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Research Output 1997 2019

2019

Energy-efficient computing for wireless powered mobile edge computing systems

Lim, H. & Hwang, T., 2019 Sep, 2019 IEEE 90th Vehicular Technology Conference, VTC 2019 Fall - Proceedings. Institute of Electrical and Electronics Engineers Inc., 8891235. (IEEE Vehicular Technology Conference; vol. 2019-September).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Energy Efficient
Energy efficiency
Computing
Energy Efficiency
Convex optimization

Energy-Efficient MISO Wireless Powered Communications

Lim, H. & Hwang, T., 2019 Feb 25, 2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019. Institute of Electrical and Electronics Engineers Inc., 8651753. (2019 16th IEEE Annual Consumer Communications and Networking Conference, CCNC 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Space division multiple access
Time division multiple access
Telecommunication networks
Communication
Energy efficiency

User-Centric Energy Efficiency Optimization for MISO Wireless Powered Communications

Lim, H. & Hwang, T., 2019 Feb 1, In : IEEE Transactions on Wireless Communications. 18, 2, p. 864-878 15 p., 8580593.

Research output: Contribution to journalArticle

Space division multiple access
Time division multiple access
Beamforming
Energy Efficiency
Wireless Communication
2018
2 Citations (Scopus)

Energy-Efficient Routing and Link Adaptation for Two-Dimensional Wireless Relay Networks in the Wideband Regime

Kwon, Y., Park, H., Oh, J., Miao, G. & Hwang, T., 2018 Aug 28, (Accepted/In press) In : IEEE Transactions on Wireless Communications.

Research output: Contribution to journalArticle

Link Adaptation
Relay Networks
Energy Efficient
Telecommunication links
Wireless Networks
2017
2 Citations (Scopus)

A Game with Randomly Distributed Eavesdroppers in Wireless Ad Hoc Networks: A Secrecy EE Perspective

Kwon, Y., Wang, X. & Hwang, T., 2017 Nov, In : IEEE Transactions on Vehicular Technology. 66, 11, p. 9916-9930 15 p., 7993061.

Research output: Contribution to journalArticle

Wireless Ad Hoc Networks
Wireless ad hoc networks
Energy Efficiency
Energy efficiency
Chemical activation
8 Citations (Scopus)

Energy Efficient Communication for Secure D2D Underlaid Cellular Networks

Kwon, Y., Suh, H., Oh, J. & Hwang, T., 2017 Oct 1, In : IEEE Transactions on Vehicular Technology. 66, 10, p. 9110-9123 14 p., 7944601.

Research output: Contribution to journalArticle

Cellular Networks
Energy Efficient
Base stations
Spectral Efficiency
Energy efficiency
2016

Adaptive unlicensed band access for downlink cellular networks

Kim, H., Bang, J., Kim, S., Ji, H., Kim, Y., Hwang, T., Choi, S., Lee, C. & Hong, D., 2016 Jan 25, 2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 7390832. (2015 IEEE 82nd Vehicular Technology Conference, VTC Fall 2015 - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Access control
Outages
Communication systems
Degradation
38 Citations (Scopus)

E2-MAC: Energy Efficient Medium Access for Massive M2M Communications

Miao, G., Azari, A. & Hwang, T., 2016 Nov 1, In : IEEE Transactions on Communications. 64, 11, p. 4720-4735 16 p.

Research output: Contribution to journalArticle

Energy utilization
Network protocols
Carrier sense multiple access
Communication
Medium access control
3 Citations (Scopus)

Energy efficiency of sensing-based spectrum sharing technique for cognitive radio systems

Park, H. & Hwang, T., 2016 Jul 12, 2016 IEEE International Conference on Communications, ICC 2016. Institute of Electrical and Electronics Engineers Inc., 7511211. (2016 IEEE International Conference on Communications, ICC 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Radio systems
Cognitive radio
Energy efficiency
MIMO systems
4 Citations (Scopus)

Energy-efficient link adaptation for secure d2d underlaid cellular networks

Oh, J., Kwon, Y. & Hwang, T., 2016 Jan 1, 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 7841807

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Base stations
Energy efficiency
Redundancy
Transmitters
22 Citations (Scopus)

Energy-Efficient Power Control of Cognitive Femto Users for 5G Communications

Park, H. & Hwang, T., 2016 Apr 1, In : IEEE Journal on Selected Areas in Communications. 34, 4, p. 772-785 14 p., 7437400.

