International Conference Proceedings

2017

[193] Y. Lee, E. Hwang, and J. Choi, “Compressive Sensing Based Power Signal Compression in Advanced Metering Infrastructure,” in Proc. APCC 2017, December 2017, Perth, Australia.
[192] J. Choi, “Secrecy Rate of Channel-Aware Randomized Secure Transmission Schemes in Multicarrier Systems,” in Proc. IEEE ICTC 2017, Oct. 2017, Jeju, Korea. 
[191] J. Choi, “A Suboptimal Approach for Minimum Transmit Power NOMA Beamforming,” in Proc. IEEE VTC 2017 Fall, Toronto, Canada, September 2017. 
[190] J. Choi, “NOMA: Principles and Recent Results,” (InvitedPaper) in Proc. ISWCS2017, Bologna, Italy, August 2017. 
[189] Y. Lee, H. Jo, and J. Choi, “Compressive Sensing based Physical Layer Authentication for Wireless Energy Auditing Networks,” in Proc. IEEE APWCS-2017, Incheon, Korea, Aug. 2017. 
[188] K. J. Lee and J. Choi, “A GPU Implementation of Access Point to Support Massive Connectivity in MTC,” in Proc. IEEE APWCS-2017, Incheon, Korea, Aug. 2017. 
[187] J. Y. Lee, K. J. Lee, and J. Choi, “Compressive Random Access using Distance based Resource Block Selection Scheme for Machine Type Communications,” in Proc. IEEE SPAWC 2017, Sapporo, Japan, July 2017. 
[186] E. Chatziantoniou, Y. Ko, and J. Choi, “Non-Orthogonal Multiple Access with Multi-carrier Index Keying,” in Proc. European Wireless 2017, Dresden, Germany, May 2017. 
[185] J. Choi, “Minimum transmit power NOMA beamforming for millimeter-wave communications,” in Proc. IEEE VTC 2017 Spring, Sydney, June 2017. 
[184] J. Choi, “Compressive random access for MTC in distributed input distributed output systems,” in Proc. IEEE VTC 2017 Spring, Sydney, June 2017. 
[183] J. Choi and N. Y. Yu, “Channel Division Multiple Access for MTC under Frequency-Selective Fading,” in Proc. IEEE ICC 2017, Paris, France, May 2017. 
[182] J. Choi, “On the Stability and Throughput of Compressive Random Accessin MTC,” in Proc. IEEE ICC 2017, Paris, France, May 2017. 
[181] J. Choi, “Single-Carrier Index Modulation and CS Detection,” in Proc. IEEE ICC 2017, Paris, France, May 2017. 
[180] N. Y. Yu, K. Lee, and J. Choi, “Pilot Signal Design for Compressive Sensing Based Random Access in Machine Type Communications,” in Proc. IEEE WCNC 2017, San Francisco, CA, March 2017. 

 

