Hojung Cha

Seunghun Cha, Elmurod Talipov, Hojung Cha: Data delivery scheme for intermittently connected mobile sensor networks. Computer Communications 36(5): 504-519 (2013)

Sungnam Lee, Yohan Chon, Hojung Cha: Smartphone-based indoor pedestrian tracking using geo-magnetic observations. Mobile Information Systems 9(2): 123-137 (2013)

Kwanghyo Park, Hyojeong Shin, Hojung Cha: Smartphone-based pedestrian tracking in indoor corridor environments. Personal and Ubiquitous Computing 17(2): 359-370 (2013)

Elmurod Talipov, Yohan Chon, Hojung Cha: Content Sharing over Smartphone-Based Delay-Tolerant Networks. IEEE Trans. Mob. Comput. 12(3): 581-595 (2013)

Dongwon Kim, Wonwoo Jung, Hojung Cha: Runtime power estimation of mobile AMOLED displays. DATE 2013: 61-64

Yohan Chon, Yunjong Kim, Hojung Cha: Autonomous place naming system using opportunistic crowdsensing and knowledge from crowdsourcing. IPSN 2013: 19-30

Sukwon Choi, Hayun Hwang, Byunghun Song, Hojung Cha: Hardware-assisted energy monitoring architecture for micro sensor nodes. Journal of Systems Architecture - Embedded Systems Design 58(2): 73-85 (2012)

Yungeun Kim, Songhee Lee, Seokjoon Lee, Hojung Cha: A GPS sensing strategy for accurate and energy-efficient outdoor-to-indoor handover in seamless localization systems. Mobile Information Systems 8(4): 315-332 (2012)

Hyojeong Shin, Elmurod Talipov, Hojung Cha: Spectrum: Lightweight Hybrid Address Autoconfiguration Protocol Based on Virtual Coordinates for 6LoWPAN. IEEE Trans. Mob. Comput. 11(11): 1749-1762 (2012)

Yungeun Kim, Yohan Chon, Hojung Cha: Smartphone-Based Collaborative and Autonomous Radio Fingerprinting. IEEE Transactions on Systems, Man, and Cybernetics, Part C 42(1): 112-122 (2012)

Yohan Chon, Elmurod Talipov, Hojung Cha: Autonomous Management of Everyday Places for a Personalized Location Provider. IEEE Transactions on Systems, Man, and Cybernetics, Part C 42(4): 518-531 (2012)

Hyojeong Shin, Yohan Chon, Hojung Cha: Unsupervised Construction of an Indoor Floor Plan Using a Smartphone. IEEE Transactions on Systems, Man, and Cybernetics, Part C 42(6): 889-898 (2012)

Jahyoung Koo, Hojung Cha: Unsupervised Locating of WiFi Access Points Using Smartphones. IEEE Transactions on Systems, Man, and Cybernetics, Part C 42(6): 1341-1353 (2012)

Wonwoo Jung, Chulkoo Kang, Chanmin Yoon, Dongwon Kim, Hojung Cha: DevScope: a nonintrusive and online power analysis tool for smartphone hardware components. CODES+ISSS 2012: 353-362

Yohan Chon, Nicholas D. Lane, Fan Li, Hojung Cha, Feng Zhao: Automatically characterizing places with opportunistic crowdsensing using smartphones. UbiComp 2012: 481-490

Yungeun Kim, Hyojeong Shin, Hojung Cha: Smartphone-based Wi-Fi pedestrian-tracking system tolerating the RSS variance problem. PerCom 2012: 11-19

Yohan Chon, Hyojeong Shin, Elmurod Talipov, Hojung Cha: Evaluating mobility models for temporal prediction with high-granularity mobility data. PerCom 2012: 206-212

Wonwoo Jung, Dongwon Kim, Hojung Cha: Observing Thermal Characteristics of Energy-Aware Mobile Devices. RTCSA 2012: 465-468

Junho Ahn, Hojung Cha: A sensor network-based multiple acoustic source localization algorithm. SAC 2012: 544-549

Chanmin Yoon, Yohan Chon, Hojung Cha: PION: Human mobility-based service provisioning framework for smartphone users. SECON 2012: 174-181

