Secondary Transceiver Design in the Presence of Frequency Offset between OFDM-Based Primary and Secondary Systems. - Zhikun Xu; Chenyang Yang 001 (ICC, 2010)

Secondary Transceiver Design in the Presence of Frequency Offset between Primary and Secondary Systems. - Zhikun Xu; Chenyang Yang 001 (IEEE Trans. Wirel. Commun., 2010)

Energy-Efficient Power Allocation between Pilots and Data Symbols in Downlink OFDMA Systems. - Zhikun Xu; Chenyang Yang 001; Geoffrey Ye Li; Shunqing Zhang; Yan Chen 010; Shugong Xu (GLOBECOM, 2011)

Optimal Threshold Design for FFR Schemes in Multi-Cell OFDMA Networks. - Zhikun Xu; Geoffrey Ye Li; Chenyang Yang 001 (ICC, 2011)

Energy-Efficient MIMO-OFDMA Systems Based on Switching off RF Chains. - Zhikun Xu; Chenyang Yang 001; Geoffrey Ye Li; Shunqing Zhang; Yan Chen 010; Shugong Xu (VTC Fall, 2011)

Energy-efficient wireless communications: tutorial, survey, and open issues. - Geoffrey Ye Li; Zhikun Xu; Cong Xiong; Chenyang Yang 001; Shunqing Zhang; Yan Chen 010; Shugong Xu (IEEE Wirel. Commun., 2011)

Energy-efficient configuration of frequency resources in multi-cell MIMO-OFDM networks. - Changyang She; Zhikun Xu; Chenyang Yang 001; Shengqian Han; Chengjun Sun; Qi Wu (PIMRC, 2012)

Energy-Efficient Power Allocation for Pilots in Training-Based Downlink OFDMA Systems. - Zhikun Xu; Geoffrey Ye Li; Chenyang Yang 001; Shunqing Zhang; Yan Chen 010; Shugong Xu (IEEE Trans. Commun., 2012)

Throughput and Optimal Threshold for FFR Schemes in OFDMA Cellular Networks. - Zhikun Xu; Geoffrey Ye Li; Chenyang Yang 001; Xiaolong Zhu (IEEE Trans. Wirel. Commun., 2012)

Energy-efficient downlink transmission with base station closing in small cell networks. - Liyan Su; Chenyang Yang 001; Zhikun Xu; Andreas F. Molisch (ICASSP, 2013)

Energy-efficient cooperative transmission in heterogeneous networks. - Zhikun Xu; Chenyang Yang 001; Geoffrey Ye Li; Yalin Liu; Shugong Xu (WCNC, 2013)

Energy-Efficient Configuration of Spatial and Frequency Resources in MIMO-OFDMA Systems. - Zhikun Xu; Chenyang Yang 001; Geoffrey Ye Li; Shunqing Zhang; Yan Chen 010; Shugong Xu (IEEE Trans. Commun., 2013)

Work in progress paper: Network deployment and operation based on spatial and temporal traffic model. - Jinwei He; Zhikun Xu; Yami Chen; Zhengang Pan; Chih-Lin I (ChinaCom, 2014)

Energy-efficient configuration of antennas and users in the downlink MIMO system. - Yue Ning 004; Jiancun Fan; Jianguo Deng; Zhikun Xu (GlobalSIP, 2014)

Full duplex: Coming into reality in 2020? - Shuangfeng Han; Chih-Lin I; Zhikun Xu; Chengkang Pan; Zhengang Pan (GLOBECOM, 2014)

Large scale antenna system with hybrid digital and analog beamforming structure. - Shuangfeng Han; Chih-Lin I; Corbett Rowell; Zhikun Xu; Sen Wang 005; Zhengang Pan (ICC Workshops, 2014)

EE-SE relationship for large-scale antenna systems. - Zhikun Xu; Shuangfeng Han; Zhengang Pan; Chih-Lin I (ICC Workshops, 2014)

When accumulative information is beneficial for maximizing energy efficiency? - Chuting Yao; Zhikun Xu; Tingting Liu 001; Chenyang Yang 001 (ICC, 2014)

