Items where Author is "Ngah, Razali"

Ng, Wai Pang, Abd El Aziz, Ahmad, Ghassemlooy, Zabih, Aly, Moustafa and Ngah, Razali (2012) Optimised non-uniform biasing technique for a high-speed optical router to achieve uniform semiconductor optical amplifier gain. IET Communications, 6 (5). pp. 484-491. ISSN 1751-8628

Prakoso, Teguh, Ngah, Razali, Rahman, Tharek, Okonkwo, Uche and Ghassemlooy, Zabih (2011) An evaluation of half-cut technique for microwave-photonic access-point antenna miniaturization. In: Proceedings of the 2011 IEEE International RF & Microwave Conference. IEEE, Piscataway, NJ, pp. 384-388. ISBN 978-1457716287

Abd El Aziz, Ahmad, Ng, Wai Pang, Ghassemlooy, Zabih, Aly, Moustafa and Ngah, Razali (2011) Employing multiple wavelengths for an input packet to achieve uniform SOA gain for high speed optical applications. In: 16th European Conference on Networks and Optical Communications (NOC). Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 99-102. ISBN 978-1612847535

Prakoso, Teguh, Ngah, Razali, Ghassemlooy, Zabih and Rahman, Tharek (2011) Antenna representation in two-port network scattering parameter. Microwave and Optical Technology Letters, 53 (6). pp. 1404-1409. ISSN 0895-2477

Abd El Aziz, Ahmad, Ng, Wai Pang, Ghassemlooy, Zabih, Aly, Moustafa and Ngah, Razali (2010) Employing wavelength diversity to improve SOA gain uniformity. In: The 15th European conference on Networks and Optical Communications, 8-10 June 2010, Faro, Algarve, Portugal.

Abd El Aziz, Ahmad, Ng, Wai Pang, Ghassemlooy, Zabih, Aly, Moustafa, Ngah, Razali and Chiang, Ming-Feng (2010) Impact of signal wavelength on the semiconductor opticalamplifier gain uniformity for high speed optical routers employing the segmentation model. In: Information Sciences Signal processing and their Applications (ISSPA), 10 - 13 May 2010, 10th International Conference on Information Sciences Signal Processing and their Applications (ISSPA), Kuala Lumpur, Malaysia.

Yazdi, Asieh Haieri, Ngah, Razali, Rahman, Tharek and Ghassemlooy, Zabih (2010) Comparison of predicted path loss of the 3GPP spatial channel model with the IMT-advanced model. In: Proceedings of the seventh IEEE, IET international symposium on communication systems, networks and digital signal processing, 2010: 21-23 July 2010, Newcastle - UK, Vol.1. Northumbria University/CSNDSP 2010, Newcastle-upon-Tyne, pp. 354-357. ISBN 978-1861353702

Okonkwo, Uche, Ngah, Razali, Ghassemlooy, Zabih and Rahman, Tharek (2010) Geometrical-based channel simulation model for ultra wideband environment. In: 4th International Symposium on Broadband Communications, ISBC 2010, 11- 14 July 2010, Melaka, Malaysia.

Abd El Aziz, Ahmad, Ng, Wai Pang, Ghassemlooy, Zabih, Aly, Moustafa and Ngah, Razali (2010) SOA gain uniformity improvement employing a non-uniform biasing technique for ultra-high speed optical routers. In: Proceedings of the 7th International Symposium on Communication Systems Networks and Digital Signal Processing (CSNDSP). IEEE, Piscataway, NJ, pp. 642-647. ISBN 978-1861353696

Prakoso, Teguh, Ngah, Razali, Rahman, Tharek and Ghassemlooy, Zabih (2010) A high gain active photonic antenna for high speed backhaul link: a system analysis. In: Proceedings of the 17th International Conference on Telecommunications. IEEE, Piscataway, NJ, pp. 455-461. ISBN 978-1424452460

Abd El Aziz, Ahmad, Ng, Wai Pang, Ghassemlooy, Zabih, Aly, Moustafa, Ngah, Razali and Chaing, Ming Feng (2009) The effect of the input energy on the SOA gain with non-uniform biasing. In: 14th European Conference on Networks and Optical Communications (NOC/OC&I 2009), 10-12 June 2009, Valladolid, Spain..

Prakoso, Teguh, Ngah, Razali, Rahman, Tharek and Ghassemlooy, Zabih (2008) Modelling of all-optical symmetric Mach-Zehnder switch with asymmetric coupler. In: IEEE International RF and Microwave Conference, 2008. RFM 2008. IEEE, Piscataway, NJ, pp. 352-356. ISBN 9781424428663

Abd El Aziz, Ahmad, Ng, Wai Pang, Ghassemlooy, Zabih, Aly, Moustafa, Ngah, Razali and Chiang, Ming-Feng (2008) Characterization of the semiconductor optical amplifier for amplification and photonic switching employing the segmentation model. In: ICTON-MW'08 : International Conference on Transparent Optical Networks "Mediterranean Winter" 2008, 11-13 December 2008, Marrakech.