Research output: Contribution to journalArticle

Power control
Energy efficiency
Communication
Femtocell
MIMO systems
12 Citations (Scopus)

On the Capacity Gain from Full Duplex Communications in a Large Scale Wireless Network

Wang, X., Huang, H. & Hwang, T., 2016 Sep 1, In : IEEE Transactions on Mobile Computing. 15, 9, p. 2290-2303 14 p., 7300430.

Research output: Contribution to journalArticle

Wireless networks
Communication
Shot noise
Wireless mesh networks (WMN)
Outages
2015

A practical precoder design for EST-based modulation in frequency-selective channel

Jang, S., Park, H. & Hwang, T., 2015 Dec 11, International Conference on ICT Convergence 2015: Innovations Toward the IoT, 5G, and Smart Media Era, ICTC 2015. Institute of Electrical and Electronics Engineers Inc., p. 15-17 3 p. 7354484. (International Conference on ICT Convergence 2015: Innovations Toward the IoT, 5G, and Smart Media Era, ICTC 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

FIR filters
Modulation
Matched filters
Transmitters
5 Citations (Scopus)

Energy-Efficient Adaptation of Pilot Power, Data Power, and Transmission Rate for Downlink Multiuser MIMO Systems

Jang, M., Park, H., Kwon, Y. & Hwang, T., 2015 Jun 1, In : IEEE Transactions on Vehicular Technology. 64, 6, p. 2692-2698 7 p., 6870454.

Research output: Contribution to journalArticle

Multiple-input multiple-output (MIMO) Systems
Energy Efficiency
Energy Efficient
Energy efficiency
Link Adaptation
3 Citations (Scopus)

Energy-Efficient Power Control for TDD MISO Systems

Jang, M., Kwon, Y., Park, H. & Hwang, T., 2015 Oct 1, In : IEEE Transactions on Vehicular Technology. 64, 10, p. 4851-4856 6 p., 6951518.

Research output: Contribution to journalArticle

Power Control
Energy Efficiency
Energy Efficient
Power control
Energy efficiency
23 Citations (Scopus)

Energy-Efficient Transmit Power Control for Multi-tier MIMO HetNets

Kwon, Y., Hwang, T. & Wang, X., 2015 Oct 1, In : IEEE Journal on Selected Areas in Communications. 33, 10, p. 2070-2086 17 p., 7110494.

Research output: Contribution to journalArticle

MIMO systems
Power control
Base stations
Energy efficiency
Antennas

Green Radio

Hwang, T., Miao, G., Park, H., Kwon, Y. & Himayat, N., 2015 Jul 24, Green Communications: Principles, Concepts and Practice. wiley, p. 119-134 16 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Energy utilization
Medium access control
Energy efficiency
Communication
Communication systems
4 Citations (Scopus)

Optimal beamforming and power allocation for cognitive femto base stations based on soft decision

Park, H. & Hwang, T., 2015 May 1, In : IEEE Journal on Selected Areas in Communications. 33, 5, p. 878-895 18 p., 6913497.

