College of Sciences staff

Dr Nasim Ahmed staff profile picture

Contact details +64 (09) 414 0800  ext. 43198

Dr Nasim Ahmed

Lecturer in Data Structures

Institute of Natural and Mathematical Sciences

Senior Member, IEEE 

Member, IET 

Chartered Engineer (CEng), Reg.ID: 639328, Engineering Council  London, UK

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Professional

Contact details

  • Ph: DD: +64-(0)92136198 Ext: 43198
    Location: 3.23, Institute of Mathematics and Natural Sciences (INMS)
    Campus: Auckland

Qualifications

  • Computer Science (2003)
  • Computer Engineering (2009)
  • Communication Engineering (2012)

Research Expertise

Research Interests

 Internet of Things (IoT), Network Security, Communication Engineering  (OCDMA, WDMA, FSO and VLC),

Thematics

Design – for Commerce, Community and Culture

Area of Expertise

Field of research codes
Information And Computing Sciences (080000): Information and Computing Sciences not elsewhere classified (089999):
Optical Physics (020500):
Other Information and Computing Sciences (089900):
Photonics, Optoelectronics and Optical Communications (020504): Physical Sciences (020000)

Keywords

Photonics, Optoelectronics and Optical Communications (020504), Computer System Security (080303), Networking and Communications (080503), Other Information and Computing Sciences (089999)

