Smart phone and relay node robust joint signal processing method and system

Abstract

The invention provides a smart phone and a method for processing a relay node robustness allied signal. The method for processing the relay node robustness allied signal comprises the steps that relays assist wireless data transmission of the smart phone; the relays and the smart phone obtain estimated channels and evaluated error variances through channel estimation; the smart phone feeds back obtained information to the relays; the relays transmit channel information and the evaluated error variances to a central processing unit; the central processing unit calculates a transmitting pre-code of the smart phone and relay pre-codes, and the smart phone receives balanced matrixes and sends the balanced matrixes to relays; the relays feed back a pre-code of a source node transmitter and received balanced matrixes to the corresponding smart phone; the smart phone pre-processes and transmits the signal; the relays pre-processes and broadcasts the received signal; the smart phone detects the signal and obtains transmission information. The invention further provides a corresponding system. The smart phone and the method for processing the relay node robustness allied signal guarantee user transmission quality, improve the fairness of a communication system and simultaneously improve bit error rate performance when transmission of multiple pairs of smart phones is performed.

Description

technical field [0001] The present invention relates to a signal processing method in the wireless communication field, in particular to a robust joint signal processing method and system for a smart phone and a relay node. Background technique [0002] In wireless communication systems, using relays for auxiliary communication can overcome the shadow effect, increase coverage, and improve transmission reliability. Relay technology is of great significance to the development of the physical layer of wireless communication. It is one of the key technologies concerned by the academic and industrial circles, and it will be applied in the fourth generation mobile communication and future wireless communication systems. [0003] The combination of relay technology and multi-antenna technology, by installing multiple antennas in the relay node, can further use MIMO (Multi-Input Multi-Output) related technologies (such as transmission diversity, space division multiplexing) to enha...

AI Technical Summary

Problems solved by technology

[0008] Existing technology has not done much research on the robust signal processing method based on fairness in the scenario where multiple pairs of smart phone source nodes pass through multiple relay nodes to perform wireless information interaction, and the above-mentioned first article The literature only considers the optimization of the total mean square error performance in this scenario, and the second literature conducts fairness research in other scenarios

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