Research output: Contribution to journalArticle

Beamforming
Base stations
Antennas
Macros
Transmitters

Probabilistic approach for sensing performances of localized surface plasmon resonance biosensors

Yang, H., Lee, W., Hwang, T. & Kim, D., 2015 Jan 1, International Conference on Nano-Bio Sensing, Imaging, and Spectroscopy 2015, NBSIS 2015. Kim, D., Kim, M-G. & Park, S-H. (eds.). SPIE, 95230L. (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; vol. 9523).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Poisson Distribution
Poisson distribution
Surface Plasmon Resonance
Surface plasmon resonance
Biosensing Techniques
2014
7 Citations (Scopus)

A game-theoretic approach for energy-efficient power control in spectrum sharing networks

Kwon, Y. & Hwang, T., 2014 Jan 1, 2014 IEEE International Conference on Communications, ICC 2014. IEEE Computer Society, p. 3493-3498 6 p. 6883862

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Power control
Energy efficiency
Costs
29 Citations (Scopus)

Energy efficient pilot and link adaptation for mobile users in TDD multi-user MIMO systems

Kim, Y., Miao, G. & Hwang, T., 2014 Jan 1, In : IEEE Transactions on Wireless Communications. 13, 1, p. 382-393 12 p.

Research output: Contribution to journalArticle

Link Adaptation
Multiuser MIMO
MIMO Systems
MIMO systems
Energy Efficient
1 Citation (Scopus)

Energy-efficient uplink power control for multiuser SIMO systems with imperfect channel state information

Jang, M., Kwon, Y., Park, H. & Hwang, T., 2014 Sep 15, In : Metallography, Microstructure, and Analysis. 2014, 1, p. 1-11 11 p.

Research output: Contribution to journalArticle

Channel state information
Power control
Base stations
Channel estimation
Dynamic response
17 Citations (Scopus)

Optimal beamforming and power allocation for sensing-based spectrum sharing in cognitive radio networks

Choi, S., Park, H. & Hwang, T., 2014 Jan 1, In : IEEE Transactions on Vehicular Technology. 63, 1, p. 412-417 6 p., 6544275.

Research output: Contribution to journalArticle

Spectrum Sharing
Cognitive Radio Networks
Power Allocation
Beamforming
Cognitive radio
16 Citations (Scopus)

Probabilistic evaluation of surface-enhanced localized surface plasmon resonance biosensing

Yang, H., Lee, W., Hwang, T. & Kim, D., 2014 Nov 17, In : Optics Express. 22, 23, p. 28412-28426 15 p.

Research output: Contribution to journalArticle

surface plasmon resonance
evaluation
confidence
signatures
intervals
2012

Achieving full diversity and full rate with energy spreading transform for MIMO systems

Hwang, T., Kim, Y., Park, H. & Kwon, Y., 2012 Dec 1, 2012 IEEE Global Communications Conference, GLOBECOM 2012. p. 4476-4481 6 p. 6503823. (GLOBECOM - IEEE Global Telecommunications Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

MIMO systems
Antennas
Fading channels
Feedback
6 Citations (Scopus)

Energy spreading transform approach to achieve full diversity and full rate for MIMO systems

Hwang, T., Kim, Y. & Park, H., 2012 Dec 10, In : IEEE Transactions on Signal Processing. 60, 12, p. 6547-6560 14 p., 6275503.

Research output: Contribution to journalArticle

MIMO systems
Antennas
Space time codes
Multiplexing
Fading channels
8 Citations (Scopus)

Root mean square decomposition for EST-based spatial multiplexing systems

Hwang, T. & Kwon, Y., 2012 Mar 1, In : IEEE Transactions on Signal Processing. 60, 3, p. 1295-1306 12 p., 6104174.

Research output: Contribution to journalArticle

Multiplexing
Decomposition
Bit error rate
Channel state information
Transceivers
2 Citations (Scopus)

Sum-rate improved interference alignment for the M × 2 MIMO X channel

Kwon, Y. & Hwang, T., 2012 May 22, In : IEEE Communications Letters. 16, 7, p. 1088-1091 4 p., 6200379.

Research output: Contribution to journalArticle

Multiple-input multiple-output (MIMO)
Alignment
Interference
Transmitters
Computational complexity
2011
2 Citations (Scopus)

Blind frequency-offset tracking scheme for multiband orthogonal frequency division multiplexing using time-domain spreading

Kim, J. Y., You, Y. H. & Hwang, T., 2011 Jul 22, In : IET Communications. 5, 11, p. 1544-1549 6 p.

