{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

{C23} W. Park and H. J. Yang*, “On spectral efficiency of asynchronous GFDMA and SC-FDMA in frequency selective channels,” in Proc. IEEE Vehicular Technology Conference, May 2016.

[C23] W. Park and H. J. Yang*, “On spectral efficiency of asynchronous GFDMA and SC-FDMA in frequency selective channels,” in Proc. IEEE Vehicular Technology Conference (VTC), May 2016. Abstract In the fifth generation mobile communication, futuristic wireless services such as remote surgery, steaming gaming, tactile internet, and augmented reality are envisioned, which require real-time end-to-end… Continue reading

{J14} C. Li, H. J. Yang*, F. Sun, J. M. Cioffi, and L. Yang “Multi-user overhearing for cooperative two-way multi-antenna relays,” IEEE Transactions on Vehicular Technology, vol. 65, no. 5, pp. 3796 – 3802, May 2016.

C. Li, H. J. Yang*, F. Sun, J. M. Cioffi, and L. Yang “Multi-User overhearing for cooperative two-way multi-antenna relays,” IEEE Transactions on Vehicular Technology, vol. 65, no. 5, pp. 3796 – 3802, May 2016.   Abstract In this paper, an overhearing protocol is proposed for two-way cooperative multi-antenna relaying systems, where the relays equipped with multiple antennas collaborate to… Continue reading

{J15} H. J. Yang, B. C. Jung, and W.-Y. Shin, “On the degrees-of-freedom of the large-scale interfering two-way relay network,” IEEE Transactions on Vehicular Technology, vol. 65, no. 11, pp. 9442 – 9450, Nov. 2016.

H. J. Yang, B. C. Jung, and W.-Y. Shin, “On the degrees-of-freedom of the large-scale interfering two-way relay network,” IEEE Transactions on Vehicular Technology, vol. 65, no. 11, pp. 9442 – 9450, Nov. 2016.   Abstract Achievable degrees-of-freedom (DoF) of the large-scale interfering two-way relay network is investigated. The network consists of K pairs of communication nodes… Continue reading

{J16} C. Li, H. J. Yang*, F. Sun, J. M. Cioffi, and L. Yang, “Adaptive overhearing in two-way multi-antenna relay channels,” IEEE Signal Processing Letters, no. 1, vol. 23, pp. 117-120, Jan. 2016.

C. Li, H. J. Yang*, F. Sun, J. M. Cioffi, and L. Yang, “Adaptive overhearing in two-way multi-antenna relay channels,” IEEE Signal Processing Letters,  no. 1, vol. 23, pp. 117-120, Jan. 2016.   Abstract An adaptive overhearing protocol is proposed for the two-way multi-antenna-relay network composed of a base station (BS), relay, and two user equipments… Continue reading