Research Outputs

Journal

Ali, S., Ahmed, N., Alwee, S., Islam, M., Rana, S., & Bhuiyan, T. (2017). Effects of Triangular Core Rotation of a Hybrid Porous Core Terahertz Waveguide. International Journal of Electronics and Telecommunications. 63(1), 25-31
[Journal article]Authored by: Ahmed, N.
Ali, S., Ahmed, N., Islam, M., Aljunid, S., & Ahmad, B. (2017). Low loss dispersion flattened hybrid porous core photonic crystal fiber for terahertz wave guiding. Advanced Science Letters. 23(5), 3833-3837
[Journal article]Authored by: Ahmed, N.
Ahmed, N., & Rashid, MA. (2017). Effects of modulation techniques RZ, NRZ, and CSRZ on the operation of hybrid OCDMA/WDM system for gigabit passive optical networks. International Journal of Microwave and Optical Technology. 12(4), 302-309
[Journal article]Authored by: Ahmed, N., Rashid, M.
Ahmed, N., & Rashid, MA. (2017). Effects of modulation techniques RZ, NRZ, and CSRZ on the operation of hybrid OCDMA/WDM system for gigabit passive optical networks. International Journal of Microwave and Optical Technology. 12(4), 299-306 Retrieved from http://www.ijmot.com/VOL12NO4.ASPX
[Journal article]Authored by: Ahmed, N., Rashid, M.
Ali, S., Ahmed, N., Aljunid, S., & Ahmad, B. (2016). Ultra-flat low material loss porous core THz waveguide with near zero flat dispersion. Electronics Letters. 52(10), 863-865
[Journal article]Authored by: Ahmed, N.
Yusuf, MSU., Hossain, MI., Rahman, MM., Ahmad, M., Ahmed, N., & Rashid, MA. (2016). Probability based fast inter mode decision algorithm for H.264/AVC. Applied Mathematics and Information Sciences. 10(3), 1071-1079
[Journal article]Authored by: Ahmed, N.
Islam, M., Ahmed, N., Aljunid, SA., Ali, S., Sayeed, S., & Sabri, N. (2016). Performance Analysis of DPSK-OCDMA System for Optical Access Network. Journal of Optical Communications. 37(1), 51-54
[Journal article]Authored by: Ahmed, N.
Islam, M., Ahmed, N., Ali, S., Aljunid, SA., Ahmad, RB., & Ali, MS. (2016). Hybrid (OCDMA/WDM) system with dpsk modulation using different detection technique at bit rate 2.5Gbps for optical access network. International Journal of Microwave and Optical Technology. 11(4), 303-309
[Journal article]Authored by: Ahmed, N.
Ali, S., Ahmed, N., Aljunid, S., & Ahmad, B. (2016). Hybrid porous core low loss dispersion flattened fiber for THz propagation. Photonics and Nanostructures - Fundamentals and Applications. 22, 18-23
[Journal article]Authored by: Ahmed, N.
Rana, S., Ali, S., Ahmed, N., Islam, R., & Aljunid, SA. (2016). Ultra-high birefringent and dispersionflattened low loss single-mode terahertz wave guiding. IET Communications. 10(13), 1579-1583
[Journal article]Authored by: Ahmed, N.
Mamun, MAA., Rahman, SAMM., Ahamed, NU., Ahmed, N., Hassnawi, LA., & Yusof, ZBM. (2015). Automatic car parking and controlling system using programmable logic controller (PLC). International Journal of Applied Engineering Research. 10(1), 69-75
[Journal article]Authored by: Ahmed, N.
Ahmed, N., Fadhil, HA., Aljunid, SA., Sharafat Ali, M., & Rahman, M. (2015). Performance analysis of WDM-PON system based on optimized remotely pumped erbium-doped fiber amplifier (EDFA) parameter. Journal of Optical Communications. 36(2), 103-108
[Journal article]Authored by: Ahmed, N.
Hmaid, M., Sabri, N., Salim, MS., Badlishah, R., Aljunid, SA., Kamaruddin, R., . . . Ahmed, N. (2015). Designing approach of an intruder realtime ubiquitous embedded surveillance system. Journal of Theoretical and Applied Information Technology. 79(2), 351-357
[Journal article]Authored by: Ahmed, N.
Ahamed, NU., Ahmed, N., Alqahtani, M., Altwijri, O., Badlishah Ahmad, R., & Sundaraj, K. (2015). Investigation of the EMG-time relationship of the biceps Brachii muscle during contractions. Journal of Physical Therapy Science. 27(1), 39-40
