyun Kim  ; "Management of Traffic Processor Resource for Supporting Different UMTS QoS Classes:  Paper submitted to Bell-Labs Technical Journal.

Conferences
•    Khrais, N.N., Elrefaie, A.F., and Wagner, R.E.: ‘Performance degradations due to laser and optical filter misalignments in WDM systems’. OFC’95, Paper TuC5, San Diego, Feb.25-March 1, 1995.
•    Khrais, N.N., Elrefaie, A.F., Wagner, R.E., and Ahmed, S.: ‘Effect of cascaded      misaligned optical (de)multiplexers on multi-wavelength optical network performance’. OFC’96, Paper ThD4, San Jose, Feb.25-March 1, 1996.    
•    Khrais, N.N., Shehadeh, F., Chiao J. -C, Vodhanel, R.S., and Wagner, R.E.: ‘Multiplexer eye-closure penalties for 10 Gb/s signals in WDM networks’, OFC’96, Paper PD33, San Jose, Feb. 25 – Mar. 1, 1996.
•    Nidal Khrais et.al “Report on CRS deployment scenarios and associated technologies”, in the proceedings of the Asia-Pacific Telecommunity/Wireless Group Conference Danang/Socialist Rep. of Vietnam September 2012.
•    Nidal Khrais, “White Space Spectrum in the US”, Invited paper. Asia-Pacific Telecommunity/Wireless Group Conference. Xiamen, People’s Republic of China, April 2012.
•    Nidal Khrais et.al “Introduction to cognitive radio systems in the land mobile service”, n the proceedings of the ITU-R 5A conference. Geneva/Switzerland  November 8 2011
•    Nidal Khrais et.al “Preliminary draft new report ITU-R M.[IMT.CRS] Cognitive radio systems specific for IMT systems”, in the proceedings of the ITU-R 5D conference. Geneva/Switzerland, October 12 2011.
•    Nidal Khrais, “Example of higher utilization due to spectrum pooling enabled by cognitive radio”, in the proceedings of the ITU-R 5A conference. Geneva/Switzerland  June 2011.
•    Khrais, N. N, ‘Resource Allocation and Management Strategies for Voice and N-ISDN Traffic Types’. Aug. 2000; White Paper. Lucent Technologies.
•    Khrais, N. N.: ‘IS-136 mobiles roaming in IS-95 systems’. Universal Wireless Communication Consortium. Nov. 13 1997, Dallas, Texas.
•    Khrais, N. N.: ‘Handoff tests combined with Rayleigh Fading and Doppler Effect. ‘Universal Wireless Communication Consortium’. Dallas, Texas. Nov. 13 1997.
•    Khrais, N. N.: ‘Comparison between the overhead messages in IS-136 and IS-95 systems. ‘Universal Wireless Communication Consortium’. Austin, Texas. Sep. 11, 1997.

Invited committee member

IEEE Workshop on Enabling Technologies for Smartphone and Internet of Things (ETSIoT 2012) 18-21 June 2012, http://cpslab.dgist.ac.kr/ETSIoT/organization.html.

Awards
Bell Labs President’s Award, July 10, 2006.