Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Yawgeng A. Chau"'
Autor:
Yawgeng A. Chau, Karl Y.-T. Huang
Publikováno v:
International Journal of Antennas and Propagation, Vol 2012 (2012)
The second-order statistics of two correlated cascaded (double) Rayleigh fading channels are analyzed, where different relevant second-order cross-correlation functions of in-phase and quadrature components of the cascaded Rayleigh channels are deriv
Externí odkaz:
https://doaj.org/article/804f95f98b5347d291d730c9d8c8fdc5
Autor:
Yawgeng A. Chau, Yao-Hua Chen
Publikováno v:
International Journal of Antennas and Propagation, Vol 2012 (2012)
Three multibranch switch-and-stay combining (MSSC) schemes are analyzed for Rayleigh fading channels, where different decision statistics for antenna switching (i.e., switch statistic) are used. Let a and r denote the fading factor and the received b
Externí odkaz:
https://doaj.org/article/38b912268f3d46c69392193d9d4eebea
Autor:
Yawgeng A. Chau
Publikováno v:
3rd International Conference on Wireless, Intelligent and Distributed Environment for Communication ISBN: 9783030443719
The multi-head selection of clustering for Internet of Things (IoT) is proposed, and the reception performance is evaluated. Based on the signal-to-noise ratio (SNR) of cluster nodes for communication with the IoT gateway, those nodes with the top SN
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2f7917acd7968eaa9c7626b6a349ced2
https://doi.org/10.1007/978-3-030-44372-6_4
https://doi.org/10.1007/978-3-030-44372-6_4
Autor:
Yawgeng A. Chau, Mostafa Al-Harbawi
Publikováno v:
International Journal of Communication Systems. 29:488-506
Two new demodulate-and-forward schemes of multi-relay cooperative diversity with switch-and-examine relaying SER are analyzed. To reduce relay usage and enhance bandwidth efficiency, the two new cooperative diversity schemes employ a switch-based rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7fbb812102a6b4f4a8d3d702248d602
https://doi.org/10.1002/dac.2860
https://doi.org/10.1002/dac.2860
Autor:
Yawgeng A. Chau, Karl Yung-Ta Huang
Publikováno v:
Journal of the Chinese Institute of Engineers. 36:360-370
The level-crossing rate (LCR) and average fade duration (AFD) are the second-order statistics that are useful for the design of adaptive transmission and coding systems over wireless fading channels. These second-order statistics are analyzed for dua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3defe5560210cd0af60d91babf8013b
https://doi.org/10.1080/02533839.2012.730256
https://doi.org/10.1080/02533839.2012.730256
Autor:
Yawgeng A. Chau
Publikováno v:
2016 IEEE Smart Energy Grid Engineering (SEGE).
In this paper, the cooperation communication with a modified switch-and-examine relay (SER) for the advanced metering infrastructure (AMI) is addressed, where fixed-gain amplify-and-forward (AF) relay is used since it consumes less power of relay pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b1cd9fc5e656415de7ca85eda8dae2e
https://doi.org/10.1109/sege.2016.7589555
https://doi.org/10.1109/sege.2016.7589555
Autor:
Yao-Hua Chen, Yawgeng A. Chau
Publikováno v:
International Journal of Communication Systems. 26:1446-1458
SUMMARY On the basis of a mixture of the selection combining and switch-and-stay combining schemes, the enhanced switch combining (ESC) scheme is proposed for antenna diversity over multiple correlated Nakagami-m fading channels, where a switch windo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b7f62e8f1f30dc1cb599afbbd0d3c09
https://doi.org/10.1002/dac.2320
https://doi.org/10.1002/dac.2320
Autor:
Chen-Feng Chen, Yawgeng A. Chau
Publikováno v:
Journal of Circuits, Systems and Computers. 20:1037-1049
The second-order adaptive-bandwidth all-digital phase-locked loop (ADB-ADPLL) is designed and analyzed by using a new design procedure. Based on a discrete-time analogy of a continuous-time PLL (CTPLL) with the z-transform, the design criterion of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c6c1d6d89341ccdd72c76cf24ed5bcf
https://doi.org/10.1142/s0218126611007748
https://doi.org/10.1142/s0218126611007748
Autor:
Yao-Hua Chen, Yawgeng A Chau
Publikováno v:
IEEE Transactions on Consumer Electronics. 56:436-440
A new form of polynomial approximations of the discrete sinusoid waveform is proposed for the design of a direct digital frequency synthesizer (DDFS). With the polynomial approximation, only square circuits are needed for the DDFS realization, which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a25f6d83c2a8819a4f01dfa847bf61b3
https://doi.org/10.1109/tce.2010.5505951
https://doi.org/10.1109/tce.2010.5505951
Autor:
Yawgeng A. Chau, Karl Yung-Ta Huang
Publikováno v:
Journal of the Chinese Institute of Engineers. 33:207-213
To evaluate the performance of antenna diversity with maximal‐ratio combining (MRC) over spatially correlated Nakagami fading channels, the average level crossing rate (LCR) and the average fade duration (AFD) of the signal envelope are derived. To
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78ec49467c4a9a9c95fec0de1c8169a3
https://doi.org/10.1080/02533839.2010.9671611
https://doi.org/10.1080/02533839.2010.9671611