[Journal article]Authored by: Ahmed, N.
Mamun, AL., Ahmed, N., Alqahtani, M., Altwijri, O., Rahman, M., Ahamed, NU., . . . Sundaraj, K. (2014). A microcontroller-based automatic heart rate counting system from fingertip. Journal of Theoretical and Applied Information Technology. 62(3), 597-604
[Journal article]Authored by: Ahmed, N.
Uddin, MB., Hossain, MZ., Ahmad, M., Ahmed, N., & Rashid, MA. (2014). Effects of caffeinated beverage consumption on electrocardiographic parameters among healthy adults. Modern Applied Science. 8(2), 69-76
[Journal article]Authored by: Ahmed, N.
Abdullah-Al-Mamun, ., Ahmed, N., Ahamed, NU., Matiur Rahman, SAM., Ahmad, B., & Sundaraj, K. (2014). Use of wireless sensor and microcontroller to develop water-level monitoring system. Indian Journal of Science and Technology. 7(9), 1321-1326
[Journal article]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Ahmad, RB., Ahamed, NU., & Rahman, M. (2014). Performance analysis of hybrid OCDMA/WDM system for metro area network. Journal of Optical Communications. 35(1), 39-43
[Journal article]Authored by: Ahmed, N.
Islam, MA., Ahmed, N., Ahamed, NU., Rahman, M., & Aljunid, SA. (2014). PAPR reduction in an OFDM system using recursive clipping and filtering technique. WSEAS Transactions on Communications. 13, 291-297
[Journal article]Authored by: Ahmed, N.
Habib, MS., Rana, MS., Moniruzzaman, M., Ali, MS., & Ahmed, N. (2014). Highly birefringent broadband-dispersion-compensating photonic crystal fibre over the e + S + C + L + U wavelength bands. Optical Fiber Technology. 20(5), 527-532
[Journal article]Authored by: Ahmed, N.
Ahmed, N., Ali, MS., Ahmed, SA., Ahmad, RB., Ahamed, NU., & Rahman, M. (2014). Analysis EDFA gain in OCDMA system for Fiber-to-the-Home network. International Journal of Microwave and Optical Technology. 9(3), 244-248
[Journal article]Authored by: Ahmed, N.
Fadhil, HA., Amphawan, A., Shamsuddin, HAB., Hussein Abd, T., Al-Khafaji, HMR., Aljunid, SA., . . . Ahmed, N. (2013). Optimization of free space optics parameters: An optimum solution for bad weather conditions. Optik. 124(19), 3969-3973
[Journal article]Authored by: Ahmed, N.
Al Mamun, MA., Sundaraj, K., Ahmed, N., Rahman, M., Rahman, M., & Ahamed, NU. (2013). Design and development of a PC-based automated data logging system for measuring temperature. ARPN Journal of Engineering and Applied Sciences. 8(11), 960-968
[Journal article]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Fadil, A., Ahmad, RB., & Rashid, MA. (2013). Performance enhancement of OCDMA system using NAND detection with modified double weight (MDW) code for optical access network. Optik. 124(13), 1402-1407
[Journal article]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Ahmad, RB., & Fadhil, HA. (2013). Improvement of the bit error rate of a non-coherent OCDMA system for FTTH network applications. Optical and Quantum Electronics. 45(12), 1307-1318
[Journal article]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Ahmad, RB., Fadhil, HA., & Rashid, MA. (2012). Performance improvement of spectral amplitude coding-optical code division multiple access systems using NAND detection with enhanced double weight code. Optical Review. 19(1), 1-6
[Journal article]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Ahmad, RB., & Rashid, MA. (2012). Novel OCDMA detection technique based on modified double weight code for optical access network. Elektronika ir Elektrotechnika. 18(8), 117-121
[Journal article]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Ahmad, RB., Fadil, HA., & Rashid, MA. (2011). Transmission of 2.5 Gbit/s spectrum-sliced WDM system for 50 km single-mode fiber. Journal of Optical Communications. 32(2), 137-140
[Journal article]Authored by: Ahmed, N.

