ICASSP 2014, IEEE International Conference on Acoustics, Speech, and Signal Processing, May 4-9, 2014, Firenze, Italy
This paper considers the problem of transmitter (TX) cooperation with distributed channel state information (CSI), where two or more transmitters seek to jointly precode messages while communicating over a rate-limited coordination link. Specifically we address a so-called master-slave scenario where one master (M-) TX is endowed with perfect CSI while K slave (S-) TXs have zero prior CSI information. We are interested in possible strategies for how the M-TX may
efficiently guide the S-TXs over the coordination links so as to maximize the network's figure of merit. Strategies related to communicating quantized CSI or quantized precoding decisions are described and compared. Optimal and sub-optimal low complexity approaches are shown, exhibiting gains over conventional methods.
Type:
Conférence
City:
Florence
Date:
2014-05-05
Department:
Systèmes de Communication
Eurecom Ref:
4164
Copyright:
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