Results 11 to 20 of about 10,290,974 (193)

Decoupling Channel Estimation for FDD Massive MIMO Systems Utilizing Joint Sparsity

IEEE Access, 2020
Effective channel estimation for massive multiple-input-multiple-output (MIMO) systems based on frequency division duplex (FDD) protocol is a crucial problem.
Xiangyu Yan, Li Chen, Huarui Yin, Weidong Wang   +3 more
doaj   +1 more source

Exploring the design applications of key emerging materials from natural sciences through a design ideation workshop [PDF]

, 2023
10th Congress of the International Association of Societies of Design Research (IASDR 2023) 9-13 October 2023, Milan, Italy202405 bcchVersion of ...
Wang, X, Tufail, M, Leung, Sai Yin, Park, Hyunyim, Tian, A, Uzma, S, Kim, KM, Kim, KwanMyung, Wang, Xinyi, Tufail, Muhammad, Li, X, Tian, Aichu, Leung, SY, Park, H, Li, Xinye, Uzma, Sahr   +15 more
core   +1 more source

Spectrum-Efficient Distributed Compressed Sensing Based Channel Estimation for OFDM Systems Over Doubly Selective Channels

IEEE Access, 2019
In this paper, we deal with channel estimation (CE) for high-mobility orthogonal frequency division multiplexing (OFDM) systems. To make the numerous (unknown) estimation for the high-mobility OFDM systems practicable, the channels are assumed to be time-
Anthony Ngozichukwuka Uwaechia, Nor Muzlifah Mahyuddin   +1 more
doaj   +1 more source

Near-Optimal Pilot Signal Design for FDD Massive MIMO System: An Energy-Efficient Perspective

IEEE Access, 2018
This paper investigates the pilot signal design for a massive multiple-input multiple-out (MIMO) frequency division duplexing downlink system by taking the channel spatial correlation into account.
Yi Wang, Pengge Ma, Rui Zhao, Yongming Huang, Chunguo Li, Jun Zhu, Kaizhi Huang, Bing Wang   +7 more
doaj   +1 more source

Joint Mutual Coherence and Total Coherence Pilot Design for OFDM Channel Estimation

IEEE Access, 2019
Existing works design the pilot based on the mutual coherence criterion or total coherence criterion alone. However, using the mutual coherence criterion or total coherence criterion alone to design the pilot will yield the sensing matrix which ...
Shenyang Xiao, Zhigang Jin, Ye Chen, Yun Li, Yishan Su   +4 more
doaj   +1 more source

Glide performance analysis of underwater glider with sweep wings inspired by swift

Frontiers in Marine Science, 2022
Underwater glider (UG) is one of the most promising autonomous observation platforms for long-term ocean observation, which can glide through seawater columns by adjusting its buoyancy and attitude. Hydrodynamic shape, especially the wing parameters, has
Yanhui Wang, Yanhui Wang, Cheng Wang, Ming Yang, Ming Yang, Yan Liang, Wei Han, Shaoqiong Yang, Shaoqiong Yang   +8 more
doaj   +1 more source

Multiuser Massive MIMO Systems With Time-Offset Pilots and Successive Interference Cancellation

IEEE Access, 2019
This paper proposes time-offset pilots for a single-cell multiuser massive multiple-input multiple-output (MIMO) system and studies its performance under the minimum mean-squared error channel estimator and successive interference cancellation.
The Khai Nguyen, Ha H. Nguyen, Tien Hoa Nguyen   +2 more
doaj   +1 more source

Ocean Plankton Biomass Estimation with a Digital Holographic Underwater Glider

Journal of Marine Science and Engineering, 2022
Accurate quantitative plankton observation is significant for biogeochemistry and environmental monitoring. However, current observation equipment is mostly shipborne, and there is a lack of long-term, large-scale, and low-cost methods for plankton ...
Yingjie Wang, Lianhong Zhang, Wei Ma, Yanhui Wang, Wendong Niu, Yu Song, Weimin Wang   +6 more
doaj   +1 more source

Semi-Blind Channel Estimation Relying on Optimum Pilots Designed for Multi-Cell Large-Scale MIMO Systems

IEEE Access, 2016
Channel estimation in the presence of pilot contamination-induced inter-cell interference (ICI) is a major challenge in large-scale multiple-input multiple-output (LS-MIMO) systems.
Tiejun Lv, Shaoshi Yang, Hui Gao
doaj   +1 more source

Tacit Learning in an Extended Interior Design Studio [PDF]

, 2019
5th DRS Learn X Design International Conference for Design Education Researchers: Insider Knowledge, 9-12 July 2019, METU, Ankara202403 bckwVersion of RecordSelf ...
Venkatesh, A, Ma, H, Henry Ma, Venkatesh, Aruna, Aruna Venkatesh, Ma, Henry   +5 more
core   +1 more source