Waqar Mahmood | University of Engineering and Technology Lahore (original) (raw)

Papers by Waqar Mahmood

Proceedings of the 10th WSEAS …, 2006

Abstract: - Two types of control architectures for control plane of optical burst switching netwo... more Abstract: - Two types of control architectures for control plane of optical burst switching networks have been defined in literature; first one is distributed with link-based reservation and second one centralized with end-to-end reservation. In this paper we propose a new hybrid ...

Machine Vision Applications in Industrial Inspection V, 1997

ABSTRACT

Proceeding of the 1996 IEEE International Conference on Control Applications IEEE International Conference on Control Applications held together with IEEE International Symposium on Intelligent Control IEEE International Symposium on Computer-Aided Contro, 1996

... control functions; usually, the expertise resides far from the operating plant and can only b... more ... control functions; usually, the expertise resides far from the operating plant and can only be utilized for fine-tuning and optimizing ... 2] D. Goldberg, Genetic ... performance for large disturbances in F1 with external fuzzy setpoint changes and an active inner loop: (a) PID controller, (b ...

Journal of Fusion Energy, 2011

Abstract An investigation on the HXR emitted from APF plasma focus device operated with different... more Abstract An investigation on the HXR emitted from APF plasma focus device operated with different volu-metric ratios of nitrogen-neon (N2:Ne) admixture working gas at different voltage-pressure limits is presented. The optimum pressures obtained at the applied voltages of 12, and 13 ...

IEE Mobility Conference 2005. The Second International Conference on Mobile Technology, Applications and Systems, 2005

Abstract - TCP developed for wired networks assumes congestion as the reason of packet loss. This... more Abstract - TCP developed for wired networks assumes congestion as the reason of packet loss. This assumption might not be true for infrastructure based wireless networks like CDMA2000 Packet Data Networks due to other reasons of packet loss like higher bit error rate, hard ...

2011 International Conference of Soft Computing and Pattern Recognition (SoCPaR), 2011

... Imran Javed, Waqar Mahmood Al-Khawarizmi Institute of Computer Science, University of Enginee... more ... Imran Javed, Waqar Mahmood Al-Khawarizmi Institute of Computer Science, University of Engineering and Technology, Lahore, Pakistan (email: imran.javed@kics.edu.pk, drwaqar@kics.edu.pk) ... [14].J. Kassab and S. Nagaraj, “Adaptive Modulation in OFDM ...

2011 7th International Conference on Emerging Technologies, 2011

Abstract Thread level speculation (TLS) is an emerging parallel computing paradigm to enable para... more Abstract Thread level speculation (TLS) is an emerging parallel computing paradigm to enable parallelization with minimal programmer interaction on state-of-the-art multi-core systems. However, when applied indiscriminately, thread squashing and re-execution can ...

2012 IEEE International Symposium on Industrial Electronics, 2012

Accurate load forecasting is essential for energy planning and load management. This paper presen... more Accurate load forecasting is essential for energy planning and load management. This paper presents long term industrial load forecasting (LTLF) using Nonlinear Autoregressive Exogenous model (NARX) based Feed-Forward Neural Network (FFNN) method, Support Vector Regression (SVR) and Neural Network models. It is applied to data sets obtained from National Transmission and Dispatch Company (NTDC) of Pakistan, ranging from 1970 to

2011 Fifth FTRA International Conference on Multimedia and Ubiquitous Engineering, 2011

Pakistan currently does not possesses any state of the art centralized command and control system... more Pakistan currently does not possesses any state of the art centralized command and control system which can dispense assistance to its citizen in times of emergencies with optimum efficiency. In addition, there is a lack of collaboration among participating organization due bureaucracy and technological limitation. The government as well as the law enforcement agencies realizes that there is a fundamental

2011 IEEE 14th International Multitopic Conference, 2011

With the increasing demand for personalized applications, user interests' mining is g... more With the increasing demand for personalized applications, user interests' mining is gaining more and more importance. Various sources of information have been used for extracting and modeling parameters that portray users' interests. Social media has become one of the most popular and significant platform for information sharing and dissemination. These social platforms provide users not only a medium to share

2008 IEEE International Multitopic Conference, 2008

Software maintainability has always been a significant factor in the success or failure of any so... more Software maintainability has always been a significant factor in the success or failure of any software product. There are numerous ways to calculate software maintainability but none of them has been able to grab as much industrial acceptance as the maintainability index (MI). MI can be calculated with the help of various tools, however selection of an appropriate tool for

2007 Australasian Telecommunication Networks and Applications Conference, 2007

This paper presents the comparative results of legacy TCP protocol with TCP Detection and Recover... more This paper presents the comparative results of legacy TCP protocol with TCP Detection and Recovery (TCP-DR) over Infrastructure based Wireless Networks. The newly proposed architecture of TCP-DR minimizes the losses due to channel errors and short disconnections. It enhances the TCP Reno functionality by modifying modules at the base station, which mitigates the bandwidth under utilization problem over infrastructure-based wireless network communication. The simulation results illustrate that performance can be improved up to 43% in the presence of high channel errors and short disconnections.

