CCNS Seminar: Network Coding Design for Disruption Tolerant N/W by Dr. Chuah Mooi Choo

Dear all,

The center for Communication Systems and Networking will be organizing a talk by Dr. Chuah Mooi Choo, Assoc. Prof, Department of Computer Science and Engineering, Lehigh University. All are invited to attend. Post graduate Supervisors are requested to encourage their students to attend the talk.

Date: 28/05/2009 (Thursday)
Venue: 5th floor meeting room, FES, Setapak
Time: 2:00 PM

ABSTRACT:
Network Coding Design for Disruption Tolerant N/W

Network coding has been proposed to increase throughput and reliability in wired and wireless networks. In this talk, an overview of network coding and disruption tolerant network will first be given. Next, we discuss why existing proposed schemes for wireless mesh networks may not work well in disruption tolerant networks. Then, we will present a context aware network coding scheme that can improve network coding performance when nodes move according to non-homogeneous mobility model. Our simulation studies showed that this scheme can improve the message delivery ratio.

We also discuss some security issues related to network coding enabled wireless systems. We will show the impacts of selective dropping attacks on the delivery performance of network coding enabled wireless systems. Lastly, we present a mitigation scheme that can improve delivery performance during such attacks.

With thanks and regards,

Dr. Morris Ezra,
Asst. Professor,
Faculty of Engineering and Science,
University Tunku Abdul Rahman,
Jalan Genting Klang,
53300 Setapak.
Kuala Lumpur.

CCIS Seminar: Aspect-Oriented Programming: Beyond Objects

Dear all, 

You are cordially invited to the following CCIS Seminar:

Title:   Aspect-Oriented Programming: Beyond Objects
Date:    Friday 22 May 2009
Time:    10.00 - 11.00 am
Venue:   Petaling Jaya campus - Meeting Room, Block PD
        Kampar campaus – Please check with Dr Choo Wou Onn
Speaker: Ms Mariam Nainan

Abstract:
Aspect-oriented programming is a recent programming approach that adds another dimension of modularity and abstraction to existing programming paradigms such as object-oriented programming. This talk presents this new programming approach as well as some research issues to consider.

CCNS Seminar: Massively Multiuser Virtual Environments and Online Games: Networking and System Support by Prof. Shervin Shirmohammadi

Title: Massively Multiuser Virtual Environments and Online Games: Networking and System Support
Speaker: Prof. Shervin Shirmohammadi (his bio and picture can be found at http://www.site.uottawa.ca/~shervin/)
Date: 22/5/2009
Time: 2:30pm - 3:30pm
Venue: UTAR FICT PD206
Audience:
All FICT/FSET/FES staff and students are welcome
Abstract:
A Massively Multiuser Virtual Environment (MMVE) sets out to create an environment for thousands, tens of thousands, or even millions of users to simultaneously interact with each other as in the real world. For example, Massively Multiuser Online Games (MMOGs), now a very profitable sector of the industry and subject to academic and industry research, is a special case of MMVEs where hundreds of thousands of players simultaneously play games with each other. Although originally designed for gaming, MMOGs are now widely used for socializing, business, commerce, scientific experimentation, and many other practical purposes. One could say that MMOGs are the "killer app" that brings MMVE into the realm of eSociety. This is evident from the fact that real companies are opening "virtual branches" in these online games, such as jean manufacturers, IBM, and CNN, to name a few. Virtual currencies such as Linden (or L$) in Second Life are already being exchanged for real-world money. Similarly, virtual goods and virtual real-state are being bought and sold with real-world money. Massive numbers of users spend their time with their fellow players at online games like EverQuest, Half-Life, World of Warcraft, and Second Life. World of Warcraft, for example, has over eleven million users with a peak of over 500,000 players online at a given. There is no doubt that MMOGs and MMVEs have the potential to be the corner stone of any eSociety platform in the near future, because they bring the massiveness, awareness, and inter-personal interaction of the real society into the digital realm.

In this talk, we focus on approaches for supporting the massive number of users in such environments, consisting of scalability methods, zoning techniques, and area of interest management. Focus will be on the networking and system support and architectures, as well as research challenges still remaining to be solved.

Thank you very much.

Regards,
Soung