TY - JOUR
T1 - Dynamic Metasurface Antennas for MIMO-OFDM Receivers with Bit-Limited ADCs
AU - Wang, Hanqing
AU - Shlezinger, Nir
AU - Eldar, Yonina C.
AU - Jin, Shi
AU - Imani, Mohammadreza F.
AU - Yoo, Insang
AU - Smith, David R.
N1 - Funding Information:
Manuscript received April 22, 2020; revised September 9, 2020; accepted November 16, 2020. Date of publication November 26, 2020; date of current version April 16, 2021. The work of H. Wang and S. Jin was supported in part by the National Science Foundation of China (NSFC) for Distinguished Young Scholars of China with Grant 61625106 and the NSFC under Grant 61531011, and the Scientific Research Foundation of Graduate School of Southeast University under Grant YBJJ1759. The work of N. Shlezinger and Y. C. Eldar was supported by the Benoziyo Endowment Fund for the Advancement of Science, the Estate of Olga Klein – Astrachan, the European Union’s Horizon 2020 research and innovation program under grant No. 646804-ERC-COG-BNYQ, and the Air Force Office of Scientific Research under grants No. FA9550-18-1-0187 and FA9550-18-1-0208. This article was presented in part at the 2020 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2020. The associate editor coordinating the review of this article and approving it for publication was S. Affes. (Corresponding author: Shi Jin.) Hanqing Wang and Shi Jin are with the National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China (e-mail: hqwanglyt@seu.edu.cn; jinshi@seu.edu.cn).
Publisher Copyright:
© 1972-2012 IEEE.
PY - 2021/4
Y1 - 2021/4
N2 - The combination of orthogonal frequency modulation (OFDM) and multiple-input multiple-output (MIMO) techniques plays an important role in modern communication systems. In order to meet the growing throughput demands, future MIMO-OFDM receivers are expected to utilize a massive number of antennas, operate in dynamic environments, and explore high frequency bands, while satisfying strict constraints in terms of cost, power, and size. An emerging technology to realize massive MIMO receivers of reduced cost and power consumption is based on dynamic metasurface antennas (DMAs), which inherently implement controllable compression in acquisition. In this work we study the application of DMAs for MIMO-OFDM receivers operating with bit-constrained analog-to-digital converters (ADCs). We present a model for DMAs which accounts for the configurable frequency selective profile of its metamaterial elements, resulting in a spectrally flexible hybrid structure. We then exploit previous results in task-based quantization to show characterized the achievable OFDM recovery accuracy for a given DMA configuration in the presence of bit-constrained ADCs, and propose methods for adjusting the DMA parameters based on channel state information. Our numerical results demonstrate that by properly exploiting the spectral diversity of DMAs, notable performance gains are obtained over existing designs of conventional hybrid architectures, demonstrating the potential of DMAs for realizing high performance massive antenna arrays of reduced cost and power consumption.
AB - The combination of orthogonal frequency modulation (OFDM) and multiple-input multiple-output (MIMO) techniques plays an important role in modern communication systems. In order to meet the growing throughput demands, future MIMO-OFDM receivers are expected to utilize a massive number of antennas, operate in dynamic environments, and explore high frequency bands, while satisfying strict constraints in terms of cost, power, and size. An emerging technology to realize massive MIMO receivers of reduced cost and power consumption is based on dynamic metasurface antennas (DMAs), which inherently implement controllable compression in acquisition. In this work we study the application of DMAs for MIMO-OFDM receivers operating with bit-constrained analog-to-digital converters (ADCs). We present a model for DMAs which accounts for the configurable frequency selective profile of its metamaterial elements, resulting in a spectrally flexible hybrid structure. We then exploit previous results in task-based quantization to show characterized the achievable OFDM recovery accuracy for a given DMA configuration in the presence of bit-constrained ADCs, and propose methods for adjusting the DMA parameters based on channel state information. Our numerical results demonstrate that by properly exploiting the spectral diversity of DMAs, notable performance gains are obtained over existing designs of conventional hybrid architectures, demonstrating the potential of DMAs for realizing high performance massive antenna arrays of reduced cost and power consumption.
KW - Metasurface antennas
KW - bit-constrained analog-to-digital converter (ADC)
KW - multiple-input multiple-output-orthogonal frequency division multiplexing (MIMO-OFDM)
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U2 - 10.1109/TCOMM.2020.3040761
DO - 10.1109/TCOMM.2020.3040761
M3 - Article
AN - SCOPUS:85104609104
SN - 0090-6778
VL - 69
SP - 2643
EP - 2659
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 4
M1 - 9272351
ER -