{J20} B. C. Jung, S. M. Kim, W.-Y. Shin, and H. J. Yang*, “Optimal multiuser diversity in multi-cell MIMO uplink networks: user scaling law and beamforming design,” MDPI Entropy, vol. 19, no. 393, pp. 1-14, 2017.

{J20} B. C. Jung, S. M. Kim, W.-Y. Shin, and H. J. Yang*, “Optimal multiuser diversity in multi-cell MIMO uplink networks: user scaling law and beamforming design,” MDPI Entropy, vol. 19, no. 393, pp. 1-14, 2017.   Abstact We introduce a distributed protocol to achieve multiuser diversity in a multicell multiple-input multiple-output (MIMO) uplink network, referred… Continue reading

{d04} H. Oh and H. J. Yang, “PAPR Reduction Scheme Using Selective Mapping in GFDM,” The Journal of The Korean Institute of Communication Sciences, vol. 41, no. 6, June 2016, pp. 698-706.

[d04] Hyunmyung Oh and Hyun Jong Yang. “PAPR Reduction Scheme Using Selective Mapping in GFDM” The Journal of The Korean Institute of Communication Sciences, 41.6 (2016.6): 698-706.   Abstract 기존 직교 주파수 분할 다중 방식 (orthogonal frequency division multiplexing; OFDM)에서는 최대전력 대 평균전력 비 (peak to average power ratio; PAPR)가 높아 회로 설계에 대한 어려움과, 신회 왜곡… Continue reading

{C26} J. G. Jang, W. Park, H. J. Yang, and H. G. Jwa, “Joint user association and resource allocation in small cells with limited backhaul capacity,” 50th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Nov. 2016.

Abstract   User association and resource allocation for downlink orthogonal frequency division multiplexing are jointly optimized in small cells networks with limited backhaul. In particular, per resource block resource allocation under the backhaul constraint is formulated in pursuit of maximizing proportional fairness, which leads to an integer problem requiring prohibitive computational complexity to solve. We… Continue reading

{C25} Y. Kim and H. J. Yang, “Two-stage downlink beamforming in MISO multicell networks with limited backhaul signaling,” 50th Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, Nov. 2016.

A two-stage downlink beamforming design is proposed for multicell multi-input single-output channels with limited backhaul capacity and local channel state information (CSI). The first stage is to maximize the signal-toleakage-plus-noise ratio with local CSI. Each base station (BS) then calculates the corresponding channel gains and shares them with all other BSs, which typically requires low-rate… Continue reading