Choonha Hwang, Elmurod Talipov, Hojung Cha: Distributed geographic service discovery for mobile sensor networks. Computer Networks 55(5): 1069-1082 (2011)

Elmurod Talipov, Hojung Cha: Communication capacity-based message exchange mechanism for delay-tolerant networks. Computer Networks 55(15): 3408-3422 (2011)

Chanmin Yoon, Hojung Cha: Experimental analysis of IEEE 802.15.4a CSS ranging and its implications. Computer Communications 34(11): 1361-1374 (2011)

Jahyoung Koo, Hojung Cha: Localizing WiFi Access Points Using Signal Strength. IEEE Communications Letters 15(2): 187-189 (2011)

John Chon, Hojung Cha: LifeMap: A Smartphone-Based Context Provider for Location-Based Services. IEEE Pervasive Computing 10(2): 58-67 (2011)

Seungwoo Lee, Byounggeun Kim, Hoon Kim, Rhan Ha, Hojung Cha: Inertial Sensor-Based Indoor Pedestrian Localization with Minimum 802.15.4a Configuration. IEEE Trans. Industrial Informatics 7(3): 455-466 (2011)

Elmurod Talipov, Hyojeong Shin, Seungjae Han, Hojung Cha: A lightweight stateful address autoconfiguration for 6LoWPAN. Wireless Networks 17(1): 183-197 (2011)

Hyojeong Shin, Yohan Chon, Kwanghyo Park, Hojung Cha: FindingMiMo: tracing a missing mobile phone using daily observations. MobiSys 2011: 29-42

Jahyoung Koo, Hojung Cha: Autonomous Construction of a WiFi Access Point Map Using Multidimensional Scaling. Pervasive 2011: 115-132

Yohan Chon, Elmurod Talipov, Hyojeong Shin, Hojung Cha: Mobility prediction-based smartphone energy optimization for everyday location monitoring. SenSys 2011: 82-95

Jinuk Choi, Hojung Cha: A Processor Power Management Scheme for Handheld Systems Considering the Off-chip Contributions. IEEE Trans. Industrial Informatics 6(3): 255-264 (2010)

Sungkyu Cho, Hyojeong Shin, Seungjae Han, Hojung Cha, Rhan Ha: Density-adaptive network reprogramming protocol for wireless sensor networks. Wireless Communications and Mobile Computing 10(6): 857-874 (2010)

Hyojeong Shin, Hojung Cha: Wi-Fi Fingerprint-Based Topological Map Building for Indoor User Tracking. RTCSA 2010: 105-113

Hyoseung Kim, Shinyoung Yi, Wonwoo Jung, Hojung Cha: A Decentralized Approach for Monitoring Timing Constraints of Event Flows. RTSS 2010: 327-336

Jongmin Lee, Hojung Cha, Rhan Ha: Improving TCP fairness and performance with bulk transmission control over lossy wireless channel. Computer Networks 53(16): 2767-2781 (2009)

Taehyun Kim, Jongmin Lee, Hojung Cha, Rhan Ha: An energy-aware transmission mechanism for WiFi-based mobile devices handling upload TCP traffic. Int. J. Communication Systems 22(5): 625-640 (2009)

Hyungkeun Song, Sukwon Choi, Hojung Cha, Rhan Ha: Improving energy efficiency for flash memory based embedded applications. Journal of Systems Architecture - Embedded Systems Design 55(1): 15-24 (2009)

Jung-Hi Min, Hojung Cha, Rhan Ha: System-level integrated power management for handheld systems. Microprocessors and Microsystems - Embedded Hardware Design 33(3): 201-210 (2009)

Keewook Na, Yungeun Kim, Hojung Cha: Acoustic Sensor Network-Based Parking Lot Surveillance System. EWSN 2009: 247-262

Haksoo Choi, Nakyoung Kim, Hojung Cha: 6LoWPAN-SNMP: Simple Network Management Protocol for 6LoWPAN. HPCC 2009: 305-313

Chanmin Yoon, Haksoo Choi, Seungwoo Lee, Hojung Cha, Byunghun Song, Hyung Su Lee: Demo abstract: IEEE 802.15.4a-based anchor-free mobile node localization system. IPSN 2009: 403-404

