Zobrazeno 1 - 10
of 10
pro vyhledávání: '"WeiHeng Ni"'
Publikováno v:
IEEE Access, Vol 6, Pp 16997-17009 (2018)
Massive multiple-input multiple-output (MIMO) has been regarded as one of the key technologies of fifth-generation cellular systems due to its excellent performance in spectral and energy efficiency, whose performance has also been widely studied. Ho
Externí odkaz:
https://doaj.org/article/5704e73d0c194d9399bd4bc7beb1f03c
Publikováno v:
Research in Cold & Arid Regions; Dec2023, Vol. 15 Issue 6, p288-294, 7p
Autor:
Tianchen Wang, Chenkai Zhao, Jiumei Dai, Rong Wan, Jiang Gao, Tijian Dong, Weiheng Ni, Dequan Kong
Publikováno v:
Science progress. 104(2)
Particle gradation and water content are important factors affecting shear strength of soil. However, due to chemical cementation and molecular attraction, loess particles commonly stick together forming conglomerations. Till date, the superposition
Publikováno v:
IEEE Access, Vol 6, Pp 16997-17009 (2018)
Massive multiple-input multiple-output (MIMO) has been regarded as one of the key technologies of fifth-generation cellular systems due to its excellent performance in spectral and energy efficiency, whose performance has also been widely studied. Ho
Autor:
Xiaodai Dong, Weiheng Ni
Publikováno v:
IEEE Transactions on Communications. 63:1457-1469
Energy harvesting is an increasingly attractive source of power for wireless communications devices. In this paper, we consider a point-to-point (P2P) wireless communications system, where both the practical transmitter and receiver, whose hardware c
Publikováno v:
Wireless Personal Communications. 77:2871-2888
This paper investigates cluster-based cooperative spectrum sensing issues in two-layer hierarchical cognitive radio networks with soft data fusion. We first define a two-phase reporting protocol in the paper. In the first phase, secondary users forwa
Publikováno v:
IEICE Transactions on Communications. :2923-2932
Autor:
Weiheng Ni, Xiaodai Dong
For a massive multiple-input multiple-output (MIMO) system, restricting the number of RF chains to far less than the number of antenna elements can significantly reduce the implementation cost compared to the full complexity RF chain configuration. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::521fb9a58cf225616ab4c2ac16d20b08
For practical implementation of massive multiple-input multiple-output (MIMO) systems, the hybrid processing (precoding/combining) structure is promising to reduce the high implementation cost and power consumption rendered by large number of radio f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0828049e92015af10882be8f6f7d61c
Publikováno v:
GLOBECOM
The paper investigates cluster-based Cooperative Spectrum Sensing (CSS) issues in two-layer hierarchical Cognitive Radio Networks (CRNs). Most previous studies focus on hard decision fusion under the assumption of perfect reporting channels. However,