Analysis on the optimal system parameters in massive MIMO systems. - Sen Wang 005; Shuangfeng Han; Zhikun Xu; Chih-Lin I; Zhengang Pan (ICCC, 2014)

Fundamental properties of the EE-SE relationship. - Zhikun Xu; Zhengang Pan; Chih-Lin I (WCNC, 2014)

Energy efficient pico base station switching-on/off in heterogeneous cellular network with minimum rate requirement. - Liang Dong; Gang Wu 001; Zhikun Xu; Shaoqian Li (WCSP, 2014)

Toward green and soft: a 5G perspective. - Chih-Lin I; Corbett Rowell; Shuangfeng Han; Zhikun Xu; Gang Li; Zhengang Pan (IEEE Commun. Mag., 2014)

Green transmission technologies for balancing the energy efficiency and spectrum efficiency trade-off. - Yiqun Wu; Yan Chen 010; Jie Tang 002; Daniel K. C. So; Zhikun Xu; Chih-Lin I; Paul Ferrand; Jean-Marie Gorce; Chih-Hsuan Tang; Pei-Rong Li; Kai-Ten Feng; Li-Chun Wang 001; et al. (IEEE Commun. Mag., 2014)

Reference Signals Design for Hybrid Analog and Digital Beamforming. - Shuangfeng Han; Chih-Lin I; Zhikun Xu; Sen Wang 005 (IEEE Commun. Lett., 2014)

Energy-Efficient CoMP Precoding in Heterogeneous Networks. - Zhikun Xu; Chenyang Yang 001; Geoffrey Ye Li; Yalin Liu; Shugong Xu (IEEE Trans. Signal Process., 2014)

Evaluation of Potential Energy Efficiency Gain of 5G Wireless Networks. - Yami Chen; Zhikun Xu; Jinwei He; Zhengang Pan; Chih-Lin I; Sen Wang 005 (GLOBECOM Workshops, 2015)

Analysis of spectral and energy efficiency in ultra-dense network. - Qi Ren; Jiancun Fan; Xinmin Luo; Zhikun Xu; Yami Chen (ICC Workshops, 2015)

Alternating beamforming methods for hybrid analog and digital MIMO transmission. - Zhikun Xu; Shuangfeng Han; Zhengang Pan; Chih-Lin I (ICC, 2015)

Energy-efficient BS antenna configuration for downlink distributed MIMO system. - Jiancun Fan; Yue Ning 004; Jianguo Deng; Ying Zhang 059; Zhikun Xu (PIMRC, 2015)

Energy Efficient Base Station Deployment Scheme in Heterogeneous Cellular Network. - Qi Ren; Jiancun Fan; Xinmin Luo; Zhikun Xu; Yami Chen (VTC Spring, 2015)

Sum rate optimization for MIMO non-orthogonal multiple access systems. - Qi Sun 001; Shuangfeng Han; Zhikun Xu; Sen Wang 005; Chih-Lin I; Zhengang Pan (WCNC, 2015)

Software defined air interface: a framework of 5G air interface. - Qi Sun 001; Chih-Lin I; Shuangfeng Han; Zhikun Xu; Zhengang Pan (WCNC Workshops, 2015)

Large-scale antenna systems with hybrid analog and digital beamforming for millimeter wave 5G. - Shuangfeng Han; Chih-Lin I; Zhikun Xu; Corbett Rowell (IEEE Commun. Mag., 2015)

Performance Analysis of MU-MIMO in Downlink Cellular Networks. - Jiancun Fan; Zhikun Xu; Geoffrey Ye Li (IEEE Commun. Lett., 2015)

Is Accumulative Information Useful for Designing Energy Efficient Transmission? - Chuting Yao; Zhikun Xu; Tingting Liu 001; Chenyang Yang 001 (IEEE Trans. Commun., 2015)

Spectral- and energy-efficient analysis for multi-cell downlink MU-MIMO systems. - Jiancun Fan; Zhikun Xu; Chih-Lin I; Geoffrey Ye Li (ICC, 2016)

