Capacity Analysis of MISO Channels with One-Bit Transceiver

In this paper, we analyze the information-theoretical limits of a multiple-input single-output (MISO) channel with one-bit transceiver. In particular, we present a capacity expression in a closed form when perfect channel state information (CSI) is available at both a transmitter and a receiver. One...

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Bibliographic Details
Main Authors: Nam, Yunseo, Do, Heedong, Jeon, Yo-Seb, Lee, Namyoon
Format: Conference Proceeding
Language:English
Subjects:
Binary phase shift keying
Entropy
MISO communication
Mutual information
Signal to noise ratio
Transceivers
Transmitting antennas
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Summary:In this paper, we analyze the information-theoretical limits of a multiple-input single-output (MISO) channel with one-bit transceiver. In particular, we present a capacity expression in a closed form when perfect channel state information (CSI) is available at both a transmitter and a receiver. One major finding is that the capacity-achieving transmission strategy is to uniformly use four multi-dimensional signal points. The four signal points are chosen as a function of the channel and the signal-to-noise ratio (SNR) from the channel input set constructed by a spatial lattice modulation (SLM) method. From our analysis and simulation results, we also demonstrate that the capacity loss caused by the use of one-bit DACs is sufficiently small throughout the entire SNR regime even with a few-bit CSIT feedback that suffices to achieve the capacity.
ISSN:2157-8117
DOI:10.1109/ISIT.2019.8849629