Ngah, Razali and Ghassemlooy, Zabih (2005) Self-synchronization scheme for OTDM packet signal using a symmetric mach zehnder switch. In: 13th IEEE International Conference on Networks jointly held with the 2005 7th IEEE Malaysia International Conference on Communications, 16th - 18th November 2005, Kuala Lumpur, Malaysia.

Ghassemlooy, Zabih and Ngah, Razali (2005) Simulation of 1 x 2 OTDM router employing symmetric Mach-Zehnder switches. IEE Proceedings: Circuits, Devices and Systems, 152 (2). pp. 171-177. ISSN 1350-2409

Le Minh, Hoa, Ghassemlooy, Zabih, Ng, Wai Pang and Ngah, Razali (2004) Terahertz optical asymmetric demultiplexer switch with a symmetrical switching window. In: Annual London Conference on Communications, 13 - 14 September 2004, London, UK.

Ngah, Razali and Ghassemlooy, Zabih (2004) Noise and crosstalk analysis of SMZ switches. In: 4th International Symposium on Communications Systems, Networks and DSP, 20 - 22 July 2004, Newcastle upon Tyne, UK.

Ngah, Razali and Ghassemlooy, Zabih (2004) The performance of an OTDM demultiplexer based on SMZ switch. In: IEE Seminar on Future Challenges and Opportunities for DWDM and CWDM in the Photonic Networks, 11 June 2004, University of Warwick, UK.

Ngah, Razali and Ghassemlooy, Zabih (2004) Bit error rate performance of all optical router based on SMZ switches. In: 1st IFIP International Conference on Wireless and Optical Communications Networks, 7 - 9 June 2004, Muscat, Oman.

Ngah, Razali and Ghassemlooy, Zabih (2004) Bit error rate performance of an OTDM demultiplexer based on SMZ switch. In: Postgraduate Research Conference in Electronic, Photonics, Communication Network and Computing Science, 5 - 7 April 2004, Hertfordshire, UK.

Ghassemlooy, Zabih, Ng, Wai Pang, Le Minh, Hoa and Ngah, Razali (2004) BER performance analysis of high-speed OTDM all-optical router - demultiplexer using symmetric Mach-Zehnder switch. In: Communication Systems,Networks and Digital Signal Processing CSNDSP 2004, Fourth International Symposium Proceedings. University of Newcastle, pp. 361-369. ISBN 9780701701772

Ngah, Razali and Ghassemlooy, Zabih (2004) Simulation of simultaneous all optical clock extraction and demultiplexing. In: 9th European Conference on Networks and Optical Communications, 29 June - 1 July 2004, Eindhoven, Netherlands.

Als, Adrian, Ngah, Razali, Ghassemlooy, Zabih, Swift, Graham and Chi, Jacques (2003) Simulation of an all-optical recirculating fiber loop buffer employing a symmetric Mach-Zehnder (SMZ) switch. In: 7th World Multiconference on Systemics, Cybernetics and Informatics (SCI 2003), 27 - 30 July 2003, Orlando, Florida.

Ngah, Razali, Ghassemlooy, Zabih and Swift, Graham (2003) Comparison of interferometric all-optical switches for router applications in OTDM systems. In: 4th Annual Postgraduate Symposium on the Convergence of Telecommunications, Networking and Broadcasting, 16 - 17 June 2003, Liverpool, UK.

Ngah, Razali, Ghassemlooy, Zabih and Swift, Graham (2003) 40 Gb/s all optical routing using terahertz optical asymmetric demultiplexer (TOADs). In: International Conference on Robotics, Vision, Information and Signal Processing, 22 - 24 January 2003, Malaysia.

Ngah, Razali, Ghassemlooy, Zabih and Swift, Graham (2003) Simulation of 1x2 OTDM router employing symmetric Mach-Zehnder (SMZ). In: PREP 2003, 14 - 16 April 2003, Exeter, UK.

Ngah, Razali, Ghassemlooy, Zabih and Swift, Graham (2002) Simulation of an all optical time division multiplexing router employing Symmetric Mach-Zehnder (SMZ). In: 7th IEEE High Frequency Postgraduate Colloqium, 8 - 9 September 2002, London, UK.

Ngah, Razali, Ghassemlooy, Zabih, Swift, Graham, Ahmad, Tahir and Ball, Peter (2002) Simulation of an all optical time division multiplexing router employing TOADs. In: 3rd Annual Postgraduate Symposium on the Convergence of Telecommunications, Networking, 17 - 18 June 2002, Liverpool, UK.