Hybrid full and half duplex networking. - Jinyi Huang; Kaiqiang Qi; Zhikun Xu; Chenyang Yang 001 (ICCC, 2016)

New Paradigm of 5G Wireless Internet. - Chih-Lin I; Shuangfeng Han; Zhikun Xu; Sen Wang 005; Qi Sun 001; Yami Chen (IEEE J. Sel. Areas Commun., 2016)

Dynamic programming-based pico base station sleep mode control in heterogeneous networks. - Gang Wu 001; Liang Dong; Zhenting Qin; Zhikun Xu (Int. J. Commun. Syst., 2017)

Exploiting Abstract Meaning Representation for Open-Domain Question Answering. - Cunxiang Wang; Zhikun Xu; Qipeng Guo; Xiangkun Hu; Xuefeng Bai 001; Zheng Zhang 001; Yue Zhang 004 (ACL (Findings), 2023)

Low Overhead Pilot Design for Channel Estimation in MIMO-OTFS Systems. - Qiwei Ren; Qiyishu Li; Zhikun Xu; Zhengang Pan (ICCC Workshops, 2023)

Evaluating Open-QA Evaluation. - Cunxiang Wang; Sirui Cheng; Qipeng Guo; Yuanhao Yue; Bowen Ding; Zhikun Xu; Yidong Wang; Xiangkun Hu; Zheng Zhang; Yue Zhang (NeurIPS, 2023)

Flexible Resource Allocation Scheme for Non-Overlapping Subband Full Duplex Systems. - Shengwu Wu; Shuai Zhang; Zhikun Xu; Zhengang Pan (WCSP, 2023)

Evaluating Open Question Answering Evaluation. - Cunxiang Wang; Sirui Cheng; Zhikun Xu; Bowen Ding; Yidong Wang; Yue Zhang 004 (CoRR, 2023)

V-ALPHASOCIAL: Benchmark and Self-Reflective Chain-of-Thought Generation for Visual Social Commonsense Reasoning. - Zongyu Lin; Zhikun Xu; Xiaohan Song; Yixin Wan; Xingcheng Yao; Tsung-Han Lin; Selina Song; Pranav Subbaraman; Ben Zhou; Kai-Wei Chang; Yizhou Sun (ACL (Findings), 2025)

Let LLMs Take on the Latest Challenges! A Chinese Dynamic Question Answering Benchmark. - Zhikun Xu; Yinghui Li; Ruixue Ding; Xinyu Wang 013; Boli Chen; Yong Jiang 001; Haitao Zheng 002; Wenlian Lu; Pengjun Xie; Fei Huang 002 (COLING, 2025)

ToW: Thoughts of Words Improve Reasoning in Large Language Models. - Zhikun Xu; Ming Shen; Jacob Dineen; Zhaonan Li; Xiao Ye; Shijie Lu; Aswin RRV; Chitta Baral; Ben Zhou (NAACL (Long Papers), 2025)

One Example Shown, Many Concepts Known! Counterexample-Driven Conceptual Reasoning in Mathematical LLMs. - Yinghui Li; Jiayi Kuang; Haojing Huang 001; Zhikun Xu; Xinnian Liang; Yi Yu; Wenlian Lu; Yangning Li; Xiaoyu Tan; Chao Qu; Ying Shen 001; Hai-Tao Zheng 002; et al. (CoRR, 2025)

QA-LIGN: Aligning LLMs through Constitutionally Decomposed QA. - Jacob Dineen; Aswin RRV; Qin Liu 010; Zhikun Xu; Xiao Ye; Ming Shen; Zhaonan Li; Shijie Lu; Chitta Baral; Muhao Chen 001; Ben Zhou (CoRR, 2025)

BOW: Bottlenecked Next Word Exploration. - Ming Shen; Zhikun Xu; Xiao Ye; Jacob Dineen; Ben Zhou (CoRR, 2025)

CC-LEARN: Cohort-based Consistency Learning. - Xiao Ye; Shaswat Shrivastava; Zhaonan Li; Jacob Dineen; Shijie Lu; Avneet Ahuja; Ming Shen; Zhikun Xu; Ben Zhou (CoRR, 2025)