Results 51 to 60 of about 2,075,015 (178)

Task Oriented Channel State Information Quantization

open access: yes2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2018
In this paper, we propose a new perspective for quantizing a signal and more specifically the channel state information (CSI). The proposed point of view is fully relevant for a receiver which has to send a quantized version of the channel state to the transmitter.
Zou, Hang, Zhang, Chao, Lasaulce, Samson
openaire   +3 more sources

On the Gaussian MIMO Relay Channel With Full Channel State Information [PDF]

open access: yesIEEE Transactions on Signal Processing, 2009
This paper addresses the problem of source and relay transmit covariance optimization on the Gaussian MIMO relay channel with full channel state information (CSI), i.e., assuming perfect knowledge of all channels. For full-duplex relaying, we show that the cut-set bound on capacity can be computed as the solution of a convex problem, thus providing a ...
Simoens S.   +3 more
openaire   +1 more source

Joint Linear Processing for an Amplify-and-Forward MIMO Relay Channel with Imperfect Channel State Information

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
The problem of jointly optimizing the source precoder, relay transceiver, and destination equalizer has been considered in this paper for a multiple-input-multiple-output (MIMO) amplify-and-forward (AF) relay channel, where the channel estimates of all ...
Vandendorpe Luc, Chalise BatuK
doaj   +2 more sources

A Comprehensive Analysis of the Achievable Channel Capacity in $\mathcal{F}$ Composite Fading Channels

open access: yesIEEE Access, 2019
The F composite fading model was recently proposed as an accurate and tractable statistical model for the characterization of the composite fading conditions encountered in realistic wireless communication scenarios.
Seong Ki Yoo   +6 more
doaj   +1 more source

Empirical Coordination with Two-Sided State Information and Correlated Source and State

open access: yes, 2015
The coordination of autonomous agents is a critical issue for decentralized communication networks. Instead of transmitting information, the agents interact in a coordinated manner in order to optimize a general objective function.
Treust, Maël Le
core   +2 more sources

Protect Sensitive Information against Channel State Information Based Attacks [PDF]

open access: yes22017 IEEE International Conference on Computational Science and Engineering (CSE) and IEEE International Conference on Embedded and Ubiquitous Computing (EUC), 2017
Channel state information (CSI) has been recently shown to be useful in performing security attacks in public WiFi environments. By analyzing how CSI is affected by the finger motions, CSI-based attacks can effectively reconstruct text-based passwords and locking patterns.
Jie Zhang   +6 more
openaire   +1 more source

Secret-key Agreement with Channel State Information at the Transmitter

open access: yes, 2010
We study the capacity of secret-key agreement over a wiretap channel with state parameters. The transmitter communicates to the legitimate receiver and the eavesdropper over a discrete memoryless wiretap channel with a memoryless state sequence.
Diggavi, Suhas   +2 more
core   +1 more source

WmFall: WiFi-based multistage fall detection with channel state information

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Traditional fall detection systems require to wear special equipment like sensors or cameras, which often brings the issues of inconvenience and privacy.
Xu Yang   +3 more
doaj   +1 more source

Robust Power Modulation for Channel State Information Exchange [PDF]

open access: yes, 2017
This contribution is on the framework of a wireless network with multiple interfering transmitter-receiver pairs. We study the case where there is no direct communication channel between the multiple transmitters and the system is completely distributed (in terms of information available and decision making). Exchanging local channel state information (
Zhang, Chao   +2 more
openaire   +2 more sources

A Rate-Splitting Approach to Fading Channels With Imperfect Channel-State Information [PDF]

open access: yesIEEE Transactions on Information Theory, 2014
As shown by M dard, the capacity of fading channels with imperfect channel-state information (CSI) can be lower-bounded by assuming a Gaussian channel input $X$ with power $P$ and by upper-bounding the conditional entropy $h(X|Y,\hat{H})$ by the entropy of a Gaussian random variable with variance equal to the linear minimum mean-square error in ...
Pastore, Adriano   +2 more
openaire   +4 more sources

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