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Communication Dans Un Congrès Année : 2016

On MIMO phase noise channels at high SNR

Résumé

We consider the point-to-point multi-input-multiple-output (MIMO) channel with phase uncertainty (MIMO phase noise channel) at high SNR. With phase noise on the individual paths of the channel (model A), we show that the multiplexing gain is 1 2 , which implies that the capacity does not scale with the channel dimension at high SNR. With phase noise at both the input and output of the channel (model B), the multiplexing gain is upper-bounded by 1 2 min{nt, (nr − 2) + + 1}, and lower-bounded by 1 2 min{nt, nr+1 2 }, where nt and nr are the number of transmit and receive antennas, respectively. The multiplexing gain is enhanced to 1 2 min{nt, nr} without receive phase noise, and to 1 2 min{2nt − 1, nr} without transmit phase noise. Our main results rely on the derivation of non-trivial upper and lower bounds on the capacity of such channels.
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Dates et versions

hal-01433715 , version 1 (10-06-2020)

Identifiants

Citer

Sheng Yang, Shlomo Shamai Shitz. On MIMO phase noise channels at high SNR. 2016 IEEE Information Theory Workshop (ITW), Sep 2016, Cambridge, United Kingdom. ⟨10.1109/ITW.2016.7606845⟩. ⟨hal-01433715⟩
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