scholarly journals Parameter Estimation of the Lognormal-Rician Channel Model Using Saddlepoint Approximation

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 152924-152931
Author(s):  
Maoke Miao ◽  
Xiaofeng Li
Keyword(s):  
Parameter Estimation ◽  
Channel Model ◽  
Saddlepoint Approximation ◽  
Rician Channel

scholarly journals Parameter Estimation of Gamma-Gamma Fading with Generalized Pointing Errors in FSO Systems

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Maoke Miao ◽  
Weiwei Cai ◽  
Xiaofeng Li
Keyword(s):  
Parameter Estimation ◽  
Mean Square Error ◽  
Goodness Of Fit ◽  
Saddlepoint Approximation ◽  
Additional Parameter ◽  
Mean Square ◽  
Pointing Errors ◽  
Estimation Scheme ◽  
Kolmogorov Smirnov ◽  
Approximate Probability

In this paper, the challenges of parameter estimation for the Gamma-Gamma turbulence channels with generalized pointing errors are addressed. The Kolmogorov-Smirnov goodness-of-fit statistical test results indicate that the approximate probability density function obtained by the saddlepoint approximation (SAP) method provides a better approximation for a larger value w z , and this means that the proposed method is more efficient for the FSO links over long distances when the transmit divergence angle at the transmitter side is fixed. Also, an additional parameter k needs to be estimated in addition to the shaping parameters α and β under the SAP method. An estimation scheme for the shaping parameters is proposed based on the SAP method. The performance of the proposed estimation is investigated by using the mean square error (MSE) and normalized mean square error (NMSE). The results indicate the proposed estimator exhibits satisfactory performance in both noiseless and noisy environments. The effects of the receiver aperture on the estimation performance are also discussed.

scholarly journals Secrecy Balancing over Two-User MISO Interference Channels with Rician Fading

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Jiqing Ni ◽  
Zesong Fei ◽  
Chengwen Xing ◽  
Di Zhao ◽  
Niwei Wang ◽  
...  
Keyword(s):  
Channel Model ◽  
Rician Fading ◽  
Interference Channels ◽  
Interference Channel ◽  
Secrecy Rate ◽  
Single Output ◽  
Multiple Input ◽  
Simulation Results ◽  
Rician Channel ◽  
Ergodic Secrecy Rate

This paper considers a 2-user multiple-input single-output (MISO) interference channel with confidential messages (IFC-CM), in which the Rician channel model is assumed. The coordinated beamforming vectors at the two transmitters have the similar parameterizations as those for perfect CSI, which could be optimized jointly and achieved by agreeing on the real parameters between the two users. Our main contribution is that a quadratic relationship between the two real-valued parameters can be derived for the Rician channel to reach the ergodic secrecy rate balancing point. Simulation results present the secrecy performance over the 2-user MISO IFC-CM scenario.

Weighted Combination of Prior and Sample Information and Parameter Estimation

Optimization ◽  
1976 ◽  
Vol 7 (5) ◽  
pp. 665-672
Author(s):  
H. Burke ◽  
C. Hennig ◽  
W H. Schmidt
Keyword(s):  
Parameter Estimation ◽  
Sample Information ◽  
Weighted Combination

Sequential accuracy in parameter estimation for population correlation coefficients.

2019 ◽  
Vol 24 (4) ◽  
pp. 492-515 ◽  
Author(s):  
Ken Kelley ◽  
Francis Bilson Darku ◽  
Bhargab Chattopadhyay
Keyword(s):  
Parameter Estimation ◽  
Correlation Coefficients ◽  
Population Correlation
Sign in / Sign up

Export Citation Format

Share Document