Hyojeong Shin, Elmurod Talipov, Hojung Cha: IPv6 Lightweight Stateless Address Autoconfiguration for 6LoWPAN using Color Coordinators. PerCom 2009: 1-9

Jongmin Lee, Hojung Cha, Rhan Ha: A time-dominated TCP congestion control over heterogeneous networks. Int. J. Communication Systems 21(12): 1325-1345 (2008)

Dukju Ko, Seungjae Han, Hojung Cha, Rhan Ha: A traffic control system for IEEE 802.11 networks based on available bandwidth estimation. Wireless Communications and Mobile Computing 8(4): 407-419 (2008)

Haksoo Choi, Chanmin Yoon, Hojung Cha: Device Driver Abstraction for Multithreaded Sensor Network Operating Systems. EWSN 2008: 354-368

Jahyoung Koo, Jiyoung Yi, Hojung Cha: Localization in mobile ad hoc networks using cumulative route information. UbiComp 2008: 124-133

Youngmin Kim, Hyojeong Shin, Hojung Cha: Y-MAC: An Energy-Efficient Multi-channel MAC Protocol for Dense Wireless Sensor Networks. IPSN 2008: 53-63

Seunghun Cha, Hyojeong Shin, Hojung Cha: Sensible Doctor - A Mobile Diagnosis Tool for Wireless Sensor Networks. IPSN 2008: 565-566

Nakyoung Kim, Sukwon Choi, Hojung Cha: Automated sensor-specific power management for wireless sensor networks. MASS 2008: 305-314

Junho Ahn, Jung-Hi Min, Hojung Cha, Rhan Ha: A Power Management mechanism for Handheld Systems having a Multimedia Accelerator. PerCom 2008: 663-668

Jiyoung Yi, Jahyoung Koo, Hojung Cha: A Localization Technique for Mobile Sensor Networks Using Archived Anchor Information. SECON 2008: 64-72

Sung-Min Lee, Hojung Cha, Rhan Ha: Energy-aware location error handling for object tracking applications in wireless sensor networks. Computer Communications 30(7): 1443-1450 (2007)

Seongkwu Jeon, Jongmin Lee, Hojung Cha, Rhan Ha: Proxy-based failure detection in multimedia streaming environments. Int. J. Communication Systems 20(2): 131-145 (2007)

Oh-keun Kwon, Hojung Cha, Seung-Jae Han, Rhan Ha: Empirical evaluation of receiver-based TCP delay control in CDMA2000 networks. Int. J. Communication Systems 20(8): 927-941 (2007)

Jung-Hi Min, Hojung Cha, Vason P. Srini: Dynamic power management of DRAM using accessed physical addresses. Microprocessors and Microsystems 31(1): 15-24 (2007)

Hyoseung Kim, Hojung Cha, Rhan Ha: Dynamic refresh-rate scaling via frame buffer monitoring for power-aware LCD management. Softw., Pract. Exper. 37(2): 193-206 (2007)

Hyoseung Kim, Hojung Cha: Multithreading Optimization Techniques for Sensor Network Operating Systems. EWSN 2007: 293-308

Sungwon Yang, Hojung Cha: An Empirical Study of Antenna Characteristics Toward RF-Based Localization for IEEE 802.15.4 Sensor Nodes. EWSN 2007: 309-324

Hojung Cha, Sukwon Choi, Inuk Jung, Hyoseung Kim, Hyojeong Shin, Jaehyun Yoo, Chanmin Yoon: RETOS: resilient, expandable, and threaded operating system for wireless sensor networks. IPSN 2007: 148-157

Hojung Cha, Sukwon Choi, Inuk Jung, Hyoseung Kim, Hyojeong Shin, Jaehyun Yoo, Chanmin Yoon: The RETOS operating system: kernel, tools and applications. IPSN 2007: 559-560

Jung-Hi Min, Hojung Cha: Reducing display power in DVS-enabled handheld systems. ISLPED 2007: 395-398

Jung-Hi Min, Hojung Cha, Jongho Nang: Energy management for interactive applications in mobile handheld systems. SAC 2007: 795-799

Shinyoung Yi, Jiyoung Yi, Hojung Cha: Tracking multiple mobile objects using IEEE 802.15.4-based ultrasonic sensor devices. SAC 2007: 1638-1639