Research output: Contribution to journalArticle

Orthogonal frequency division multiplexing
Ultra-wideband (UWB)
Frequency estimation
Mean square error
2010

A full transmit diversity using cyclic delay diversity for EST based modulation

Jin, S. & Hwang, T., 2010 Jul 1, In : IEEE Communications Letters. 14, 7, p. 632-634 3 p., 5545613.

Research output: Contribution to journalArticle

Transmit Diversity
Fading channels
Modulation
Transform
Fading Channels

A robust closed-loop transmit-diversity scheme with unknown CSI reliability

Yoon, E., Kim, J. T. & Hwang, T., 2010 Jan 1, In : IEICE Transactions on Communications. E93-B, 9, p. 2400-2406 7 p.

Research output: Contribution to journalArticle

Channel state information
Transmitters
Antennas
2 Citations (Scopus)

Simple expression of ergodic capacity for Rician fading channel

Koh, S. & Hwang, T., 2010 Jun, In : IEICE Transactions on Communications. E93-B, 6, p. 1594-1596 3 p.

Research output: Contribution to journalArticle

Channel capacity
Fading channels
2009
6 Citations (Scopus)

Antenna selection and ordering for EST-based modulation with cyclic delay diversity

Jang, S., Hwang, T. & Koh, I. S., 2009 Nov 1, In : IEEE Transactions on Vehicular Technology. 58, 9, p. 5269-5274 6 p., 5164956.

Research output: Contribution to journalArticle

Antenna Selection
Modulation
Receiver
Interference
Transform

A robust sampling frequency offset estimator for WLAN-OFDM

You, Y. H., Hwang, T., Jeong, K. S. & Yi, J. H., 2009 Jan 1, In : IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. E92-A, 6, p. 1523-1525 3 p.

Research output: Contribution to journalArticle

Frequency Offset
Wireless LAN
Wireless local area networks (WLAN)
Orthogonal Frequency Division multiplexing (OFDM)
Orthogonal frequency division multiplexing

Cost-efficient IQ imbalance compensation scheme for DRM plus

Yang, H., Jeong, K. S., Yi, J. H., Hwang, T. & You, Y. H., 2009 Jun 10, In : ieice electronics express. 6, 11, p. 743-749 7 p.

Research output: Contribution to journalArticle

Digital radio
frequency division multiplexing
Orthogonal frequency division multiplexing
costs
Radio systems
517 Citations (Scopus)

OFDM and its wireless applications: A survey

Hwang, T., Yang, C., Wu, G., Li, S. & Li, G. Y., 2009 Jun 3, In : IEEE Transactions on Vehicular Technology. 58, 4, p. 1673-1694 22 p.

Research output: Contribution to journalArticle

Orthogonal Frequency Division multiplexing (OFDM)
Orthogonal frequency division multiplexing
Wireless Communication
Communication channels (information theory)
Frequency Offset

Optimum hard-decision detector for energy-spreading transform based multiple access

Lee, J. & Hwang, T., 2009 Jan 1, In : IEICE Transactions on Communications. E92-B, 6, p. 2243-2246 4 p.

Research output: Contribution to journalArticle

Mean square error
Detectors
Processing
3 Citations (Scopus)

Signal detection for EST based modulation in doubly-selective channels

Lee, J., Hwang, T. & Li, Y., 2009 Aug 12, In : IEEE Transactions on Signal Processing. 57, 8, p. 3287-3291 5 p.

Research output: Contribution to journalArticle

Matched filters
Signal detection
Signal to noise ratio
Modulation
2008
7 Citations (Scopus)

An adaptive modulation algorithm for performance improvement of MIMO ML systems

Ham, J., Kim, M. S., Lee, C. & Hwang, T., 2008 Dec 29, In : IEEE Communications Letters. 12, 11, p. 819-821 3 p.

