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Coding method for space-time interlaced recurrent code directed at full duplex cooperative communication system

A technology of cooperative communication and coding method, which is applied in the coding field of space-time codes, and can solve the problem of not considering multi-antenna relay and so on.

Active Publication Date: 2015-07-15
XIDIAN UNIV
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Problems solved by technology

The disadvantage of the above method is that in the full-duplex cooperative system, the loop signal is directly eliminated as an interference signal as much as possible, and the loop signal is not effectively used.
The disadvantage of the above method is: the relay nodes in the cooperative communication system are single-input antenna single-output antenna (SISO), and the situation of multi-antenna relay is not considered

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  • Coding method for space-time interlaced recurrent code directed at full duplex cooperative communication system
  • Coding method for space-time interlaced recurrent code directed at full duplex cooperative communication system
  • Coding method for space-time interlaced recurrent code directed at full duplex cooperative communication system

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Embodiment Construction

[0058] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0059] refer to figure 1 , in the full-duplex MIMO relay cooperative communication network, the relay node adopts full-duplex mode to receive and transmit signals, the source node and the destination node are equipped with one antenna, and the relay node is equipped with multiple transmitting antennas and multiple receiving antennas antenna. The source node modulates the transmitted signal and then sends the signal to the relay node, the relay node uses the amplification and forwarding AF method to amplify and forward the received signal, and the destination node receives the signal forwarded through the relay link, using the minimum mean square error criterion It is decoded and then demodulated to recover the information of the source node.

[0060] refer to figure 2 and image 3 , the space-time interleaved convolutional coding met...

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Abstract

The invention discloses a coding method for a space-time interlaced recurrent code directed at a full duplex cooperative communication system. In a full duplex MIMO relay cooperative communication network, a relay node adopts a full duplex mode to receive and send signals; two antennas are arranged on an originating node and a destination node respectively; a plurality of sending antennas and a plurality of receiving antennas are arranged on the relay node; the originating node modulates a sending signal, and sends the modulated signal to the relay node; the relay node adopts an AF (amplification and forwarding) method to amplify the received signal and forward the amplified signal; the destination node receives the signal forwarded by a relay link; decoding is conducted according to a minimum mean square error criterion; the information of the originating node is recovered through demodulation. As the relay node adopts the full duplex mode and space-time interlaced recurrent coding scheme, not only is the decoding method higher in spectrum efficiency, but also asynchronous cooperation full mark transmission gain can be obtained, and the reliability of the cooperative communication system can be improved.

Description

technical field [0001] The present invention relates to a coding method of a space-time code, in particular to a coding method of a space-time interleaved convolutional code for a full-duplex cooperative communication system, which can be used in a full-duplex cooperative transmission system of future wireless mobile communication, and belongs to communication technology field. Background technique [0002] In a multi-user system, cooperative communication can obtain diversity gain by using multiple relay nodes to forward the signal of the source node, and users with different channel qualities are allowed to cooperate with each other and forward information to the destination node. The main relay protocols are divided into amplify and forward (AF) and decode and forward (DF) protocols. The working mode of the relay node is divided into half-duplex (HD) mode and full-duplex (FD) mode. When the relay node adopts the HD mode, the relay node can only be limited to orthogonal (...

Claims

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Application Information

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IPC IPC(8): H04L1/06H04L5/14
Inventor 刘毅张海林马琪张悦
Owner XIDIAN UNIV
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