Sungwon Yang, Jiyoung Yi, Hojung Cha: HCRL: A Hop-Count-Ratio based Localization in Wireless Sensor Networks. SECON 2007: 31-40

Sukwon Choi, Hojung Cha, SungChil Cho: A SoC-based Sensor Node: Evaluation of RETOS-enabled CC2430. SECON 2007: 132-141

Jiyoung Yi, Sungwon Yang, Hojung Cha: Multi-hop-based Monte Carlo Localization for Mobile Sensor Networks. SECON 2007: 162-171

Youngmin Kim, Hyojeong Shin, Hojung Cha: A multi-channel MAC implementation for wireless sensor networks. SenSys 2007: 371-372

SungHyun Moon, Taekjoo Kim, Hojung Cha: Enabling Low Power Listening on IEEE 802.15.4-Based Sensor Nodes. WCNC 2007: 2305-2310

Youngbin You, Jaehyun Yoo, Hojung Cha: Event Region for Effective Distributed Acoustic Source Localization in Wireless Sensor Networks. WCNC 2007: 2762-2767

Hojung Cha, Jongmin Lee, Jaehak Oh, Byung-Joon Park, Rhan Ha: Replacing media caches in streaming proxy servers. Journal of Systems Architecture 52(1): 25-40 (2006)

Sukwon Choi, Hojung Cha, Rhan Ha: A selective DVS technique based on battery residual. Microprocessors and Microsystems 30(1): 33-42 (2006)

Younghwa Lee, Hojung Cha: A Light-weight and Scalable Localization Technique Using Mobile Acoustic Source. CIT 2006: 235

Shinyoung Yi, Hojung Cha: An Active Tracking System Using IEEE 802.15.4-Based Ultrasonic Sensor Devices. EUC Workshops 2006: 485-494

Sung-Min Lee, Hojung Cha: A Grid-Based Tracking Mechanism with Satisfaction of Energy Conservation and Guaranteed QoS in Wireless Sensor Networks. ICOIN 2006: 286-295

Jongmin Lee, Hojung Cha, Rhan Ha: Enhancing TCP Throughput and Fairness with a Timer-Based Transmission Control over Heterogeneous Networks. ICOIN 2006: 650-659

Hyojeong Shin, Hojung Cha: Supporting Application-Oriented Kernel Functionality for Resource Constrained Wireless Sensor Nodes. MSN 2006: 748-759

Yeultak Sung, Hojung Cha: Parametric Routing for Wireless Sensor Networks. UCS 2006: 428-439

SungHyun Moon, Sung-Min Lee, Hojung Cha: A Congestion Control Technique for the Near-Sink Nodes in Wireless Sensor Networks. UIC 2006: 488-497

Hyoseung Kim, Hojung Cha: Towards a Resilient Operating System for Wireless Sensor Networks. USENIX Annual Technical Conference, General Track 2006: 103-108

Dong-hyun Kim, Rhan Ha, Hojung Cha: Traffic Load and Lifetime Deviation Based Power-Aware Routing Protocol for Wireless Ad Hoc Networks. WWIC 2006: 325-336

Sung-Min Lee, Hojung Cha, Rhan Ha: An Energy-Efficient Location Error Handling Technique for Mobile Object Tracking in Wireless Sensor Networks. WWIC 2006: 337-348

Hojung Cha, Joonhee Lee, Wonjun Lee, Rhan Ha: Wireless Quality Assessment Using RLP NAK Rate in CDMA2000 1X Networks. IEICE Transactions 88-B(5): 2177-2181 (2005)

Hojung Cha, Jongmin Lee, Jongho Nang, Sungyong Park, Jin-Hwan Jeong, Chuck Yoo, Jin-Young Choi: A Video Streaming System for Mobile Phones: Practice and Experience. Wireless Networks 11(3): 265-274 (2005)

Wonwoo Jung, Sujeong Shin, Sukwon Choi, Hojung Cha: Reducing Congestion in Real-Time Multi-party-tracking Sensor Network Applications. EUC Workshops 2005: 1191-1200

Jongmin Lee, Hojung Cha, Rhan Ha: A Two-Phase TCP Congestion Control for Reducing Bias over Heterogeneous Networks. ICOIN 2005: 99-108

