Manzur Ashraf

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Guy Notelaers

University of Bergen

Alizi Alias

International Islamic University Malaysia

Volker Patent

The Open University

Neal Ashkanasy

The University of Queensland, Australia

ASKIN KESER

Uludag University

Lily Cushenbery

SUNY: Stony Brook University

Viacheslav Kuleshov

Stockholm University

Mohd Nasir Masroom

Universiti Teknologi Malaysia - UTM

Shukran Abd Rahman

International Islamic University Malaysia

rudolph bauer

Washington Center for Consciousness Studies

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Papers by Manzur Ashraf

Load-regulated CSMA

Mobile Telephone Technology as a Distance Learning Tool

Proceedings of the Seventh International Conference on Enterprise Information Systems, 2005

This paper presents the methodology, results and effectiveness in the development of Mobile telep... more This paper presents the methodology, results and effectiveness in the development of Mobile telephonebased (Short Message Service-based) distance learning. The proposed novel real time interactive distance learning approach is about the application of information technology to education, was setup, delivered and evaluated using a real-life environment. Statistical analysis of the achieved results of the learners confirmed this SMS-mobile based learning being as effective as direct face-to-face learning.

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L.: Channel mac: A novel medium access control paradigm for wireless ad hoc networks

Channel Based Medium Access Control for Ad Hoc Wireless Networks

This work proposed a novel communication protocol for dynamic, distributed wireless networks. Thi... more This work proposed a novel communication protocol for dynamic, distributed wireless networks. This protocol can adapt to users movements as well as the environment changes. A scalable channel prediction scheme is required to implement the practical Channel MAC protocol in practice. We propose a mean-value based channel prediction scheme, which provides prediction with enough accuracy to be used in the Channel MAC protocol. Next, we extend the Channel MAC protocol to support multi-rate communications. We propose a safety margin based technique to provide auto rate adaptation of the multi-rate Channel MAC. The speed, fairness, and resource utilisation in wireless communications are improved by the proposed protocol compared to existing techniques.

Negotiation Life cycle and AI-based negotiation modeling for Interactive marketing system

Negotiation is a process of cooperative decision-making between parties concerning the resolution... more Negotiation is a process of cooperative decision-making between parties concerning the resolution of a common dispute. The goal of negotiation is to develop a settlement that is acceptable to both parties.[1] In e-commerce application, the interaction between producer and consumer is common and is known as interactive (on-line) marketing system.[2].In this paper we focus on modeling the negotiation life cycle[1] of the interactive marketing system. We further propose an AI-based negotiation technique in interactive marketing system.

Analytical Throughput for the Channel MAC Paradigm

Lecture Notes in Computer Science

Page 1. Analytical Throughput for the Channel MAC Paradigm Manzur Ashraf, Aruna Jayasuriya, and S... more

Improved Opportunistic Auto Rate protocols for wireless networks

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008

Improved Opportunistic Auto Rate Protocols for Wireless Networks Manzur Ashraf and Arona Jayasuri... more

Cyclic knowledge management system in e-governance

Proceedings of the 2005 ACM SIGMIS CPR conference on Computer personnel research - CPR '05, 2005

Governance involves Knowledge Management (KM). Knowledge management is the management of informat... more Governance involves Knowledge Management (KM). Knowledge management is the management of information, skill, experience, innovation, and intelligence. Our model of E-Governance based on Knowledge Management System (KMS) is built on KM cycle of Knowledge capturing, Knowledge sharing, Knowledge enhancing, and Knowledge preserving. A few popular models of E-Governance use a concept of "knowledge centers" to share knowledge. Our model shares knowledge that supports the law of knowledge dynamics. The development model of E-Governance based on Information Management System (IMS) applies a cyclebased process such as spiral or iterative process. This paper studies a development model of KMS-based E-Governance, which is path-based. This model provides an environment where the system grows with the people. To simulate the proposed KMS model, we analyzed a scenario based on the poll on Referendum question of Quebec, CA regarding independence (unilateral action or negotiation) using Artificial Neural Network.

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A Conceptual Framework for a SIM-based Electronic Transaction Authentication System

2007 IFIP International Conference on Network and Parallel Computing Workshops (NPC 2007), 2007

This paper presents a SIM-based tool for user authen-tication in various service areas such as fi... more

Performance analysis of channel MAC paradigm in distributed wireless networks

2007 Australasian Telecommunication Networks and Applications Conference, 2007

... in Distributed Wireless Networks Manzur Ashraf, Aruna Jayasuriya, Sylvie Perreau Institute fo... more

Modeling and verification of Extensible Authentication Protocol for Transport layer Security in Wireless LAN environment

2010 2nd International Conference on Software Technology and Engineering, 2010

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Distributed opportunistic communication protocol for wireless multihop networks

International Journal of Mobile Network Design and Innovation, 2009

Despite significant research effort, the performance of distributed medium access control methods... more Despite significant research effort, the performance of distributed medium access control methods has failed to meet theoretical expectations. Previously, we have proposed the concept for a fully-distributed, but non-optimum opportunistic medium access control called Channel MAC. In this paper, we present the Channel MAC protocol operations addressing the issues of information exchange between nodes, predicting transmission intervals and selecting transmission thresholds to achieve fairness. Although the proposed prediction scheme based on mean channel fading is simple to implement, it is imperfect leading to some performance losses. Event based simulation tool NS2 is used to analyse the performance of Channel MAC in a number of network scenarios. We analyse the performance of the proposed protocol using the performance metric; throughput, fairness and delay. The simulation results show throughput performance improvement of up to 30% with Channel MAC over IEEE 802.11 in certain multihop scenarios. Generally, the proposed protocol outperforms 802.11 in all analysed network scenarios. We also show that the severe resource starvation problem (unfairness) of IEEE 802.11 in some network scenarios is reduced by the Channel MAC mechanism.

