{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

{J19} M. U. Kim and H. J. Yang*, “Min-SINR Maximization with DL SWIPT and UL WPCN in Multi-Antenna Interference Networks,” accepted, IEEE Wireless Communications Letters.

{J19} M. U. Kim and H. J. Yang*, “Min-SINR Maximization with DL SWIPT and UL WPCN in Multi-Antenna Interference Networks,” accepted, IEEE Wireless Communications Letters.   Abstract A novel multicell communication and energy harvesting scheme is proposed, in which downlink (DL) simultaneous wireless information and power transfer (SWIPT) and uplink (UL) wireless powered communication network… Continue reading