2005 1st IEEE and IFIP International Conference in Central Asia on Internet, 2005

Abstract - Generalized Multi-Protocol Label Switching (GMPLS) which is also referred as Multiprot... more Abstract - Generalized Multi-Protocol Label Switching (GMPLS) which is also referred as Multiprotocol Lambda Switching, supports devices that not only perform packet switching but also the devices that perform switching in domains of time, wavelength and space. This document ...

2005 Student Conference on Engineering Sciences and Technology, 2005

Mobile ad-hoc networks (MANETs) are temporary wireless networks useful in emergency rescue servic... more Mobile ad-hoc networks (MANETs) are temporary wireless networks useful in emergency rescue services, battlefields operations, mobile conferencing and a variety of other useful applications. Due to dynamic nature and lack of centralized monitoring points, these ...

2009 IEEE 34th Conference on Local Computer Networks, 2009

... Discovery Mechanism in Wireless Sensor Networks Muhammad Raza, Ali Akbar, Waqar Mahmood Alkha... more ... Discovery Mechanism in Wireless Sensor Networks Muhammad Raza, Ali Akbar, Waqar Mahmood Alkhawarizmi Institute of Computer Science University of Engineering and Technology Lahore, Pakistan Muhammad.asif@kics.edu.pk ...

2008 IEEE International Multitopic Conference, 2008

Abstract -One of the most critical limiting factor for a Wireless Sensor Network (WSN) is its bat... more Abstract -One of the most critical limiting factor for a Wireless Sensor Network (WSN) is its battery life. Therefore, a very desirable feature of WSN would be its rechargability to remain operational over longer period of times. However, the nodes needing recharge may not be ...

Optik - International Journal for Light and Electron Optics, 2003

ABSTRACT An algorithm on PMD pulse-width compression is proposed. The new algorithm is more effic... more ABSTRACT An algorithm on PMD pulse-width compression is proposed. The new algorithm is more efficient than some recent result and is guaranteed to be globally convergent. Also all iteration points are feasible Jones vectors. These properties are important since in many situations, PMD control needs to be implemented in real time.

Journal of Lightwave Technology, 2000

Optical burst switching realizes all-optical communication by dividing data transmission system i... more Optical burst switching realizes all-optical communication by dividing data transmission system into control plane and data plane. In order to implement control plane two controlling mechanisms such as distributed and centralized control and reservation models have been presented in literature. Both of the architectures have pros and cons associated such as distributed model lacks efficient resource utilization while centralized model is nonscalable. In order to overcome these, a new hybrid control and reservation mechanism has been presented by the authors. The proposed model is based on clustering technique where each cluster consists of cluster head and member nodes. Cluster head performs major functionalities in the network such as path establishment, routing and resource management, fault management, etc., while member nodes perform data switching functionality. In order to implement the architecture, a signaling protocol is also presented. In this paper, we discuss different scenarios required for the implementation of the proposed hybrid model. These scenarios detail the message dialogs exchange between different network nodes and between different software modules during lightpath establishment, data transmission, and connection teardown operations. The goal of efficient resource utilization is achieved through centralized control of network resources while scalability is achieved through dividing the network into multiple domains. Finally, the simulation section shows the mechanism of designing the multidomain architecture, network bandwidth utilization comparison and reduction in end-to-end data transmission latency.

IEICE Electronics Express, 2005

A novel test methodology is established to evaluate the strain relief boot on optoelectronic comp... more A novel test methodology is established to evaluate the strain relief boot on optoelectronic components and optical fiber components by measuring the fiber bend radius in side pull test. The technique is developed for qualifying the boot design rather than for lot testing. The criterion and process are provided.

IEICE Electronics Express, 2004

Stimulated Raman scattering (SRS) degrades the performance of wavelength-division-multiplexed (WD... more Stimulated Raman scattering (SRS) degrades the performance of wavelength-division-multiplexed (WDM) optical fiber communication systems by amplifying the longer-wavelength channels at the expense of shorter-wavelength channels, and making the spectral profile of transmission tilted. The spectral transmission tilt due to SRS of single-mode fiber span is measured by using a technique to separate it from the total loss profile of the fiber. An empirical model is developed to predict the transmission tilt for single-mode fiber of any fiber length under various optical power levels. The application of the model in test and evaluation of gain-flattened optical fiber amplifiers is introduced.

