Zobrazeno 1 - 10
of 92
pro vyhledávání: '"G. Tong Zhou"'
Autor:
G. Tong Zhou, Raviv Raich
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2004, Iss 12, Pp 1831-1840 (2004)
The majority of the nonlinearity in a communication system is attributed to the power amplifier (PA) present at the final stage of the transmitter chain. In this paper, we consider Gaussian distributed input signals (such as OFDM), and PAs that can b
Externí odkaz:
https://doaj.org/article/1995c7484dda4e6097a5092785fab12f
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2010 (2010)
Orthogonal frequency division multiplexing (OFDM) has been widely adopted for high data rate wireless transmissions. By deploying multiple receiving antennas, single-input multiple-output- (SIMO-) OFDM can further enhance the performance with spatial
Externí odkaz:
https://doaj.org/article/dddbd91c7e1e4354a190c542504f626a
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2010 (2010)
Digital predistortion is an effective means to compensate for the nonlinear effects of a memoryless system. In case of a cellular transmitter, a digital baseband predistorter can mitigate the undesirable nonlinear effects along the signal chain, part
Externí odkaz:
https://doaj.org/article/36b751a199ba425bb2b500bea92aaee5
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2007 (2007)
Many modern communication signal formats, such as orthogonal frequency-division multiplexing (OFDM) and code-division multiple access (CDMA), have high peak-to-average power ratios (PARs). A signal with a high PAR not only is vulnerable in the presen
Externí odkaz:
https://doaj.org/article/3e821a4697474f9faefd50dc7ceabbdc
Publikováno v:
IEEE Photonics Technology Letters. 28:2593-2596
Recently, multiple-input multiple-output (MIMO) has been proposed in visible light communications (VLC) systems to boost the data rate by utilizing spatial multiplexing. Unlike RF systems in VLC, lighting requirements, such as dimming control, should
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::998afd475cbcddb4948d438ad218e0cc
https://doi.org/10.1109/lpt.2016.2606341
https://doi.org/10.1109/lpt.2016.2606341
Publikováno v:
IEEE Wireless Communications. 22:36-45
Many physical devices used in VLC systems exhibit nonlinear effects, which can significantly degrade the overall system performance. For example, the LED is the major source of nonlinearity. The forward current is zero unless the forward voltage exce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ede74625b44b07f14ba3ecf1fada1676
https://doi.org/10.1109/mwc.2015.7096283
https://doi.org/10.1109/mwc.2015.7096283
Publikováno v:
IEEE Transactions on Wireless Communications. 11:1733-1743
Relay networks with amplify-and-forward (AF) protocol have attracted attention due to its high performance and low implementation complexity at the relay. To collect full cooperative diversity, the AF relay networks are facing two main issues. One is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bf3179c51da9751a0f5bd0f59f19613
https://doi.org/10.1109/twc.2012.021512.110440
https://doi.org/10.1109/twc.2012.021512.110440
Publikováno v:
Signal Processing. 89:121-132
Acoustic echo is an annoying issue for many hands-free telecommunication systems. Because of room acoustics and delay in the transmission path, echoes affect the sound quality and may hamper communications. Thus, acoustic echo cancellers (AECs) are c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91c9fb5afe5d39d6765d38b35977d6d3
https://doi.org/10.1016/j.sigpro.2008.07.009
https://doi.org/10.1016/j.sigpro.2008.07.009
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 55:390-397
Impairments in the analog quadrature modulator can adversely impact the performance of a digital predistortion linearization system. In this paper, we focus on modeling and compensation of frequency-dependent gain/phase imbalance and dc offset when t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04403594b1745a904a7654a893b8cfd5
https://doi.org/10.1109/tcsi.2007.910545
https://doi.org/10.1109/tcsi.2007.910545
Publikováno v:
GlobalSIP
Recently, OFDM has been considered for VLC to boost data rates and combat inter-symbol interference. However, VLC-OFDM inherits the disadvantage of high PAPR from traditional RF systems. Unlike RF signaling, both the maximum and minimum of VLC signal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b959effd8a9e00ec6a2f0ea80bf8529d
https://doi.org/10.1109/globalsip.2015.7418414
https://doi.org/10.1109/globalsip.2015.7418414