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The capacity region of p-transmitter/q-receiver multiple-access channels with common information
Haghi, A ; Sharif University of Technology
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- Type of Document: Article
- DOI: 10.1109/TIT.2011.2168899
- Abstract:
- This paper investigates the capacity problem for some multiple-access scenarios with cooperative transmitters. First, a general Multiple-Access Channel (MAC) with common information, i.e., a scenario where p transmitters send private messages and also a common message to q receivers and each receiver decodes all of the messages, is considered. The capacity region of the discrete memoryless channel is characterized. Then, the general Gaussian fading MAC with common information wherein partial Channel State Information (CSI) is available at the transmitters (CSIT) and perfect CSI is available at the receivers (CSIR) is investigated. A coding theorem is proved for this model that yields an exact characterization of the throughput capacity region. Finally, a two-transmitter/one-receiver Gaussian fading MAC with conferencing encoders with partial CSIT and perfect CSIR is studied and its capacity region is determined. For the Gaussian fading models with CSIR only (transmitters have no access to CSIT), some numerical examples and simulation results are provided for Rayleigh fading
- Keywords:
- Channel state information (CSI) ; Cooperative encoders ; Gaussian fading channel ; Multiple access channel (MAC) ; Capacity problems ; Capacity regions ; Coding theorems ; Common information ; Discrete memoryless channels ; Fading models ; Gaussian fading channels ; Gaussians ; Multiple access ; Multiple access channels ; Numerical example ; Partial channel state information ; Partial CSIT ; Throughput capacities ; Codes (symbols) ; Communication channels (information theory) ; Computer simulation ; Fading channels ; Gaussian distribution ; Rayleigh fading ; Theorem proving ; Transmitters ; Channel state information
- Source: IEEE Transactions on Information Theory ; Volume 57, Issue 11 , 2011 , Pages 7359-7376 ; 00189448 (ISSN)
- URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6071755