2016

[179] J. Choi, K. Lee, and N. Y. Yu, “Compressive Random Access Using Multiple Resource Blocks for MTC,” in Proc. IEEE Globecom (Workshop on Emerging Technologies for 5G Wireless Cellular Networks), Dec. 2016.
[178] Z. Yuan, C. Chen, L. Bai, Y. Jin, and J. Choi, “Secure Relay Beamforming with Correlated Channel Models in Dual-hop Wireless Communication Networks,” in Proc. IEEE Globecom, Dec. 2016.
[177] J. Choi, K. Lee, Y. Lee, and N. Y. Yu, “Secure Compressive Random Access for Meter Reading in Smart Grid using Multi-Antenna Access Point,” in Proc. IEEE SmartGridComm-2016, Sydney, Australia, Nov. 2016.
[176] J. Choi and N. Y. Yu, “On the Correctness of Coherence in the Determination of Preambles for Compressive Random Access,” in Proc. IEEE ICTC 2016, Oct. 2016, Jeju, Korea.
[175] J. Choi, “On the Throughput Comparison between Multi-Channel ALOHA and Compressive Random Access,” in Proc. IEEE ICTC 2016, Oct. 2016, Jeju, Korea.
[174] J. Choi, “Joint Device Identification and Data Detection in Physical Layer for Many Devices in IoT,” in Proc. IEEE ICTC 2016, Oct. 2016, Jeju, Korea.
[173] J. Choi, “Full-Duplexing Jamming Attack for Active Eavesdropping,” in Proc. International Conference on IT Convergence and Security 2016, Prague, Czech, Sep. 2016.
[172] W. Cai, C. Chen, L. Bai, Y. Jin, and J. Choi, “The User Selection and Power Allocation Scheme for NOMA based on Outage Probability and Imperfect CSI,” in Proc. IEEE VTC2016-Fall, Montreal, Canada, Sep. 2016.
[171] X. Li, C. Chen, L. Bai, Y. Jin, and J. Choi, “Energy Efficiency Maximization for Downlink OFDMA Systems with Feedback Channel Capacity Constraints,” in Proc. IEEE VTC2016-Fall, Montreal, Canada, Sep. 2016.
[170] Y. Lee, B. Sun, J. Kim, and J. Choi, “Beamforming for Secure Antenna Subset Modulation in Micro-wave Systems,” in Proc. IEEE APWCS-2016, Tokyo, Japan, Aug. 2016.
[169] J. Choi and J. Ha, “Secret Key Transmission Based on Channel Reciprocity for Secure IoT,” in Proc. IEEE EuCNC 2016, Athens, Greece, June 2016.
[168] J. Choi, “On the Spectral Efficient Nonorthogonal Multiple Access Schemes,” in Proc. IEEE EuCNC 2016, Athens, Greece, June 2016.
[167] J. Choi, “Layered Reception for Heterogeneous Traffics From Mobile Cloud Applications,” in Proc. IEEE EuCNC 2016, Athens, Greece, June 2016.
[166] J. Mao, C. Chen, L. Bai, H. Xiang, and J. Choi, “Subcarrier and Power Allocation for Multiuser MIMO-OFDM Systems with Various Detectors,” in Proc. IEEE VTC2016-Spring, Nanjing, China, May 2016.
[165] J. Choi, “On the Sparsity for Random Access in Machine Type Communications under Frequency-Selective Fading,” in Proc. IEEE ICC 2016, Malaysia, May 2016.
[164] J. Choi and E. Hwang, “Secure Multicarrier DS/SS with Induced Random Flipping,” in Proc. IEEE ICC 2016, Malaysia, May 2016.

 

2015

[163] J. Choi, “Sparse index multiple access,” in Proc. IEEE GlobalSIP 2015, Dec. 2015, Orlando.
[162] S. Im, J. Choi, and J. Ha, “Secret key agreement for massive MIMO systems with two-way training under pilot contamination attack,” in Proc. IEEE Globecom 2015 (Workshop QCIT), Dec. 2015, San Diego.
[161] J. Choi and Y. Ko, “Sparse multi-carrier index keying OFDM with index separation over correlated subcarriers,” in Proc. IEEE ICTC 2015, Oct. 2015, Jeju, Korea.
[160] J. Choi and J. Ha, “A user-aware broadcast scheme using rate-adaptive coded transmission,” in Proc. IEEE ICTC 2015, Oct. 2015, Jeju, Korea.
[159] J. Choi and J. Ha, “Power allocation of random masked beamforming for guaranteed secure communications,” in Proc. IEEE ICTC 2015, Oct. 2015, Jeju, Korea (Best Paper Award).
[158] M. Zhang, L. Bai, C. Chen, and J. Choi, “Analysis of adjacent channel interference in heterogeneous cellular networks, in Proc. IEEE WCSP 2015, Oct. 2015, Nanjing, China.
[157] J. Choi, “Energy efficiency of a heterogeneous network using millimeter-wave small-cell base stations,” in Proc. IEEE PIMRC, Hong Kong, 2015.
[156] Y. Yang, C. Chen, L. Bai, Y. Jin, and J. Choi, “Ergodic rate analysis of power allocation schemes in two-way decode-and-forward relay systems,” in IEEE VTC2015-Fall, Boston, Sep. 2015.
[155] J. Choi, “On the performance of multiuser beam selection at base station and user arrays in mm-wave systems,” in ICUFN 2015, Sapporo, Japan, July 2015 (Excellent Paper Award).
[154] J. Choi and Y. Ko, “Compressive sensing based detector for sparse signal modulation in precoded OFDM,” in Proc. IEEE ICC 2015, London, UK, June 2015.
[153] J. Choi, “On the energy efficiency and total bandwidth in channel-aware random access for WSNs,” in Proc. IEEE ICC 2015, London, UK, June 2015.
[152] Y. Yang, C. Chen, L. Bai, Y. Jin, and J. Choi, “Optimal and near optimal power allocation schemes in two-way relay systems with physical layer network coding,” in IEEE VTC2015-Spring, Glasgow, UK, May 2015.

