Turbo code/network coding-united relay transmission and corresponding decoding method

A network coding and decoding technology, which is applied in the field of wireless communication, can solve the problems of inability to perform parallel decoding and high decoding complexity, and achieve the effect of parallel decoding and low decoding complexity
CN102185682BInactive Publication Date: 2013-09-25XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
XIDIAN UNIV
Publication Date
2013-09-25
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a Turbo code / network coding-united relay transmission and corresponding decoding method, which mainly aims to solve the problems of low forwarding efficiency of a relay node and high decoding complexity of a destination node in the prior art. The method is implemented by the following steps that: source nodes broadcast data; the relay node performs Turbo decoding on received signals, performs Turbo coding and network coding modulation on decoded information, constructs a forwarding sequence according to the volume of the data to be forwarded, and forwards the data; and the destination node corrects the received signals, and performs Turbo decoding on the corrected signals of the two source nodes respectively. By the method, effective compromise between the forwarding efficiency of the relay node and the decoding performance of the destination node is realized; and the method has the advantage of low decoding complexity, and can be used for a wireless multiple access relay network.
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Description

technical field

[0001] The invention belongs to the technical field of wireless communication, and relates to channel coding and network coding, in particular to a relay transmission and corresponding decoding method combining Turbo code and network coding, which can be used in wireless multiple access relay networks . Background technique

[0002] Using relay nodes to help mobile users forward data can obtain additional diversity gain and improve the bit error BER performance of the receiving end, which is one of the effective means to improve the call quality of mobile users at the edge of the cell.

[0003] Existing wireless multiple access relay networks such as figure 1 shown. It consists of two source nodes, a relay node and a destination node. When its two source nodes communicate with the destination node with the help of a relay node, it usually needs four time slots, that is, the two source nodes respectively occupy a time slot to broadcast data to the relay nod...

Claims

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