Devised a novel architecture for NH-PON (NUST Hybrid PON): Dual Ring Hybrid WDM/TDM Passive Optical Access Network with enhanced QoS support. This high tech research and development project will enable designing and implementation of a high speed access network at NUST new Technology Smart Campus at H-12, Islamabad . The project is geared to help develop an advanced networking infrastructure for Pakistani Scientists, engineers, and health care professionals to communicate and collaborate with international partners.
Designed and implemented a software model for fully characterizing the gain and noise characteristics of an Erbium-Doped Fiber Amplifier (EDFA).
Demonstrated through Computer Simulation a wavelength-routed unidirectional inter-office ring network employing fourteen wavelength multiplexed systems with 2-nm spacing. This permits a network containing fifteen central offices with proper assignment of signal wavelengths.
Devised a self-consistent solution for an interoffice ring network consisting of a cascade of 11 EDFAs that closes on itself and amplifies 15 wavelength-multiplexed signals. The accumulated signal-to-noise ratio is sufficient for 10 Gb/s operation at each wavelength, allowing a network capacity of 550 Gb/s for a full mesh traffic pattern.
Sensitivity Enhancement of Coherent Optical Fiber Communication System, Using Analog Frequency Modulation of Optical Carrier by Digitally Modulated Subcarriers: Demonstrated a novel subcarrier modulated coherent optical fiber communication system capable of 11.1 photons/bit reception. A major application of this research would be extension of inter-repeater distance for long-haul fiber-optic communication.
Optoelectronic Interconnect System for Next Generation Supercomputers (Funded by DARPA): Constructed a “hybrid” breadboard circuit to demonstrate functioning of overall interconnect system.
“Measurement and Analysis for the Global Grid and Internet End-to-end Performance” (MAGGIE-NS), a joint project between NUST School of Electrical Engineering and Computer Science (NUST-SEECS), Pakistan and Stanford Linear Accelerator Center (SLAC) with a funding of
US $ 0.162 millions. This project aims at development of tools to measure, test, and report network performance.
European Union Research Funding of about four hundred thousand Euros under the Asia Link on behalf of NUST, Pakistan . The project proposal was prepared in collaboration with two European and two Asian higher educational Institutions. The names of the participating institutions are as follows:
University of West
England , Bristol , UK
University of Sciences & Technology , Pakistan
Sauvé , France
of Technology , China
Dr M H Zaidi is the Co- Investigator from NUST, Pakistan in this project. The goals of the project are: to upgrade the skills of the university teaching staff to develop curricula, produce new/improved courses, modules or teaching / training materials, improving teaching and most importantly research methodologies in order to enhance the overall management of higher education institutions through the sharing of know-how between Asian and European Institutions.
Dr Zaidi has contributed in jointly developing the Research Methods course under this project.
This proposal was submitted on June 28 th , 2005 and tables the development of a state-of-the-art research and development facility for Global Lambda Integrated Facility (GLIF) nodes. The total requested amount for this proposal is approximately $1.2 million over three years and will seek to leverage the existing infrastructures at the participant institutions. Drs. Yasin Raja, UNCC Charlotte USA and Dr. S. M. Hassan Zaidi are Prinicipal Investigators from US and Pakistan sides respectively, and Dr. Nasir Ghani , Ms Gigi Karmous-Edwards, Harvey Newman (CALTECH) from US. The following funds have already been committed by North Carolina Research Triangle (US$ 135000.00) and Tennessee Tech University , USA (US$ 109890.00).
This project is being undertaken in collaboration with Florida Atlantic University , USA . Fuding for US$135000.00 is being pursued.
Dr. Zaidi, Mr. Ali Hammad, Mr. Ajmal Farooq , Mr. Ali Azfer
Project Funded By PITB ( Punjab Information Technology Board) (Rs.0.45M)
- Routing and Wavelength Assignment algorithms in IP over DWDM Networks:
Funding: Rs 50000 (HQ NUST)
- Wavelength Assignment Using Closest Wavelength Tuning:
Funding: Rs 50000 (HQ NUST)
- Dynamic Routing through Spontaneous Resource Reservation:
Funding: Rs 50000 (HQ NUST)
- Mitigating Denial-of-Service Attacks using Dynamic Ingress Filtering Mechanism: Funding Rs 50000 (HQ NUST)
- Mitigating effects of Denial of Service (DoS) Attacks on E-Commerce Sites and Networks: Funding Rs 50000 (HQ NUST)
- TCP SYN Flood Sensor for Internet Backbone: Funding Rs 50000 (HQ NUST)
- Design and Development of High Speed Network at NUST-SEECS
Funded by HQ NUST ( National University of Science and Technology) (Rs.0.9M).
Research Team Members
Dr. M.H. Zaidi Mr. Ali Hammad
Mr. Nadeem Ahmed
Mr. Ajmal Farooq
Mr. Syed Ali Azfer
- Center for Optoelectronics and Optical Communications Research at NUST (CORN)
This is one of the “mega-projects”, for a planned amount of Pak Rs 330 million approximately. This project focuses on establishment of NUST Research Center for Optoelectronics and Optical Communication at NUST/NUST-SEECS and development of highly skilled and experienced human resource in terms of Masters and PhDs in the field of Optoelectronics and Optical Communications. Researchers all around the world are actively involved in development and experimentations for the same purpose. The further establishment of a similar research facility at NUST would enable Pakistani researchers and members of faculty to actively participate in experiments and development of advanced high-speed optical communication technology.
Minimizing the Effect of imprecise network state information through reduced Overhead in the WDM Networks
The objective of research is to reduce imprecise network state information that arises due to factors like "Infrequent state updates due to overhead concerns" and "Link propagation delay". The idea is to devise a wavelength dissemination mechanism based on wavelength bundling or grouping in wavelength selective networks.
- EWLCR: A Novel Routing Algorithm for Sparse and Full Wavelength Conversion WDM Networks
- Comparative Analysis of Different Failure Recovery Schemas in MPLS Networks
- Monitored Responsive Flexibility in Packet Forwarding for Congestion Control
Survivable Ethernet Passive Optical Network (EPON
) based optical access network with triple
Bandwidth Management for hybrid TDM/WDM EPONs
Performance Analysis of Optical Burst
Switching (OBS) Networks
Full-Duplex WDM compatible Radio-over-Fiber
Quantum based Online Scheduler (TQOS)
Partially online dynamic bandwidth allocation
(DBA) algorithm for Hybrid TDM/WDM EPON