scholarly journals Reliable information rate of signal-time coding for half-duplex additive white Gaussian noise relay networks

2011 ◽  
Vol 14 (1) ◽  
pp. 37-55 ◽  
Author(s):  
Ke Xiong ◽  
Pingyi Fan ◽  
Zhengding Qiu ◽  
Khaled Ben Letaief
Keyword(s):  
Gaussian Noise ◽  
Additive White Gaussian Noise ◽  
Relay Networks ◽  
White Gaussian Noise ◽  
Reliable Information ◽  
Information Rate ◽  
Half Duplex ◽  
Time Coding ◽  
Signal Time

scholarly journals On the achievable rate of bandlimited continuous-time AWGN channels with 1-bit output quantization

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Sandra Bender ◽  
Meik Dörpinghaus ◽  
Gerhard P. Fettweis
Keyword(s):  
Lower Bound ◽  
Mutual Information ◽  
Gaussian Noise ◽  
Continuous Time ◽  
Additive White Gaussian Noise ◽  
White Gaussian Noise ◽  
Information Rate ◽  
Achievable Rate ◽  
Zero Crossing ◽  
Lower Bounding

AbstractWe consider a real continuous-time bandlimited additive white Gaussian noise channel with 1-bit output quantization. On such a channel the information is carried by the temporal distances of the zero-crossings of the transmit signal. We derive an approximate lower bound on the capacity by lower-bounding the mutual information rate for input signals with exponentially distributed zero-crossing distances, sine-shaped transition waveform, and an average power constraint. The focus is on the behavior in the mid-to-high signal-to-noise ratio (SNR) regime above 10 dB. For hard bandlimited channels, the lower bound on the mutual information rate saturates with the SNR growing to infinity. For a given SNR the loss with respect to the unquantized additive white Gaussian noise channel solely depends on the ratio of channel bandwidth and the rate parameter of the exponential distribution. We complement those findings with an approximate upper bound on the mutual information rate for the specific signaling scheme. We show that both bounds are close in the SNR domain of approximately 10–20 dB.

A Signal-Time Coding Approach to Relay Networks

2009 ◽  
Author(s):  
Pingyi Fan ◽  
Khaled Ben Letaief
Keyword(s):  
Relay Networks ◽  
Time Coding ◽  
Signal Time

Performance analysis of secure communications over correlated slow-fading additive white Gaussian noise channels

2019 ◽  
Vol 32 (12) ◽  
pp. e4022 ◽  
Author(s):  
Ali Mohammad Khodadoust ◽  
Javad Khodadoust ◽  
Azeem Irshad ◽  
Shehzad Ashraf Chaudhry
Keyword(s):  
Performance Analysis ◽  
Gaussian Noise ◽  
Additive White Gaussian Noise ◽  
White Gaussian Noise ◽  
Secure Communications ◽  
Slow Fading ◽  
Gaussian Noise Channels
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