Proceedings of the 10th WSEAS …, 2006

Abstract: - Two types of control architectures for control plane of optical burst switching netwo... more Abstract: - Two types of control architectures for control plane of optical burst switching networks have been defined in literature; first one is distributed with link-based reservation and second one centralized with end-to-end reservation. In this paper we propose a new hybrid ...

Machine Vision Applications in Industrial Inspection V, 1997

ABSTRACT

Proceeding of the 1996 IEEE International Conference on Control Applications IEEE International Conference on Control Applications held together with IEEE International Symposium on Intelligent Control IEEE International Symposium on Computer-Aided Contro, 1996

... control functions; usually, the expertise resides far from the operating plant and can only b... more ... control functions; usually, the expertise resides far from the operating plant and can only be utilized for fine-tuning and optimizing ... 2] D. Goldberg, Genetic ... performance for large disturbances in F1 with external fuzzy setpoint changes and an active inner loop: (a) PID controller, (b ...

Journal of Fusion Energy, 2011

Abstract An investigation on the HXR emitted from APF plasma focus device operated with different... more Abstract An investigation on the HXR emitted from APF plasma focus device operated with different volu-metric ratios of nitrogen-neon (N2:Ne) admixture working gas at different voltage-pressure limits is presented. The optimum pressures obtained at the applied voltages of 12, and 13 ...

IEE Mobility Conference 2005. The Second International Conference on Mobile Technology, Applications and Systems, 2005

Abstract - TCP developed for wired networks assumes congestion as the reason of packet loss. This... more Abstract - TCP developed for wired networks assumes congestion as the reason of packet loss. This assumption might not be true for infrastructure based wireless networks like CDMA2000 Packet Data Networks due to other reasons of packet loss like higher bit error rate, hard ...

2011 International Conference of Soft Computing and Pattern Recognition (SoCPaR), 2011

... Imran Javed, Waqar Mahmood Al-Khawarizmi Institute of Computer Science, University of Enginee... more ... Imran Javed, Waqar Mahmood Al-Khawarizmi Institute of Computer Science, University of Engineering and Technology, Lahore, Pakistan (email: imran.javed@kics.edu.pk, drwaqar@kics.edu.pk) ... [14].J. Kassab and S. Nagaraj, “Adaptive Modulation in OFDM ...

2011 7th International Conference on Emerging Technologies, 2011

Abstract Thread level speculation (TLS) is an emerging parallel computing paradigm to enable para... more Abstract Thread level speculation (TLS) is an emerging parallel computing paradigm to enable parallelization with minimal programmer interaction on state-of-the-art multi-core systems. However, when applied indiscriminately, thread squashing and re-execution can ...

2012 IEEE International Symposium on Industrial Electronics, 2012

Accurate load forecasting is essential for energy planning and load management. This paper presen... more Accurate load forecasting is essential for energy planning and load management. This paper presents long term industrial load forecasting (LTLF) using Nonlinear Autoregressive Exogenous model (NARX) based Feed-Forward Neural Network (FFNN) method, Support Vector Regression (SVR) and Neural Network models. It is applied to data sets obtained from National Transmission and Dispatch Company (NTDC) of Pakistan, ranging from 1970 to

2011 Fifth FTRA International Conference on Multimedia and Ubiquitous Engineering, 2011

Pakistan currently does not possesses any state of the art centralized command and control system... more Pakistan currently does not possesses any state of the art centralized command and control system which can dispense assistance to its citizen in times of emergencies with optimum efficiency. In addition, there is a lack of collaboration among participating organization due bureaucracy and technological limitation. The government as well as the law enforcement agencies realizes that there is a fundamental

2011 IEEE 14th International Multitopic Conference, 2011

With the increasing demand for personalized applications, user interests' mining is g... more With the increasing demand for personalized applications, user interests' mining is gaining more and more importance. Various sources of information have been used for extracting and modeling parameters that portray users' interests. Social media has become one of the most popular and significant platform for information sharing and dissemination. These social platforms provide users not only a medium to share

2008 IEEE International Multitopic Conference, 2008

Software maintainability has always been a significant factor in the success or failure of any so... more Software maintainability has always been a significant factor in the success or failure of any software product. There are numerous ways to calculate software maintainability but none of them has been able to grab as much industrial acceptance as the maintainability index (MI). MI can be calculated with the help of various tools, however selection of an appropriate tool for

2007 Australasian Telecommunication Networks and Applications Conference, 2007

This paper presents the comparative results of legacy TCP protocol with TCP Detection and Recover... more This paper presents the comparative results of legacy TCP protocol with TCP Detection and Recovery (TCP-DR) over Infrastructure based Wireless Networks. The newly proposed architecture of TCP-DR minimizes the losses due to channel errors and short disconnections. It enhances the TCP Reno functionality by modifying modules at the base station, which mitigates the bandwidth under utilization problem over infrastructure-based wireless network communication. The simulation results illustrate that performance can be improved up to 43% in the presence of high channel errors and short disconnections.

