60-GHz Millimeter-Wave Radio: Principle, Technology, and New Results
- N. Guo, R. Qiu, S. Mo, Kazuaki Takahashi
- PhysicsEURASIP Journal on Wireless Communications and…
The worldwide opening of a massive amount of unlicensed spectra around 60 GHz has triggered great interest in developing affordable 60-GHz radios, andpects addressed in this paper include global regulatory and standardization, justification of using the 60- GHz bands,60-GHz consumer electronics applications, radio system concept, 60-hz propagation and antennas, and key issues in system design.
Improved autocorrelation demodulation receivers based on multiple-symbol detection for UWB communications
Evaluation of the proposed ACD scheme shows that the proposed scheme offers several dB improvement in performances with only a moderate increase in complexity.
Robust Sparse Recovery in Impulsive Noise via p-1 Optimization
- Fei Wen, Peilin Liu, Yipeng Liu, R. Qiu, Wenxian Yu
- Computer Science
A robust formulation for sparse recovery using the generalized p-norm with 0 ≤ p < 2 as the metric for the residual error is proposed and compared with some state-of-the-art robust algorithms via numerical simulations to show its improved performance in highly impulsive noise.
Cognitive Radio Network for the Smart Grid: Experimental System Architecture, Control Algorithms, Security, and Microgrid Testbed
- R. Qiu, Zhen Hu, Gang Zheng
- EngineeringIEEE Transactions on Smart Grid
- 4 August 2011
The concept of independent component analysis in combination with the robust principal component analysis technique is employed to recover data from the simultaneous smart meter wireless transmissions in the presence of strong wideband interference.
A Big Data Architecture Design for Smart Grids Based on Random Matrix Theory
- Xing He, Q. Ai, R. Qiu, Wentao Huang, Longjian Piao, Haichun Liu
- Computer Science, EngineeringIEEE Transactions on Smart Grid
- 29 January 2015
This paper, using random matrix theory (RMT), motivates data-driven tools to perceive the complex grids in high-dimension; meanwhile, an architecture with detailed procedures is proposed, the first attempt to apply big data technology into smart grids.
Error performance of pulse-based ultra-wideband MIMO systems over indoor wireless channels
- Huaping Liu, R. Qiu, Z. Tian
- Business, Computer ScienceIEEE Transactions on Wireless Communications
- 1 November 2005
Analytical error rate expression of an (N,M,L) system over a pragmatic indoor log-normal fading channel is derived, which captures the diversity order by a single degree-of-freedom parameter.
Ultra-Wideband Wireless Communications and Networks: Shen/Ultra-Wideband Wireless Communications and Networks
- X. Shen, M. Guizani, R. Qiu, T. Le-Ngoc
- 31 May 2006
Ultra-wideband for multiple access communications
- R. Qiu, Huaping Liu, Xuemin Shen
- Business, Computer ScienceIEEE Communications Magazine
- 1 February 2005
This article provides a comprehensive review of UWB multiple access and modulation schemes, and their comparison with narrowband radios, and explores various suboptimal low-complexity receiving schemes.
Time Reversal With MISO for Ultrawideband Communications: Experimental Results
- R. Qiu, Chenming Zhou, N. Guo, J.Q. Zhang
- BusinessIEEE Antennas and Wireless Propagation Letters
- 26 June 2006
Two basic problems are investigated experimentally using short UWB radio pulses (nanosecond duration) and the reciprocity of realistic channels, the cornerstone of TR, is demonstrated perhaps for the first time in electromagnetics.
A study of the ultra-wideband wireless propagation channel and optimum UWB receiver design
- R. Qiu
- BusinessIEEE J. Sel. Areas Commun.
- 16 December 2002
A new approach on UWB propagation modeling and optimum design of correlation receivers is presented, which addresses a crucial point in ultra-wideband radio wave propagation, which is the spatial-temporal resolution of scattering objects into multiple frequency-dependent scattering centers.