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Channel MAC Protocol for Opportunistic Communication in Ad Hoc Wireless Networks

EURASIP Journal on Advances in Signal Processing, 2008

Despite significant research effort, the performance of distributed medium access control methods... more Despite significant research effort, the performance of distributed medium access control methods has failed to meet theoretical expectations. This paper proposes a protocol named "Channel MAC" performing a fully distributed medium access control based on opportunistic communication principles. In this protocol, nodes access the channel when the channel quality increases beyond a threshold, while neighbouring nodes are deemed to be silent. Once a node starts transmitting, it will keep transmitting until the channel becomes "bad." We derive an analytical throughput limit for Channel MAC in a shared multiple access environment. Furthermore, three performance metrics of Channel MAC-throughput, fairness, and delay-are analysed in single hop and multihop scenarios using NS2 simulations. The simulation results show throughput performance improvement of up to 130% with Channel MAC over IEEE 802.11. We also show that the severe resource starvation problem (unfairness) of IEEE 802.11 in some network scenarios is reduced by the Channel MAC mechanism.

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Channel MAC: A novel medium access control paradigm for wireless ad hoc networks

... Institute for Telecommunications Research, University of South Australia, SA 5095, Australia,... more

A SIM-based electronic transaction authentication system

1Institute for Telecommunications Research. E-mail: [email protected] 2School ... more

Toward the Mobile Internet In a Geographic Setting: Context, Usability, Survey, Strategic Community-Based Steps, Social Process Models and Related …

Citeseer

Page 1. 1 Toward the Mobile Internet in a Geographic Setting: Context, Usability, Survey, Strateg... more

Rate Adaptive Channel MAC

Lecture Notes in Computer Science, 2008

Page 1. Rate Adaptive Channel MAC Manzur Ashraf and Aruna Jayasuriya Institute for Telecommunicat... more

Load-regulated CSMA

Mobile Telephone Technology as a Distance Learning Tool

Proceedings of the Seventh International Conference on Enterprise Information Systems, 2005

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L.: Channel mac: A novel medium access control paradigm for wireless ad hoc networks

Channel Based Medium Access Control for Ad Hoc Wireless Networks

Negotiation Life cycle and AI-based negotiation modeling for Interactive marketing system

Analytical Throughput for the Channel MAC Paradigm

Lecture Notes in Computer Science

Page 1. Analytical Throughput for the Channel MAC Paradigm Manzur Ashraf, Aruna Jayasuriya, and S... more

Improved Opportunistic Auto Rate protocols for wireless networks

2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008

Improved Opportunistic Auto Rate Protocols for Wireless Networks Manzur Ashraf and Arona Jayasuri... more

Cyclic knowledge management system in e-governance

Proceedings of the 2005 ACM SIGMIS CPR conference on Computer personnel research - CPR '05, 2005

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A Conceptual Framework for a SIM-based Electronic Transaction Authentication System

2007 IFIP International Conference on Network and Parallel Computing Workshops (NPC 2007), 2007

This paper presents a SIM-based tool for user authen-tication in various service areas such as fi... more

Performance analysis of channel MAC paradigm in distributed wireless networks

2007 Australasian Telecommunication Networks and Applications Conference, 2007

... in Distributed Wireless Networks Manzur Ashraf, Aruna Jayasuriya, Sylvie Perreau Institute fo... more

Modeling and verification of Extensible Authentication Protocol for Transport layer Security in Wireless LAN environment

2010 2nd International Conference on Software Technology and Engineering, 2010

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Distributed opportunistic communication protocol for wireless multihop networks

International Journal of Mobile Network Design and Innovation, 2009

Download

Channel MAC Protocol for Opportunistic Communication in Ad Hoc Wireless Networks

EURASIP Journal on Advances in Signal Processing, 2008

Despite significant research effort, the performance of distributed medium access control methods... more Despite significant research effort, the performance of distributed medium access control methods has failed to meet theoretical expectations. This paper proposes a protocol named "Channel MAC" performing a fully distributed medium access control based on opportunistic communication principles. In this protocol, nodes access the channel when the channel quality increases beyond a threshold, while neighbouring nodes are deemed to be silent. Once a node starts transmitting, it will keep transmitting until the channel becomes "bad." We derive an analytical throughput limit for Channel MAC in a shared multiple access environment. Furthermore, three performance metrics of Channel MAC-throughput, fairness, and delay-are analysed in single hop and multihop scenarios using NS2 simulations. The simulation results show throughput performance improvement of up to 130% with Channel MAC over IEEE 802.11. We also show that the severe resource starvation problem (unfairness) of IEEE 802.11 in some network scenarios is reduced by the Channel MAC mechanism.

Download

Channel MAC: A novel medium access control paradigm for wireless ad hoc networks

... Institute for Telecommunications Research, University of South Australia, SA 5095, Australia,... more

A SIM-based electronic transaction authentication system

1Institute for Telecommunications Research. E-mail: [email protected] 2School ... more

Toward the Mobile Internet In a Geographic Setting: Context, Usability, Survey, Strategic Community-Based Steps, Social Process Models and Related …

Citeseer

Page 1. 1 Toward the Mobile Internet in a Geographic Setting: Context, Usability, Survey, Strateg... more

Rate Adaptive Channel MAC

Lecture Notes in Computer Science, 2008

Page 1. Rate Adaptive Channel MAC Manzur Ashraf and Aruna Jayasuriya Institute for Telecommunicat... more

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