Results 21 to 30 of about 24,612 (214)

Lower bounds on the estimation performance in low complexity quantize-and-forward cooperative systems [PDF]

open access: yes, 2015
Cooperative communication can effectively mitigate the effects of multipath propagation fading by using relay channels to provide spatial diversity. A relaying scheme suitable for half-duplex devices is the quantize-and-forward (QF) protocol, in which ...
Aerts, Nico   +2 more
core   +2 more sources

The modified cramer-rao bound for channel estimation in quantize-and-forward cooperative systems [PDF]

open access: yes, 2013
The quantize-and-forward (QF) cooperative protocol can effectively be used to combat fading in systems using half-duplex relay terminals. While the outage behavior of the QF protocol has been extensively investigated, few research has been performed on ...
Avram, Iancu, Moeneclaey, Marc
core   +2 more sources

On stability of generalized (affine) phase retrieval in the complex case

open access: yesJournal of Inequalities and Applications, 2019
In this paper, we discuss the stability of generalized phase retrieval and generalized affine phase retrieval in the complex case. By the realification method, we obtain the bi-Lipschitz property in the absence of noise case and Cramer–Rao lower bound ...
Zhitao Zhuang
doaj   +1 more source

Recursive joint Cramér‐Rao lower bound for parametric systems with two‐adjacent‐states dependent measurements

open access: yesIET Signal Processing, 2021
Joint Cramér‐Rao lower bound (JCRLB) is very useful for the performance evaluation of joint state and parameter estimation (JSPE) of non‐linear systems, in which the current measurement only depends on the current state.
Xianqing Li   +2 more
doaj   +1 more source

Localization and time synchronization in wireless sensor networks: a unified approach [PDF]

open access: yes, 2008
Localization and synchronization are two important issues in communication systems and wireless sensor networks. These two problems are addressed in many applications, and share many aspects in common.
Wu, YC, Zheng, J
core   +1 more source

Wideband DOA Estimation via Sparse Bayesian Learning over a Khatri-Rao Dictionary [PDF]

open access: yes, 2015
This paper deals with the wideband direction-of-arrival (DOA) estimation by exploiting the multiple measurement vectors (MMV) based sparse Bayesian learning (SBL) framework.
Naichang Yuan, Ning Tai, Yujian Pan
core   +2 more sources

Information-theoretic analysis of Hierarchical Temporal Memory-Spatial Pooler algorithm with a new upper bound for the standard information bottleneck method

open access: yesFrontiers in Computational Neuroscience, 2023
Hierarchical Temporal Memory (HTM) is an unsupervised algorithm in machine learning. It models several fundamental neocortical computational principles.
Shiva Sanati   +2 more
doaj   +1 more source

Bounds on Distance Estimation via Diffusive Molecular Communication

open access: yes, 2014
This paper studies distance estimation for diffusive molecular communication. The Cramer-Rao lower bound on the variance of the distance estimation error is derived.
Cheung, Karen C.   +2 more
core   +1 more source

Spectral unmixing of Multispectral Lidar signals [PDF]

open access: yes, 2015
In this paper, we present a Bayesian approach for spectral unmixing of multispectral Lidar (MSL) data associated with surface reflection from targeted surfaces composed of several known materials.
Altmann, Yoann   +2 more
core   +2 more sources

Comments on "Timing Estimation and Resynchronization for Amplify-and-Forward Communication Systems [PDF]

open access: yes, 2011
This correspondence first shows that the Cramer- Rao lower bound (CRLB) derivations in the above paper are incorrect. In addition, contrary to the claims in the above paper, the assumptions of perfect timing offset estimation and matched-filtering at the
Blostein, Steven D., Mehrpouyan, Hani
core   +1 more source

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