 

2014

[151] J. Choi, “On the probability of beam collisions in mm-wave based downlink transmissions,” in Proc. IEEE ICCS 2014, Macau, November 2014.
[150] J. Choi, “On the decomposition method for distributed downlink beamforming in multi-cell systems,” in Proc. IEEE VTC Fall 2014, Vancouver, Canada, September 2014.
[149] J. Choi and J. Ha, “On the estimation of slow-fading coefficients for pilot contamination precoding,” in Proc. IEEE VTC Spring 2014, Seoul, Korea, May 2014.
[148] J. Choi, “Signal dependent antenna mapping for spatial modulation,” in Proc. IEEE VTC Spring 2014, Seoul, Korea, May 2014.
[147] Z. Liu, C. Chen, L. Bai, H. Xiang, and J. Choi, “Transmit power minimization beamforming via amplify-andforward relays in wireless networks with multiple eavesdroppers,” in Proc. IEEE ICC 2014.

 

2013

[146] W. Bai, Q. Li, L. Bai, and J. Choi, “MIMO iterative receiver using lattice reduction-aided detection and successive interference cancellation,” in Proc. IEEE WCSP 2013.
[145] S. Dou, L. Bai, Q. Li, and J. Choi, “Iterative channel estimation and detection with computational efficient lattice basis reduction for MIMO systems,” in Proc. IEEE WCSP 2013.
[144] S. Im, H. Jeon, J. Choi and J. Ha, “Robustness of secret key agreement protocol with massive MIMO under pilot contamination attack,” in Proc. IEEE ICTC 2013.
[143] J. Choi and J. Ha, “Low-dimensional minimum leakage multiuser beamforming in a multicell system (invited paper),” in Proc. IEEE ICTC 2013.
[142] L. Bai, Q. Li, J. Choi, and Q. Yu, “On the optimization of lattice reduction-based approximate MAP detection using randomized sampling in MIMO systems (invited paper),” in Proc. IEEE ICTC 2013.
[141] S. Im, H. Jeon, J. Choi, and J. Ha, “Secret key agreement under an active attack in MU-TDD systems with large antenna arrays,” in Proc. IEEE Globecom 2013.
[140] J. Choi, J. Ha, and H. Jeon, “Physical layer security for wireless sensor networks,” (Invited Paper) in Proc. IEEE PIMRC, London, 2013, pp. 1–6.
[139] Q.-T. Vien, B. G. Stewart, J. Choi, and H. X. Nguyen, “On the energy efficiency of HARQ-IR protocols for wireless network-coded butterfly networks,” in Proc. IEEE WCNC 2013, Shanghai, China, April 2013.
[138] J. Choi, “A user selection criterion for vector-perturbation precoding in multiuser systems,” in Proc. IEEE WCNC 2013, Shanghai, China, April 2013.

 

