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14 papers · 2 filters
Energy Efficient Resource Allocation in Machine-to-Machine Communications with Multiple Access and Energy Harvesting for IoT
Zhaohui Yang, Wei Xu, Yijin Pan +2
This paper studies energy efficient resource allocation for a machine-to-machine (M2M) enabled cellular network with non-linear energy harvesting, especially focusing on two differ…
Performance Analysis for Massive MIMO Downlink with Low Complexity Approximate Zero-Forcing Precoding
Cheng Zhang, Yindi Jing, Yongming Huang +1
Zero-forcing (ZF) precoding plays an important role for massive MIMO downlink due to its near optimal performance. However, the high computation cost of the involved matrix inversi…
Resource Allocation for D2D Communications Underlaying a NOMA-Based Cellular Network
Yijin Pan, Cunhua Pan, Zhaohui Yang +1
This letter investigates the power control and channel assignment problem in device-to-device (D2D) communications underlaying a non-orthogonal multiple access (NOMA) cellular netw…
Spectral and Energy Efficiency of Cell-Free Massive MIMO Systems with Hardware Impairments
Jiayi Zhang, Yinghua Wei, Emil Björnson +2
Cell-free massive multiple-input multiple-output (MIMO), with a large number of distributed access points (APs) that jointly serve the user equipments (UEs), is a promising network…
Spectral Efficiency of Multipair Massive MIMO Two-Way Relaying with Hardware Impairments
Jiayi Zhang, Xipeng Xue, Emil Björnson +2
We consider a multipair massive multiple-input multiple-output (MIMO) two-way relaying system, where multiple pairs of single-antenna devices exchange data with the help of a relay…
Distributed Weighted Sum-Rate Maximization in Multicell MU-MIMO OFDMA Downlink
Mirza Golam Kibria, Hidekazu Murata, Jun Zheng
This paper considers distributed linear beamforming in downlink multicell multiuser orthogonal frequency-division multiple access networks. A fast convergent solution maximizing th…