Method and system for coding multi-system network Turbo code

A coding method and a multi-ary system technology, applied in diversity/multi-antenna systems, by combining multiple code structures for error correction/detection, space transmit diversity, etc., can solve problems such as immature solutions and achieve improved correction Error capability, impact resistance, coverage problem solving effect

Inactive Publication Date: 2010-06-30
西安新邮通信设备有限公司
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Problems solved by technology

[0019] Therefore, in the existing technology, there is no mature solution on how to effectively combine MIMO technolo

Method used

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  • Method and system for coding multi-system network Turbo code
  • Method and system for coding multi-system network Turbo code
  • Method and system for coding multi-system network Turbo code

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Embodiment Construction

[0048] Method embodiment: the encoding implementation steps of the multi-ary network Turbo code are as follows:

[0049] 1. User steps:

[0050] 1) The input information a of the user node to the Nth user N =(a N (1), a N (2),...,a N (L)) (including L information bits) after (2, 1, 7) convolutional coding and QPSK modulation, the modulation symbol will be obtained

[0051] S UN =(s UN (1), s UN (2),...,s UN (L)) launch.

[0052] 2. Relay steps, including:

[0053] 1) The maximum ratio of relay nodes to merge n RR The information sent from the user node received by the root receiving antenna is:

[0054] y RN = Σ i = 1 n RR y RN i = Σ i = 1 n RR ( ...

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Abstract

The invention discloses a method and a system for coding a multi-system network Turbo code. The method comprises the following steps: obtaining a symbol sequence after carrying out error correction coding and modulation on user information; merging each relay node in the maximum ratio to receive and demodulate an antenna receiving sequence, then respectively directly carrying out recursive convolution coding and carrying out recursive convolution coding after carrying out code element interleaving to obtain two groups of check digit sequences, and carrying out orthogonal space-time block coding to obtain a relay node emission matrix; merging each destination node in the maximum ratio to receive and demodulate a user node transmitting sequence received by an antenna, storing and carrying out orthogonal space-time block decoding on a received relay node transmitting sequence, and demodulating to obtain a check digit sequence; and merging and forming the multi-system network Turbo code. The invention can form the virtual MIMO for the single antenna user so as to obtain the transmitting and receiving diversity gain which can be provided by the system, promote the error correcting capacity of the transmission network, improve the network throughput and better solve the coverage problem of the marginal cell.

Description

technical field [0001] The invention relates to an encoding method and an encoding system in the communication field. Background technique [0002] With the rapid development of network and mobile communication, the existing second-generation mobile communication system can no longer meet the needs of the growth rate of mobile phone users; and the only voice service can not meet the needs of people to exchange information, people hope that anytime, anywhere Obtain multimedia services such as data, video, and images other than voice, but due to the limitations of many factors such as the multipath propagation environment, it is difficult to achieve high-speed data transmission in a wireless environment. Therefore, how to overcome the influence of multipath fading, improve the channel capacity of the wireless communication system, and realize high-speed and reliable information transmission has become a very important research direction. [0003] MIMO technology is the most s...

Claims

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Application Information

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IPC IPC(8): H04B7/08H04B7/06H04L1/06H03M13/29
Inventor 袁伟郭旭东雷绪恳
Owner 西安新邮通信设备有限公司
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