2012

[137] Y. Li, L. Bai, C. Chen, Y. Jin, and J. Choi, “Orthogonal beamforming for rural broadband wireless access with limited feedback,” in Proc. IEEE Globecom 2012, December 2012, pp. 1-5 (cdrom).
[136] D. Kim, J. Choi, and J. Ha, “On the soft information extraction from hard-decision outputs in MLC NAND flash memory,” in Proc. IEEE Globecom 2012, December 2012, pp. 1-5 (cdrom).
[135] D. Wang, L. Bai, C. Chen, Y. Jin, and J. Choi, “Coordinated relay beamforming based on the worst-case SINR in multicell wireless systems,” in Proc. IEEE Globecom 2012, December 2012, pp. 1-5 (cdrom).
[134] D.Wang, L. Bai, C. Chen, Y. Jin, and J. Choi, “Collaborative relay beamforming based on the worst-case SINR for cellular systems,” in Proc. APCC 2012, October 2012, pp. 1-5 (cdrom).
[133] J. Choi, “Secure multipath routing in wireless multihop networks based on erasure channel modeling,” in Proc. IEEE Wireless Advanced 2012, London, June 2012, 1-5 (cdrom).
[132] J. Choi, S. Li, X. Wang, and J. Ha, “A general distributed consensus algorithm for wireless sensor networks,” in Proc. IEEE Wireless Advanced 2012, London, June 2012, 1-5 (cdrom).
[131] J. Choi, “On the energy delay tradeoff of HARQ-IR in wireless multiuser systems,” in Proc. IEEE ICC 2012, Ottawa, June 2012, 1-5 (cdrom).
[130] D. To, T. Do, and J. Choi, “Energy efficient distributed beamforming with sensor selection in wireless sensor networks,” in Proc. IEEE VTC Spring 2012, Yokohama, Japan, May 2012.
[129] J. Choi and J. Ha, “Iterative distributed amplitude optimization for distributed detection in wireless sensor networks,” in Proc. IEEE VTC Spring 2012, Yokohama, Japan, May 2012.
[128] D. Wang, L. Bai, C. Chen, W. Guan, Y. Jin, and J. Choi, “An optimal multiuser beamforming scheme based on the worst SNR in cellular systems,” in Proc. IEEE VTC Spring 2012, Yokohama, Japan, May 2012.
[127] J. Choi and D. To, “Energy efficiency of HARQ-IR for two-way relay systems with network coding,” (Invited Paper) in Proc. European Wireless 2012, Poznan, Poland, April 2012.
[126] J. Choi and J. Ha, “Orthogonal beamforming for overlay mode of OFDMA-based rural broadband wireless access,” in Proc. IEEE WCNC 2012, Paris, France, April 2012.

 

2011

[125] J. Choi, H. Lee, and C.-C. Lim, “Consensus-based distributed detection with mitigating outliers for wireless sensor networks,” in Proc. ISSNIP 2011, Adelaide, Australia, December 2011, pp. 1-6 (cdrom).
[124] J. Choi, “A sequential detection approach for approximate MAP detection in MIMO systems,” in Proc. IEEE Globecom 2011, Houston, December 2011, pp. 1-5 (cdrom).
[123] H. Jeon, J. Choi, S. McLaughlin, and J. Ha, “Channel aware encryption and decision fusion for wireless sensor networks,” in Proc. IEEE WIFS 2011, Foz do Iguacu, November–December 2011, pp. 1-5 (cdrom).
[122] J. Choi and S. Choi, “Downlink multichannel sharing and joint detection for cell-edge users,” in Proc. ISAP 2011, Jeju, Korea, October 2011.
[121] M. Hyun, W. T. Song, J. Choi, S. Yoo, and J. Ha, “Code design for type-I wiretap channel,” in Proc. 49th Annual Allerton Conference, Allerton, IL, USA, September 2011.
[120] J. Choi and J. Ha, “MMSE-based distributed beamforming in cooperative relay networks,” in Proc. IEEE MWSCAS 2011, Seoul, Korea, August 2011.
[119] D. To, H. X. Nguyen, J. Choi, and S. Choi, “Power allocation for multiband coded OFDM systems with limited feedback,” in Proc. IEEE VTC Fall 2011, San Francisco, Sep. 2011, pp. 1-5 (cdrom).
[118] J. Choi, “Opportunistic beamforming with single beamforming virtual antenna arrays,” in Proc. IEEE ICC 2011, Kyoto, June 2011, 1-5 (cdrom).
[117] Q.-T. Vien, H. X. Huan, J. Choi, B. Stewart, and H. Tianfield, “Network coding-based block ACK for wireless relay networks,” in Proc. IEEE VTC Spring 2011, Budapest, Hungary, May 2011, pp. 1-5 (cdrom).