Research output: Contribution to journalArticle

Adaptive Modulation
Adaptive modulation
Multiple-input multiple-output (MIMO)
Maximum likelihood
Maximum Likelihood
3 Citations (Scopus)

Energy spreading transform for down-link MC-CDMA

Hwang, T., Li, Y. & Yi, Y. W., 2008 May 1, In : IEEE Transactions on Wireless Communications. 7, 5, p. 1522-1526 5 p., 4524311.

Research output: Contribution to journalArticle

MC-CDMA
Code division multiple access
Transform
Energy
Spatial Diversity
7 Citations (Scopus)

Multiple access with energy spreading transform

Hwang, T., 2008 Dec 1, In : IEEE Signal Processing Letters. 15, p. 150-153 4 p.

Research output: Contribution to journalArticle

Iterative Detection
Multiuser detection
Channel coding
Signal detection
Multiple Access
2007

Iterative cyclic prefix reconstruction for precoded SC-FDE

Hwang, T., 2007 Jan 1, In : IEICE Transactions on Communications. E90-B, 9, p. 2447-2455 9 p.

Research output: Contribution to journalArticle

Bandwidth
3 Citations (Scopus)

Optimum filtering for energy-spreading transform-based equalization

Hwang, T. & Li, Y. G., 2007 Mar 1, In : IEEE Transactions on Signal Processing. 55, 3, p. 1182-1187 6 p.

Research output: Contribution to journalArticle

Mathematical transformations
1 Citation (Scopus)

Transmit diversity for down-link MC-CDMA based on energy spreading transform

Hwang, T. & Li, Y., 2007 Nov 27, 2007 IEEE Wireless Communications and Networking Conference, WCNC 2007. p. 612-616 5 p. 4204294. (IEEE Wireless Communications and Networking Conference, WCNC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Code division multiple access
Antennas
Matched filters
Signal detection
Bit error rate
2006
6 Citations (Scopus)

Energy spreading transform based iterative signal detection for MIMO fading channels

Hwang, T., Li, Y. & Sari, H., 2006 Jul 1, In : IEEE Transactions on Wireless Communications. 5, 7, p. 1746-1756 11 p., 1673086.

Research output: Contribution to journalArticle

Iterative Detection
Signal Detection
Signal detection
Fading Channels
Fading channels

Improved scheme for energy spreading transform based equalization

Hwang, T. & Li, Y., 2006 Dec 1, 2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings. Vol. 5. p. 2354-2358 5 p. 1683278

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Equalization
Transform
Energy
Optimal Domain
Filter
26 Citations (Scopus)

Novel iterative equalization based on energy-spreading transform

Hwang, T. & Li, Y., 2006 Jan 1, In : IEEE Transactions on Signal Processing. 54, 1, p. 190-203 14 p.

Research output: Contribution to journalArticle

Intersymbol interference
Matched filters
Signal to noise ratio
Feedback
2004
3 Citations (Scopus)

A bandwidth efficient block transmission with frequency-domain equalization

Hwang, T. & Li, Y., 2004 Dec 1, Proceedings of the IEEE 6th Circuits and Systems Symposium on Emerging Technologies: Frontiers of Mobile and Wireless Communication. p. 433-436 4 p. (Proceedings of the IEEE 6th Circuits and Systems Symposium on Emerging Technologies: Frontiers of Mobile and Wireless Communication; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bandwidth
Transmitters
1 Citation (Scopus)

Novel iterative equalization based on energy spreading transform

Hwang, T. & Li, Y., 2004 Aug 30, In : IEEE International Conference on Communications. 4, p. 2352-2356 5 p.

Research output: Contribution to journalConference article

Matched filters
Decoding
Signal to noise ratio
Feedback
2 Citations (Scopus)

Space-time energy spreading transform based MIMO technique with iterative signal detection

Hwang, T. & Li, Y., 2004 Dec 1, p. 2470-2474. 5 p.

Research output: Contribution to conferencePaper

Signal detection
Signal to noise ratio