TY - GEN
T1 - Performance evaluation of a frequency selective millimeter wave system with limited feedback
AU - Teodoro, Sara
AU - Lopes, André
AU - Magueta, Roberto
AU - Castanheira, Daniel
AU - Silva, Adão
AU - Dinis, Rui
AU - Gameiro, Atilio
N1 - info:eu-repo/grantAgreement/FCT/3599-PPCDT/126500/PT#
info:eu-repo/grantAgreement/FCT/3599-PPCDT/129060/PT#
info:eu-repo/grantAgreement/FCT/3599-PPCDT/132939/PT#
info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F79707%2F2011/PT#
This work was supported by the Portuguese Fundacao para a Ciencia e Tecnologia (FCT) COPWIN (PTDC/EEI-TEL/1417/2012), ADIN (PTDC/EEI-TEL/2990/2012) and HETCOP (PEst-OE/EEI/LA0008/2013) projects, and FCT grant for the first author (SFRH/BPD/79707/2011).
PY - 2018/1/11
Y1 - 2018/1/11
N2 - Following the recent interest in millimeter wave (mmWave) for wireless applications and the difficulty in having the channel state information at transmitter due to the large amount of data required for feedback, a low complex uniform-based limited feedback technique is proposed, for a mmWave massive MIMO OFDM-based (Orthogonal Frequency Division Multiplexing) system. The wideband mmWave system has both transmitter and receiver equipped with a large antenna array, and employs a hybrid analog-digital precoding and combiner: the digital precoder is applied in the frequency domain and differ from subcarrier to subcarrier, while the analog precoder is frequency flat. The limited feedback strategy employs a uniform-based quantization for channel amplitudes, angle of departure and angle of arrival in time domain. After being fed back, these information is used to reconstruct the overall channel in frequency domain and the transmit antenna array, which are then used to compute the hybrid analog-digital precoders. Numerical results show that the proposed quantization strategy achieves a performance close to the one obtained with perfect full channel with a low overhead and complexity.
AB - Following the recent interest in millimeter wave (mmWave) for wireless applications and the difficulty in having the channel state information at transmitter due to the large amount of data required for feedback, a low complex uniform-based limited feedback technique is proposed, for a mmWave massive MIMO OFDM-based (Orthogonal Frequency Division Multiplexing) system. The wideband mmWave system has both transmitter and receiver equipped with a large antenna array, and employs a hybrid analog-digital precoding and combiner: the digital precoder is applied in the frequency domain and differ from subcarrier to subcarrier, while the analog precoder is frequency flat. The limited feedback strategy employs a uniform-based quantization for channel amplitudes, angle of departure and angle of arrival in time domain. After being fed back, these information is used to reconstruct the overall channel in frequency domain and the transmit antenna array, which are then used to compute the hybrid analog-digital precoders. Numerical results show that the proposed quantization strategy achieves a performance close to the one obtained with perfect full channel with a low overhead and complexity.
KW - Broadband channel
KW - channel quantization
KW - limited feedback
KW - massive MIMO
KW - mmWave
KW - wireless communication
UR - http://www.scopus.com/inward/record.url?scp=85045298311&partnerID=8YFLogxK
U2 - 10.1109/ICUMT.2017.8255168
DO - 10.1109/ICUMT.2017.8255168
M3 - Conference contribution
AN - SCOPUS:85045298311
T3 - International Conference on Ultra Modern Telecommunications and Control Systems & Workshops
SP - 79
EP - 84
BT - 2017 9th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2017
PB - IEEE Computer Society
T2 - 9th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2017
Y2 - 6 November 2017 through 8 November 2017
ER -