Sung-Min Lee, Hojung Cha: A Locating Mechanism for Multiple Mobile Nodes in Wireless Sensor Networks. RTCSA 2005: 273-276

Jongmin Lee, Hojung Cha: A receiver-driven TCP flow control in CDMA2000 wireless networks with constrained mobile resources. Computer Networks 46(2): 237-252 (2004)

Jinguk Jeong, Jongho Nang, Hojung Cha: A Domain-Independent and Personalized Video Abstraction Algorithm. J. Inf. Sci. Eng. 20(6): 1183-1196 (2004)

Seungpil Shin, Rhan Ha, Hojung Cha: A Mobility-Based Mobile Multicast with Flexible Range. ICOIN 2004: 221-230

Keun Soo Yim, Hojung Cha, Kern Koh: NIC-NET: A Host-Independent Network Solution for High-End Network Servers. PDCAT 2004: 401-405

Hojung Cha, Jaewook Kim, Rhan Ha: Bandwidth constrained smoothing for multimedia streaming with scheduling support. Journal of Systems Architecture 48(11-12): 353-366 (2003)

Hojung Cha, Jaewook Kim, Rhan Ha: Erratum to "Bandwidth constrained smoothing for multimedia streaming with scheduling support" [Journal of Systems Architecture 48 (2003) 353-366]. Journal of Systems Architecture 49(1-2): 59 (2003)

Hojung Cha, Jaehak Oh, Rhan Ha: Dynamic Frame Dropping for Bandwidth Control in MPEG Streaming System. Multimedia Tools Appl. 19(2): 155-178 (2003)

Hojung Cha, Rhan Ha, Jane W.-S. Liu: Experimental Analysis of Timing Validation Methods for Distributed Real-Time Systems. The Journal of Supercomputing 25(1): 73-94 (2003)

Wonjun Lee, Jaideep Srivastava, Hojung Cha: QoS-adaptive bandwidth scheduling in continuous media streaming. Information & Software Technology 44(9): 551-563 (2002)

Hojung Cha, Jongmin Lee, Jaehak Oh: Constructing a video server with tertiary storage: Practice and experience. Multimedia Syst. 8(5): 380-394 (2002)

Hojung Cha, Jiho Bang, Rhan Ha: Static Document Scheduling with Improved Response Time in HTTP/1.1. ICOIN (1) 2002: 384-393

Jongho Nang, Jinguk Jeong, Sungyong Park, Hojung Cha: An Abstraction of Low Level Video Features for Automatic Retrievals of Explosion Scenes. IEEE Pacific Rim Conference on Multimedia 2002: 200-208

Hyun-Wook Jin, Ki-Seok Bang, Chuck Yoo, Jin-Young Choi, Hojung Cha: Bottleneck Analysis of a Gigabit Network Interface Card: Formal Verification Approach. SPIN 2002: 170-186

Hojung Cha, Rhan Ha: Validating Timing Constraints of Dependent Jobs with Variable Execution Times in Distributed Real-Time Systems. TACAS 2002: 83-97

Hojung Cha, Dongho Lee: H-BSP: A Hierarchical BSP Computation Model. The Journal of Supercomputing 18(2): 179-200 (2001)

Jiho Bang, Rhan Ha, Hojung Cha: A Web Content Scheduling for Improved Latency. ICME 2001

Jaewook Kim, Rhan Ha, Hojung Cha: Bandwidth Adaptive Smoothing for Multimedia Delivery. IEEE International Conference on Multimedia and Expo (III) 2000: 1611-1614

Byoungho Ahn, Hojung Cha, Kookhyun Cho: Experience with a QoS-providing multicast management system. NOMS 2000: 967-968

Rhan Ha, Hojung Cha, Jane W.-S. Liu: Validating Real-Time Constraints in Heterogeneous Multiprocessor and Distributed Systems. Journal of Systems Integration 9(3): 207-222 (1999)

Hojung Cha, Dongho Lee: A Hierarchical BSP Model Supporting Processor Locality. ICPADS 1997: 20-27

Hojung Cha, Peter Jones: The HyperDynamic architecture (massively parallel message-passing machine) - architecture and performance. ICS 1991: 9-19