The intersymbol interference channel: lower bounds on capacity and channel precoding loss

1996 ◽  
Vol 42 (5) ◽  
pp. 1388-1404 ◽  
Author(s):  
S. Shamai ◽  
R. Laroia
Keyword(s):  
Lower Bounds ◽  
Intersymbol Interference ◽  
Interference Channel

scholarly journals Leveraging discrete modulation and liquid metal antennas for interference reduction

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Mirza Uzair Baig ◽  
Kareem S. Elassy ◽  
Anders Høst-Madsen ◽  
Aaron T. Ohta ◽  
Wayne A. Shiroma ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Mutual Information ◽  
Lower Bounds ◽  
Recent Progress ◽  
Reconfigurable Antenna ◽  
Interference Channel ◽  
Interference Reduction

AbstractRecent progress in the understanding of the behavior of the interference channel has led to valuable insights: first, discrete signaling has been discovered to have tangible benefits in the presence of interference, especially when one does not wish to decode the interfering signal, i.e., the interference is treated as noise, and second, the capacity of the interference channel as a function of the interference link gains is now understood to be highly irregular, i.e., non-monotonic and discontinuous. This work addresses these two issues in an integrated and interdisciplinary manner: it utilizes discrete signaling to approach the capacity of the interference channel by developing lower bounds on the mutual information under discrete modulation and treating interference as noise, subject to an outage set, and addresses the issue of sensitivity to link gains with a liquid metal reconfigurable antenna to avoid the aforementioned outage sets. Simulations illustrate the effectiveness of our approach.

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