 

2010

[116] H. Jeon, J. Choi, H. Lee, and J. Ha, “Channel-aware energy efficient transmission strategies for large wireless sensor networks,” in Proc. IEEE Globecom 2010, Miami, December 2010, pp. 1-5 (cdrom).
[115] L. Bai, C. Chen, C. Ling, and J. Choi, “Updated basis lattice reduction based sequential user selection for multiuser MIMO systems,” in Proc. IEEE Globecom 2010, Miami, December 2010, pp. 1-5 (cdrom).
[114] C. Chen, L. Bai, B. Wu, D. To, and J. Choi, “Outage throughput maximization for OFDMA systems with feedback channel capacity constraints,” in Proc. IEEE Globecom 2010, Miami, December 2010, pp. 1-5 (cdrom).
[113] J. Choi, “On the energy efficiency of wireless sensor networks with local fusion centers,” in Proc. Sensor Signal Processing for Defence (SSPD) 2010, London, UK, September 2010.
[112] H. Jeon, J. Ha, and J. Choi, “Secure type-based multiple access: transmission strategy and analysis for perfect secrecy,” in Proc. IEEE ITW 2010, Dublin, Ireland, August-September 2010.
[111] D. To and J. Choi, “Reduced-state decoding in two-way relay networks with physical layer network coding,” in Proc. IEEE ITW 2010, Dublin, Ireland, August-September 2010.
[110] T. To, D. To, X. Wang, and J. Choi, “A reservation-type protocol for channel-aware ALOHA,” in Proc. IEEE PIMRC 2010, Istanbul, Turkey, September 2010.
[109] J. Choi and J. Ha, “On the asymptotic performance of TBMA with multichannel diversity over fading channels,” PIMRC 2010, Istanbul, Turkey, September 2010.
[108] J. Choi and D. To, “On learning for fusion over fading channels in wireless sensor networks,” in Proc. IEEE ISWPC 2010, Modena, Italy, May 2010.
[107] L. Sivridis, J. Choi, and Y. Li, “A cost based resource allocation policy for multiservice mobile WiMAX networks,” in Proc. IEEE ISWPC 2010, Modena, Italy, May 2010.
[106] D. To and J. Choi, “Parameterized EXIT function for demapper and symbol mapping design,” in Proc. IEEE ISWPC 2010, Modena, Italy, May 2010.
[105] C. Chen, H. Xiang, L. Bai, J. He, and J. Choi, “On the capacity improvement of multicast throughput in wireless ad hoc networks with physical-layer network coding,” in Proc. IEEE IWCMC 2010, France, June – July 2010.
[104] L. Bai, C. Chen, and J. Choi, “Lattice reduction aided detection for underdetermined MIMO systems: a prevoting cancellation,” in Proc. IEEE VTC Spring 2010, Taipei, Taiwan, May 2010.
[103] J. Choi and F. Adachi, “Impact of user selection criteria on performance of MIMO detectors in multiuser systems,” in Proc. IEEE VTC Spring 2010, Taipei, Taiwan, May 2010.
[102] J. Choi, “Modulation division multiplexing for multiuser diversity beamforming,” in Proc. IEEE VTC Spring 2010, Taipei, Taiwan, May 2010.

 

2009

[101] J. Choi and H. Nguyen, “Low complexity Sbased MIMO detection with list generation in the LR domain,” in Proc. IEEE Globecom 2009, Hawaii, November-December 2009, pp. 1-6 (cdrom).
[100] H. Jeon, N. Kim, J. Choi, H. Lee, and J. Ha, “On multiuser secrecy rate in flat fading channel,” in Proc. IEEE MILCOM 2009, Boston, October 2009, pp. 1-7 (cdrom).
[099] J. Choi and S. R. Kim, “Feedback based cooperative transmission for multichannel systems,” in Proc. IEEE PIMRC 2009, Tokyo, September 2009, pp. 3104-3108.
[098] J. Choi, “On the achievable rate of layered MIMO systems with MMSE-SIC receiver,” in Proc. International Sym. Wireless Personal Multimedia Commun., Sendai, Japan, September 2009 (Best Paper Award).
[097] H. Lee, C.-C. Lim, and J. Choi, “Multichannel outage-aware MAC protocols for wireless networks,” in Proc. IEEE ICIEA 2009, Xian, China, May 2009, pp. 1345-1350.

 

1992 ~ 2008

There are 96 papers in international conference proceedings.