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09.20.2008

I've finished updating my homepage and am reopening. Thanks for visiting !!!

09.11.2008

Finally, I passed my proposal for Ph.D. dissertation. That means, I can graduate in the next semester, spring 2009. Great !!

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This homepage is based on a templeate from 'open source' design (under the Creative Commons Attribution 2.5 Licence).

Analytical Framework for Routing Protocols
in MANETs

Overview

Several analytical models have been proposed for routing protocols in MANETs. While the analytical approaches restrict to address their own concerns, no integrated framework exist that incorporates models about useful performance metrics (e.g., average end-to-end delay) and models that abstract characteristics of the network deployment. In this research, I intend to derive an analytical framework that shows an integrated view for performances of routing protocols in MANETs. The analytical framework expresses the performances in relatively high-level parameters which can be easily acquired by stakeholders (e.g., network deployer).

Publication

  • T. Jun, and C. Julien, "Node Delay Analysis of Routing Protocols in Mobile Ad Hoc Networks," 2008. (Submitted to INFOCOM 2009)
  • S. Bodas, T. Jun, S. Vishwanath, and C. Julien, "An Analytic Framework for Protocol Analysis in Mobile Ad hoc Networks," 2008. (Under Review)
  • T. Jun, A. Dalton, S. Bodas, C. Julien, and S. Vishwanath, "Expressive Analytical Model for Routing Protocols in Mobile Ad Hoc Networks," IEEE International Conference on Communications, May 2008.

Rapid Deployment of Applications in MANETs

Overview

Many protocols exist for supporting routing in mobile ad hoc networks (MANETs). Since each protocol implements its own philosophy and algorithm to target a specific purpose, routing protocols in MANETs show very different characteristics. Selecting a particular protocol for an application or deployment environment involves evaluating many complex inter-dependent tradeoffs and can be an overwhelming task for an application designer. However, this decision can have a significant impact on the success of a system in terms of performance, cost, and responsiveness. Emerging distributed applications deployed in MANETs inherently experience highly dynamic situations, which necessitate real-time routing protocol selection in response to varying scenarios.

Publication

  • T. Jun, and C. Julien, "Automated Routing Protocol Selection in Mobile Ad Hoc Networks," Proceedings of the 2007 ACM Symposium on Applied Computing, pages 906-913, March 2007.

Real-time System

Overview

A real-time system is a system that performs logical operations with time contraints. In other words, a real-time system should not only produce logically correct outputs but also meet the time constraints. Even if the system works correctly in terms of a logical meaning, the system turns out to be failed when it cannot satisfy the time constraints. In this research, I focus on a network scheduling algorithm in MAC layer for a real-time network service. In addition, I investigate the home network system as its application.

Publication

  • D. Kim, T. Jun, W. Kwon, "Home network systems for networked appliances using power-line communication," Industrial Electronics Society, 2004. IECON 2004. 30-th Annual Conference of IEEE, volume 3, pages 2394-2399. nominated for best paper award
  • T. Jun, and W. Kwon, "Scheduling method for periodic transmissions in the timer controlled network," Proceedings of the 14-th Korea Automation & Control Conference, pages a101-a104, October 1999.