2005 1st IEEE and IFIP International Conference in Central Asia on Internet, 2005

Abstract - Generalized Multi-Protocol Label Switching (GMPLS) which is also referred as Multiprot... more Abstract - Generalized Multi-Protocol Label Switching (GMPLS) which is also referred as Multiprotocol Lambda Switching, supports devices that not only perform packet switching but also the devices that perform switching in domains of time, wavelength and space. This document ...

2005 Student Conference on Engineering Sciences and Technology, 2005

Mobile ad-hoc networks (MANETs) are temporary wireless networks useful in emergency rescue servic... more Mobile ad-hoc networks (MANETs) are temporary wireless networks useful in emergency rescue services, battlefields operations, mobile conferencing and a variety of other useful applications. Due to dynamic nature and lack of centralized monitoring points, these ...

2009 IEEE 34th Conference on Local Computer Networks, 2009

... Discovery Mechanism in Wireless Sensor Networks Muhammad Raza, Ali Akbar, Waqar Mahmood Alkha... more ... Discovery Mechanism in Wireless Sensor Networks Muhammad Raza, Ali Akbar, Waqar Mahmood Alkhawarizmi Institute of Computer Science University of Engineering and Technology Lahore, Pakistan Muhammad.asif@kics.edu.pk ...

2008 IEEE International Multitopic Conference, 2008

Abstract -One of the most critical limiting factor for a Wireless Sensor Network (WSN) is its bat... more Abstract -One of the most critical limiting factor for a Wireless Sensor Network (WSN) is its battery life. Therefore, a very desirable feature of WSN would be its rechargability to remain operational over longer period of times. However, the nodes needing recharge may not be ...

Optik - International Journal for Light and Electron Optics, 2003

ABSTRACT An algorithm on PMD pulse-width compression is proposed. The new algorithm is more effic... more ABSTRACT An algorithm on PMD pulse-width compression is proposed. The new algorithm is more efficient than some recent result and is guaranteed to be globally convergent. Also all iteration points are feasible Jones vectors. These properties are important since in many situations, PMD control needs to be implemented in real time.

Journal of Lightwave Technology, 2000

Optical burst switching realizes all-optical communication by dividing data transmission system i... more Optical burst switching realizes all-optical communication by dividing data transmission system into control plane and data plane. In order to implement control plane two controlling mechanisms such as distributed and centralized control and reservation models have been presented in literature. Both of the architectures have pros and cons associated such as distributed model lacks efficient resource utilization while centralized model is nonscalable. In order to overcome these, a new hybrid control and reservation mechanism has been presented by the authors. The proposed model is based on clustering technique where each cluster consists of cluster head and member nodes. Cluster head performs major functionalities in the network such as path establishment, routing and resource management, fault management, etc., while member nodes perform data switching functionality. In order to implement the architecture, a signaling protocol is also presented. In this paper, we discuss different scenarios required for the implementation of the proposed hybrid model. These scenarios detail the message dialogs exchange between different network nodes and between different software modules during lightpath establishment, data transmission, and connection teardown operations. The goal of efficient resource utilization is achieved through centralized control of network resources while scalability is achieved through dividing the network into multiple domains. Finally, the simulation section shows the mechanism of designing the multidomain architecture, network bandwidth utilization comparison and reduction in end-to-end data transmission latency.

IEICE Electronics Express, 2005

A novel test methodology is established to evaluate the strain relief boot on optoelectronic comp... more A novel test methodology is established to evaluate the strain relief boot on optoelectronic components and optical fiber components by measuring the fiber bend radius in side pull test. The technique is developed for qualifying the boot design rather than for lot testing. The criterion and process are provided.

IEICE Electronics Express, 2004

Stimulated Raman scattering (SRS) degrades the performance of wavelength-division-multiplexed (WD... more Stimulated Raman scattering (SRS) degrades the performance of wavelength-division-multiplexed (WDM) optical fiber communication systems by amplifying the longer-wavelength channels at the expense of shorter-wavelength channels, and making the spectral profile of transmission tilted. The spectral transmission tilt due to SRS of single-mode fiber span is measured by using a technique to separate it from the total loss profile of the fiber. An empirical model is developed to predict the transmission tilt for single-mode fiber of any fiber length under various optical power levels. The application of the model in test and evaluation of gain-flattened optical fiber amplifiers is introduced.