Results 11 to 20 of about 127 (105)

Low Complexity Iterative Receiver With Lossless Information Transfer for Non-Binary LDPC Coded PDMA System

IEEE Access, 2020
In this work, we first proposed a non-binary low-density parity-check (NB-LDPC) coded pattern division multiple access (PDMA) scheme with the order of the Galois field equal to the size of modulation alphabet which can avoid the symbol-to-bit or bit-to ...
Hanqing Ding, Qingqing Liu, Zihang Ding, Jin Xu, Zhe Zhang, Weihua Liu, Xueyan Chen   +6 more
doaj   +1 more source

An Uplink Transmission Scheme for Pattern Division Multiple Access Based on DFT Spread Generalized Multi-Carrier Modulation

IEEE Access, 2018
In order to meet the requirements of high system throughput, massive connectivity, and asynchronous transmission for 5G and beyond, non-orthogonal transmission techniques, including modulation techniques and multiple access techniques, have attracted a ...
Xin Bian, Jie Tang, Hong Wang, Mingqi Li, Rongfang Song   +4 more
doaj   +1 more source

Link Performance Estimation Technique for PDMA Uplink System

IEEE Access, 2017
Pattern division multiple access (PDMA) is a promising non-orthogonal multiple access scheme for the fifth generation mobile communication system. Link performance estimation technique is the key to ensure accurate performance evaluation of the PDMA ...
Bin Ren, Yingmin Wang, Shaoli Kang, Xiaoming Dai, Xinwei Yue, Wanwei Tang, Kai Niu   +6 more
doaj   +1 more source

Investigation on Evolving Single-Carrier NOMA Into Multi-Carrier NOMA in 5G

IEEE Access, 2018
Non-orthogonal multiple access (NOMA) is one promising technology, which provides high system capacity, low latency, and massive connectivity, to address several challenges in the fifth-generation wireless systems. In this paper, we first reveal that the
Jie Zeng, Tiejun Lv, Ren Ping Liu, Xin Su, Mingyao Peng, Chang Wang, Jiajia Mei   +6 more
doaj   +1 more source

Optimized Low Density Superposition Modulation for 5G Mobile Multimedia Wireless Networks

IEEE Access, 2019
The explosive growth of mobile multimedia services and applications are increasing the demand of access ability for the recent 5G networks. Non-orthogonal multiple access (NOMA) techniques have been recently proposed for 5G to improve access efficiency ...
Kun Lu, Chengxin Jiang
doaj   +1 more source

A Deep Learning-Based Approach to Power Minimization in Multi-Carrier NOMA With SWIPT

IEEE Access, 2019
Simultaneous wireless information and power transfer (SWIPT) and multi-carrier non-orthogonal multiple access (MC-NOMA) are promising technologies for future fifth generation and beyond wireless networks due to their potential capabilities in energy ...
Jingci Luo, Jie Tang, Daniel K. C. So, Gaojie Chen, Kanapathippillai Cumanan, Jonathon A. Chambers   +5 more
doaj   +1 more source

Fairness-aware Joint Pattern and Power Design for Downlink PDMA Systems

Journal of Telecommunications and Information Technology
Pattern division multiple access (PDMA) is recognized as a promising non-orthogonal multiple access technique for overloaded wireless systems, capable of being used for multiplexing multiple users over a limited set of resources.
Farhad E. Mahmood
doaj   +1 more source

Massively Concurrent Non-Orthogonal Multiple Access for 5G Networks and Beyond

IEEE Access, 2019
We propose a new signal spreading-based non-orthogonal multiple access (NOMA) schemes that exploits the frame-theoretic design principles to enable the efficient concurrence of multiple users in both downlink (DL) and uplink (UL).
Razvan-Andrei Stoica, Giuseppe Thadeu Freitas De Abreu, Takanori Hara, Koji Ishibashi   +3 more
doaj   +1 more source

Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios, Léon Chiriatti, Simon Poppinga, Thomas Speck, Vincent Le Houérou   +4 more
wiley   +1 more source

Lead‐free halide perovskites for efficient light‐emitting devices

FlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen, Kefan Meng, Yiqi Zhao, Chaoran Zhou, Jiaye Shu, Di Zhang, Chengqian Cao, Wanxin Chen, Yefeng Zhou, Weihua Ning   +9 more
wiley   +1 more source