scholarly journals Computation of the Capacity for Discrete Memoryless Channels and Sum Capacity of Multiple Access Channels with Causal Side Information at Receiver

2011 ◽  
Author(s):  
Mohammad Osmani Bojd ◽  
Assadallah Sahebalam ◽  
Ghosheh Abed Hodtani
Keyword(s):  
Multiple Access ◽  
Side Information ◽  
Sum Capacity ◽  
Multiple Access Channels ◽  
Memoryless Channels

On the Ergodic Sum-Capacity of Decentralized Multiple Access Channels

2016 ◽  
Vol 20 (5) ◽  
pp. 854-857 ◽  
Author(s):  
Nitish Mital ◽  
Kamal Singh ◽  
Sibi Raj B Pillai
Keyword(s):  
Multiple Access ◽  
Sum Capacity ◽  
Multiple Access Channels

Linear-Feedback Sum-Capacity for Gaussian Multiple Access Channels

2012 ◽  
Vol 58 (1) ◽  
pp. 224-236 ◽  
Author(s):  
Ehsan Ardestanizadeh ◽  
Michèle Wigger ◽  
Young-Han Kim ◽  
Tara Javidi
Keyword(s):  
Multiple Access ◽  
Linear Feedback ◽  
Sum Capacity ◽  
Multiple Access Channels

scholarly journals Gaussian Multiple Access Channels with One-Bit Quantizer at the Receiver

Entropy ◽  
2018 ◽  
Vol 20 (9) ◽  
pp. 686 ◽  
Author(s):  
Borzoo Rassouli ◽  
Morteza Varasteh ◽  
Deniz Gündüz
Keyword(s):  
Lower Bound ◽  
Multiple Access ◽  
Input Power ◽  
Multiple Access Channel ◽  
Capacity Region ◽  
Sum Capacity ◽  
Multiple Access Channels ◽  
Access Channel ◽  
Analogue To Digital ◽  
Time Division

The capacity region of a two-transmitter Gaussian multiple access channel (MAC) under average input power constraints is studied, when the receiver employs a zero-threshold one-bit analogue-to-digital converter (ADC). It is proven that the input distributions of the two transmitters that achieve the boundary points of the capacity region are discrete. Based on the position of a boundary point, upper bounds on the number of the mass points of the corresponding distributions are derived. Furthermore, a lower bound on the sum capacity is proposed that can be achieved by time division with power control. Finally, inspired by the numerical results, the proposed lower bound is conjectured to be tight.

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