Complex-valued collaborative coding multiple access for fading channels

2001 ◽  
Vol 148 (5) ◽  
pp. 327 ◽  
Author(s):  
F.H. Ali ◽  
S. Soysa
1995 ◽  
Vol 31 (5) ◽  
pp. 341-342 ◽  
Author(s):  
F.H. Ali ◽  
S.A.G. Chandler ◽  
S. Soysa

Author(s):  
Yiyu Guo ◽  
Zhijin Qin ◽  
Yuanwei Liu ◽  
Naofal Al-Dhahir

Entropy ◽  
2020 ◽  
Vol 22 (9) ◽  
pp. 971
Author(s):  
A. Taufiq Asyhari ◽  
Tobias Koch ◽  
Albert Guillén i Fàbregas

We study the information rates of noncoherent, stationary, Gaussian, and multiple-input multiple-output (MIMO) flat-fading channels that are achievable with nearest neighbor decoding and pilot-aided channel estimation. In particular, we investigate the behavior of these achievable rates in the limit as the signal-to-noise ratio (SNR) tends to infinity by analyzing the capacity pre-log, which is defined as the limiting ratio of the capacity to the logarithm of the SNR as the SNR tends to infinity. We demonstrate that a scheme estimating the channel using pilot symbols and detecting the message using nearest neighbor decoding (while assuming that the channel estimation is perfect) essentially achieves the capacity pre-log of noncoherent multiple-input single-output flat-fading channels, and it essentially achieves the best so far known lower bound on the capacity pre-log of noncoherent MIMO flat-fading channels. Extending the analysis to fading multiple-access channels reveals interesting relationships between the number of antennas and Doppler bandwidth in the comparative performance of joint transmission and time division multiple-access.


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