Ecole d'ingénieur et centre de recherche en Sciences du numérique

Net degrees of freedom of decomposition schemes for the MIMO IC with delayed CSIT

Lejosne, Yohan; Slock, Dirk TM; Yuan-Wu, Yi

ISIT 2014, IEEE International Symposium on Information Theory, June 29-July 4, 2014, Honolulu, HI, United States

Most techniques designed for the multiple-input multiple-output (MIMO) Interference Channel (IC) require accurate current channel state information at the transmitter (CSIT) which is not a realistic assumption because of feedback delay. We evaluate the net degrees of freedom (DoF) that different schemes can be expected to reach in a realistic system by taking into account the time and the cost of CSIT acquisition (training and feedback). A recent variant of ergodic interference alignment (IA) clearly outperforms the other schemes as its robustness to feedback delays proves to be advantageous in terms of net DoF.

Document Doi Bibtex

Titre:Net degrees of freedom of decomposition schemes for the MIMO IC with delayed CSIT
Type:Conférence
Langue:English
Ville:Honolulu
Pays:ÉTATS-UNIS
Date:
Département:Systèmes de Communication
Eurecom ref:4354
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Bibtex: @inproceedings{EURECOM+4354, doi = {http://dx.doi.org/10.1109/ISIT.2014.6875132}, year = {2014}, title = {{N}et degrees of freedom of decomposition schemes for the {MIMO} {IC} with delayed {CSIT}}, author = {{L}ejosne, {Y}ohan and {S}lock, {D}irk {TM} and {Y}uan-{W}u, {Y}i}, booktitle = {{ISIT} 2014, {IEEE} {I}nternational {S}ymposium on {I}nformation {T}heory, {J}une 29-{J}uly 4, 2014, {H}onolulu, {HI}, {U}nited {S}tates }, address = {{H}onolulu, {\'{E}}{TATS}-{UNIS}}, month = {06}, url = {http://www.eurecom.fr/publication/4354} }
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