Conference

Islam, M., Ahmed, N., Ali, S., Aljunid, SA., Ahmed, BB., & Sayeed, S.Design new hybrid system using differential phase shift keying (DPSK) modulation technique for optical access network. 2016 3rd International Conference on Electronic Design, ICED 2016. (pp. 395 - 399).
[Conference]Authored by: Ahmed, N.
Ali, S., Ahmed, N., Islam, M., Aljunid, SA., Ahmed, BB., Hussain, S., . . . Rahman, E.A high birefringent PCF with RDS matched dispersion compensation over S+C+L communication bands. 2016 3rd International Conference on Electronic Design, ICED 2016. (pp. 136 - 140).
[Conference]Authored by: Ahmed, N.
Islam, M., Ahmed, N., Ali, S., Aljunid, SA., & Ahmed, BB.Comparison study of hybrid system based on DPSK modulation for all optical access networks. 2016 3rd International Conference on Electronic Design, ICED 2016. (pp. 180 - 184).
[Conference]Authored by: Ahmed, N.
Ali, S., Sarkar, T., Day, A., Hasan, R., Mou, JR., Rana, S., . . . Ahmed, N.Ultra-low loss THz waveguide with Flat EML and near zero flat dispersion properties. Proceedings of 9th International Conference on Electrical and Computer Engineering, ICECE 2016. (pp. 114 - 117).
[Conference]Authored by: Ahmed, N.
Ahmed, N., Rashid, MA., & Islam, M. (2017). OCDMA/WDM system with DPSK modulation at 2.5Gbps for GPON application. Proceedings of the 2017 2nd Workshop on Recent Trends in Telecommunications Research, RTTR 2017.
[Conference Paper in Published Proceedings]Authored by: Ahmed, N., Rashid, M.
Ahmed, N., Rashid, MA., & Islam, M.Hybrid OCDMA Over WDM system with DPSK modulation using direct and complementary subtraction detection techniques. 26th International Telecommunication Networks and Applications Conference, ITNAC 2016. (pp. 212 - 216).
[Conference]Authored by: Ahmed, N., Rashid, M.
Ali, S., Ahmed, N., Islam, M., Aljunid, S., & Ahmad, B.Dispersion flattened low loss hybrid octa-circular porous core fiber for THz wave guiding. AIP Conference Proceedings. 0094-243X.
[Conference]Authored by: Ahmed, N.
Islam, M., Ahmed, N., Ali, S., Aljunid, S., Ahmad, B., & Ahmad, NB.Hybrid (OCDMA/WDM) system using EDFA for optical access networks. AIP Conference Proceedings. 0094-243X.
[Conference]Authored by: Ahmed, N.
Islam, M., Ahmed, N., Ali, S., Nordin, JM., & Sahayadhas, A.Detection performance of OCDMA over WDM system for all optical access network. International Conference on Communication and Signal Processing, ICCSP 2016. (pp. 215 - 219).
[Conference]Authored by: Ahmed, N.
Rahman, SAMM., Al Mamun, MA., Ahamed, NU., Ahmed, N., Ali, MS., & Islam, MM.Design of automatic controlling system for tap-water using floatless level sensor. 2014 IEEE International Symposium on Robotics and Manufacturing Automation, IEEE-ROMA2014. (pp. 18 - 21).
[Conference]Authored by: Ahmed, N.
Ahamed, NU., Altwijri, O., Rahaman, SAMM., Ahmed, N., Alqahtani, M., & Sundaraj, K.Relation between EMG signal activation and time lags using feature analysis during dynamic contraction. ICAICTA 2015 - 2015 International Conference on Advanced Informatics: Concepts, Theory and Applications.
[Conference]Authored by: Ahmed, N.
Lymberopoulos, D., Liu, J., Yang, X., Choudhury, RR., Handziski, V., Sen, S., . . . Hevesi, P.A realistic evaluation and comparison of indoor location technologies: Experiences and lessons learned. IPSN 2015 - Proceedings of the 14th International Symposium on Information Processing in Sensor Networks (Part of CPS Week). (pp. 178 - 189).
[Conference]Authored by: Ahmed, N.
Ghose, A., Chakravarty, K., Agrawal, AK., & Ahmed, N.Poster abstract: Unobtrusive indoor surveillance of patients at home using multiple kinect sensors. SenSys 2013 - Proceedings of the 11th ACM Conference on Embedded Networked Sensor Systems.
[Conference]Authored by: Ahmed, N.
Begum, MN., Bari, MF., Abdullah, SSBC., Ahmad, KR., & Ahmed, N.Preparation and characterization of silica aerogel immobilized with cyanex 301 for extraction of Zn(II). Advanced Materials Research. (pp. 108 - 112). 1022-6680.
[Conference]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., & Ahmad, RB.Analysis OCDMA system bit-error-rate using NAND detection at different data rate. Proceedings of SPIE - The International Society for Optical Engineering. 0277-786X.
[Conference]Authored by: Ahmed, N.
Al-Mamun, A., Sundaraj, K., Ahmed, N., Ahamed, NU., Rahman, SAMM., Ahmad, RB., . . . Kabir, MH.Design and development of a low cost solar energy system for the rural area. Proceedings - 2013 IEEE Conference on Systems, Process and Control, ICSPC 2013. (pp. 31 - 35).
[Conference]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Fadil, HA., Ahmad, RB., & Rashid, MA.Hybrid OCDMA over WDM system using modified double weight (MDW) code for optical access network. Advanced Materials Research. (pp. 3878 - 3883). 1022-6680.
[Conference]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Ahmad, RB., Fadil, HA., & Rashid, MA.Investigate spectrum-sliced WDM system for FTTH network. Communications in Computer and Information Science. 181 CCIS (PART 3)(pp. 728 - 734). 1865-0929.
[Conference]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Fadil, A., Ahmad, RB., & Rashid, MA.Hybrid OCDMA/WDM system using complementary detection technique for FTTH access networks. 2011 IEEE Symposium on Industrial Electronics and Applications, ISIEA 2011. (pp. 227 - 230).
[Conference]Authored by: Ahmed, N.
Jaman, MH., Ali, MS., Ahmed, N., Aljunid, SA., Rahman, M., & Ahmad, RB.Large negative dispersion with residual dispersion (Dr) compensation over E+S+C+L+U wavelength bands by using single mode hexagonal Photonic crystal fiber (H-PCF). 2014 2nd International Conference on Electronic Design, ICED 2014. (pp. 192 - 197).
[Conference]Authored by: Ahmed, N.
Aldouri, MY., Aljunid, SA., Anuar, MS., Fadhil, HA., & Ahmed, N.One EDFA loop in 16 channels spectrum slicing WDM for FTTH access network. 2010 International Conference on Photonics, ICP2010.
[Conference]Authored by: Ahmed, N.
Ahmed, N., Aljunid, SA., Ahmad, RB., & Fadil, HA.Demonstration of spectral slicing WDM system using Light Emitting Diode (LEDs) light source. ICCAIE 2010 - 2010 International Conference on Computer Applications and Industrial Electronics. (pp. 148 - 150).
[Conference]Authored by: Ahmed, N.
Ahmed, N., Khalib, ZIA., Ahmad, RB., Sudin, S., & Asi, S.Low-end embedded Linux platform for network security application - Port scanning detector. Proceedings - 2008 International Conference on Advanced Computer Theory and Engineering, ICACTE 2008. (pp. 1085 - 1088).
[Conference]Authored by: Ahmed, N.
Ahmed, N., Khalib, ZIA., Ahmed, RB., Ghossoon, WM., Sudin, S., & Asi, S.Embedded Port Scanner (EPSS) system using linux and single board computer. 2008 International Conference on Electronic Design, ICED 2008.
[Conference]Authored by: Ahmed, N.

Supervision and Teaching

Teaching

Operating Systems (159335), Computer Graphics (159.235), Algorithms and data Structures (159.201), Computer Programming in C and Principal of Computer and Communication Network 


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