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A method and system for multi-user joint verification relay cooperative communication

A cooperative communication and multi-user technology, applied in the direction of transmission system, digital transmission system, forward error control, etc., can solve the problems of high coding and decoding complexity and poor reliability, and reduce the decoding complexity and bit error rate Effects of performance improvement and power consumption saving

Inactive Publication Date: 2011-12-14
ZTE CORP
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a method and system for multi-user joint verification of relay cooperative communication to solve the problems of high encoding and decoding complexity and poor reliability in multi-user communication in existing relay cooperative communication

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  • A method and system for multi-user joint verification relay cooperative communication
  • A method and system for multi-user joint verification relay cooperative communication
  • A method and system for multi-user joint verification relay cooperative communication

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Embodiment Construction

[0062] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0063] Such as figure 1 As shown in , a schematic diagram of a multi-user relay cooperative communication system is shown. Among them, including multiple (n) user nodes U j , 3≤j≤n, relay node R and destination node D. A user terminal as a user node sends a modulated signal to the relay node and the target node in broadcast form, and the relay node relays the user signal and forwards it to the target node. The relay node is a relay station or a relay base station. The target node may be a base station.

[0064] Aiming at the problem of relatively high decoding complexity in most technical solutions based on network coding and channel coding in current relay cooperative communication, the present invention proposes a method and system for multi-user joint verif...

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Abstract

A method, system and device for multi-user joint detection in a relay and cooperative communication are disclosed, wherein the method includes the following steps: user terminals transmit modulated signals to a relay node and a destination node; the relay node performs a symbol-layer demodulation to the modulated signals received from the multiple user terminals by means of demodulating only one symbol of each user terminal every time, obtains the demodulated estimation sequence of data signals of the multiple user terminals, performs a convolutional encoding and outputs the checking data which are transmitted to the destination node after modulation; the destination node performs a symbol-layer demodulation to the modulated signals received from the multiple user terminals by means of demodulating only one symbol of each user terminal every time, demodulates the checking data modulated by the relay node, performs a decoding after combining the demodulated checking data with the demodulated data of the multiple user terminals, and outputs the decoded data.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a multi-user joint verification relay cooperative communication method and system. Background technique [0002] With the continuous evolution of wireless communication technology, people's requirements for the coverage area and data transmission rate of wireless communication systems are also increasing. However, the inherent multipath fading in wireless communication is an important bottleneck affecting the transmission rate and communication reliability. How to solve the impact of multipath fading on wireless communication is a key issue to improve communication quality and efficiency. Studies have shown that diversity technology can effectively combat multipath fading, and space diversity technology can improve the transmission reliability of communication systems without increasing time and bandwidth. Compared with time diversity and frequency diversity technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L1/06
CPCH04L1/0076H04L1/0057
Inventor 梁枫毕峰袁明杨瑾吴栓栓
Owner ZTE CORP
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