| 2014 | PERCOM | Personalized Energy Auditor: Estimating personal electricity usage. | Seungwoo Lee, Daye Ahn, Sukjun Lee, Rhan Ha, Hojung Cha |
| 2008 | PERCOM | A Power Management mechanism for Handheld Systems having a Multimedia Accelerator. | Junho Ahn, Jung-Hi Min, Hojung Cha, Rhan Ha |
| 2002 | TACAS | Validating Timing Constraints of Dependent Jobs with Variable Execution Times in Distributed Real-Time Systems. | Hojung Cha, Rhan Ha |
| 1999 | RTSS | Analysis of the Impacts of Overestimation Sources on the Accuracy of Worst Case Timing Analysis. | Sung-Kwan Kim, Sang Lyul Min, Rhan Ha |
| 1997 | RTSS | Enhanced analysis of cache-related preemption delay in fixed-priority preemptive scheduling. | Chang-Gun Lee, Joosun Hahn, Yang-Min Seo, Sang Lyul Min, Rhan Ha, Seongsoo Hong, Chang Yun Park, Minsuk Lee, Chong-Sang Kim |
| 1996 | RTSS | Analysis of cache-related preemption delay in fixed-priority preemptive scheduling. | Chang-Gun Lee, Joosun Hahn, Sang Lyul Min, Rhan Ha, Seongsoo Hong, Chang Yun Park, Minsuk Lee, Chong-Sang Kim |
| 1996 | RTAS | Efficient worst case timing analysis of data caching. | Sung-Kwan Kim, Sang Lyul Min, Rhan Ha |
| 1994 | ICDCS | Validating Timing Constraints in Multiprocessor and Distributed Real-Time Systems. | Rhan Ha, Jane W.-S. Liu |
| 1993 | RTSS | PERTS: A prototyping environment for real-time systems. | Jane W.-S. Liu, J. L. Redondo, Zhong Deng, Too-Seng Tia, Riccardo Bettati, A. Silberman, Matthew F. Storch, Rhan Ha, Wei-Kuan Shih |