Graduate School and Research Center in Digital Sciences

Joint precoding over a master-slave coordination link

Li, Qianrui; Gesbert, David; Gresset, N

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.

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Title:Joint precoding over a master-slave coordination link
Keywords:distributed CSIT, master-slave, network MIMO, precoding
Department:Communication systems
Eurecom ref:4164
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Bibtex: @inproceedings{EURECOM+4164, doi = {}, year = {2014}, title = {{J}oint precoding over a master-slave coordination link}, author = {{L}i, {Q}ianrui and {G}esbert, {D}avid and {G}resset, {N}}, booktitle = {{ICASSP} 2014, {IEEE} {I}nternational {C}onference on {A}coustics, {S}peech, and {S}ignal {P}rocessing, {M}ay 4-9, 2014, {F}irenze, {I}taly }, address = {{F}lorence, {ITALY}}, month = {05}, url = {} }
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