Browsing by Author "Dong, Zhicheng"
Now showing items 1-9 of 9
-
Conditional Power and Rate Adaptation for MQAM/OFDM Systems Under CFO With Perfect and Imperfect Channel Estimation Errors
Dong, Zhicheng; Fan, Pingzhi; Panayırcı, Erdal; Lei, Xianfu (IEEE-INST Electrical Electronics Engineers Inc, 2015)In this paper a new conditional power and rate adaptation scheme for orthogonal frequency-division multiplexing (OFDM) systems is proposed in the presence of carrier frequency offset (CFO) with perfect and imperfect channel ... -
Effect of power and rate adaptation on the spectral efficiency of MQAM/OFDM system under very fast fading channels
Dong, Zhicheng; Fan, Pingzhi; Panayırcı, Erdal; Mathiopoulos, P. Takis (Springer International Publishing Ag, 2012)In this article the effect of power and rate adaptation on the spectral efficiency of orthogonal frequency division multiplexing (OFDM) systems using M-ary quadrature amplitude modulation (MQAM) is investigated in the ... -
An Efficient SAGE-based Data Detection Algorithm for OFDM Systems in the Presence of Very Fast Fading Channels
Dong, Zhicheng; Fan, Pingzhi; Panayırcı, Erdal (IEEE, 2013)In this paper an iterative and computationally efficient data detection algorithm is proposed based on the space alternating generalized expectation maximization (SAGE) technique for orthogonal division multiplexing (OFDM) ... -
Energy-Efficient Resources Allocation with Millimeter-Wave Massive MIMO in Ultra Dense HetNets by SWIPT and CoMP
Yonghong Dai, Bin Li,; Dong, Zhicheng; Panayırcı, Erdal; Jiang, Huilin; Jiang, Hao (Institute of Electrical and Electronics Engineers Inc., 2021)Ultra-dense HetNets (UDN)-based Millimeter-Wave (mmWave) massive MIMO is considered a promising technology for 5th generation (5G) wireless communications systems since it can offer massively available bandwidth and improve ... -
An Improved Adaptive Subspace Tracking Algorithm Based on Approximated Power Iteration
Wu, Qiang; Zheng, Jian-Sheng; Dong, Zhicheng; Panayırcı, Erdal; Wu, Zhi-Qiang; Ren, Qingnuobu (IEEE-INST Electrical Electronics Engineers Inc, 2018)A subspace tracking technique has drawn a lot of attentions due to its wide applications. The main objective of this approach is to estimate signal or noise subspace basis for the sample covariance matrix. In this paper ... -
Partial Power and Rate Adaptation for MQAM/OFDM Systems under CFO
Dong, Zhicheng; Fan, Pingzhi; Panayırcı, Erdal; Lei, Xianfu (IEEE, 2014)In this paper a new partial power and rate adaptation scheme for orthogonal frequency division multiplexing (OFDM) systems is proposed in the presence of carrier frequency offset (CFO). The conventional adaptive scheme is ... -
Power and Rate Adaptation Based on CSI and Velocity Variation for OFDM Systems Under Doubly Selective Fading Channels
Dong, Zhicheng; Fan, Pingzhi; Lei, Xianfu; Panayırcı, Erdal (IEEE-INST Electrical Electronics Engineers Inc, 2016)In this paper a novel joint continuous power and rate adaptation scheme is proposed fordoubly selective fading channels in orthogonal frequency division multiplexing (OFDM) systems based on terminal velocity and perfect ... -
Power and rate adaptation for MQAM/OFDM systems under fast fading channels
Dong, Zhicheng; Fan, Pingzhi; Zhou, Weixi; Panayırcı, Erdal (IEEE, 2012)In this paper the effect of power and rate adaptation on the spectral efficiency of orthogonal frequency division multiplexing (OFDM) systems using M-ary quadrature amplitude modulation (MQAM) is investigated in the presence ... -
Research on Power Distribution Method of OFDM System with Hybrid Energy Supply under Fast Fading Channel
Liu, Yipeng; Dong, Zhicheng; Xiao, Wei; Panayırcı, Erdal (IEEE, 2021)An adaptive power allocation by minimizing grid power consumption for the Orthogonal Frequency Division Multiplexing (OFDM) system with the hybrid energy supply under a fast fading channel is proposed in this paper. To ...