Hybrid precoding design method using single-bit analog-to-digital converter mimo system

Abstract

The invention discloses a hybrid precoding design method using a single-bit analog-to-digital converter MIMO system. The scheme can combine a hybrid precoding structure and a low-precision analog-to-digital converter in the MIMO system to effectively reduce energy consumption of the MIMO system and implementation costs. The invention fully considers the hybrid precoding structure and the single-bit analog-to-digital converter structure, and performs mathematical modeling on them. In the application, the proposed iterative algorithm can be used to optimize the design of the analog precoder and the digital precoder to maximize the system's overall attainable rate. The present invention has the advantages of reducing system implementation cost and energy consumption, and maximizing the attainable rate of the whole system through the design of the digital precoder and the analog precoder. This advantage makes the proposed hybrid precoding design scheme have a wider range of application scenarios, thus making the MIMO system more feasible in practice.

Description

technical field [0001] The invention designs a hybrid precoder using a single-bit analog-to-digital converter MIMO system, and particularly relates to a wireless communication system suitable for single user and multiple antennas. Background technique [0002] MIMO systems are a key component of future wireless communication systems. Its multiplexing and beamforming gains are very attractive for a variety of systems such as mmWave systems and low frequency systems. However, the high hardware cost and power consumption of mixed-signal components makes an all-digital precoding solution difficult to implement in practice. To overcome this challenge, a new mechanism needs to be devised to relax the requirement for each antenna to be configured with an RF link. Using hybrid precoding architectures and low-precision analog-to-digital conversion receivers are two promising solutions. These two solutions represent two extreme cases, namely reducing the accuracy of the analog-to-d...

AI Technical Summary

Problems solved by technology

But only by using a hybrid architecture to reduce the number of RF links, while still using high-precision analog-to-digital converters, will also generate high power consumption

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