, 2011 We report an eight-channel reconfigurable optical add-drop multiplexers(ROADMs) based on cascaded microring resonators with low tuning power and compact footprint.
Ding, Jianfeng +12 more
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Input polarization-independent multi-channel switching using cascaded long-period fiber grating and polarization-maintaining fiber [PDF]
, 2005 Novel multi-wavelength switching filters based on cascaded long-period fiber grating (LPG) and polarization-maintaining fiber (PMF) in a Sagnac loop configuration are proposed and experimentally demonstrated.
Han, Young-Geun +4 more
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Statistics of cascaded Rayleigh fading channels with arbitrary correlation [PDF]
IET Communications, 2020 Exact expressions for the probability density function (PDF) and cumulative distribution function (CDF) of cascaded Rayleigh fading channels with arbitrary correlation but not necessarily identically distributed are derived. Furthermore, the PDF and CDF of the instantaneous signal‐to‐noise ratio are obtained.
Ibrahim Ghareeb, Jamal Darwish
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Cascaded
IEEE Access, 2018 In this paper, the cascaded α - μ fading distribution is first introduced and mathematically characterized, which arises as a generalization of the cascaded Rayleigh, Weibull, and Nakagami-m fading distribution, by properly selecting fading
Long Kong +2 more
doaj +1 more source
Accurate approximation to channel distributions of cascaded RIS-aided systems with phase errors over Nakagami-m channels [PDF]
, 2023 Reconfigurable intelligent surfaces (RISs) are a promising technology foreseen to drive the development of beyond-fifth-generation (B5G) wireless networks.
Rabie, Khaled M +3 more
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Cascaded generalised-K fading channel
IET Communications, 2010 A versatile fading distribution that generalises many commonly used models for multi-path and shadow fading is the so-called generalised-K (KG) distribution. By considering the product of N independent but not necessarily identically distributed (n.i.d.) squared KG random variables (RVs), we derive exact closed-form expressions for the moment ...
Kostas Peppas 0001 +3 more
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A Novel Two-Step Channel Estimation Method for RIS-Assisted mmWave Systems
SensorsIn this work, we resolve the cascaded channel estimation problem and the reflected channel estimation problem for the reconfigurable intelligent surface (RIS)-assisted millimeter-wave (mmWave) systems. The novel two-step method contains modified multiple
Jiarun Yu
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Channel Estimation for Relay-Based M2M Two-Way Communications Using Expectation-Maximization
International Journal of Distributed Sensor Networks, 2013 The growing popularity of machine-to-machine (M2M) communications in wireless networks is driving the need to update the corresponding receiver technology based on the characteristics of M2M.
Xiaoyan Xu +4 more
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Upper bound on the capacity of a cascade of nonlinear and noisy channels [PDF]
2015 IEEE Information Theory Workshop (ITW), 2015 The main change is to define the noise as bandlimited already in (8) rather than before (15).
Gerhard Kramer +2 more
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Cascade: Channel-Aware Structured Cosparse Audio Declipper [PDF]
2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018 This work features a new algorithm, CASCADE, which leverages a structured cosparse prior across channels to address the multichannel audio declipping problem. CASCADE technique outperforms the state-of-the-art method A-SPADE applied on each channel separately in all tested settings, while retaining similar runtime.
Gaultier, Clément +2 more
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