An Optimal Design Method for Multi-antenna Millimeter Wave Systems

Abstract

The present invention proposes a transmission rate optimization method based on joint design of transmission signals and analog linear receivers for a millimeter-wave multi-antenna system with low-bit quantization. Assuming that the receiving end and the sending end know the channel information, the singular value decomposition algorithm is used to complete the optimization design of the transmission signal covariance and the simulated linear receiver, and analyze and improve the transmission rate of the low-bit quantized millimeter-wave multi-antenna system. The advantage of the present invention is that it is not limited to the case where the millimeter-wave multi-antenna channel system is based on single-bit quantization, but is also applicable to low-bit quantization, and the addition of a small number of bits is more conducive to the improvement of system performance. In addition, the use of this method enables the transmission speed to reach the maximum value even at low signal-to-noise ratios, thereby further enhancing the application value of the method.

Description

technical field [0001] The invention designs a wireless communication and signal processing system, and in particular relates to a wireless communication system suitable for the environment of quantized channel loss. Background technique [0002] The high transmission rate of 5G wireless communication puts forward higher requirements on the range of transmission spectrum. Millimeter wave band wireless communication can effectively solve the dilemma of current wireless communication spectrum scarcity, and has become a research hotspot in future wireless communication. The greater information capacity of the millimeter wave band can greatly improve the network capacity of the entire wireless network, especially when combined with large-scale antenna technology, it has become a major advantage of millimeter wave band wireless communication. In addition, the shorter wavelength greatly reduces the size of the antenna design, which is more conducive to the construction of millime...

AI Technical Summary

Problems solved by technology

However, most of the current research on transmission rate is limited to the case of single-bit quantization. Since a small amount of bit increase can improve system performance, the research attention on low-bit quantization (non-single-bit quantization) systems is gradually increasing.

In addition, for the optimization of the transmission rate of the low-bit quantization system, seldom start from the perspective of transmission signal design and analog linear receiver design

Images