Cooperative transmission method combined with higher-order domain network coding

A network coding and cooperative transmission technology, applied in transmission systems, digital transmission systems, electrical components, etc., can solve the problems of insufficient linear independence of data packets, low solvability of decoding equations, and inability to serve multiple users. Achieve the effect of improving collaboration efficiency and overall system performance, improving system performance, and low cost

Inactive Publication Date: 2011-04-13
UNIV OF SCI & TECH OF CHINA
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Problems solved by technology

However, in these two cooperative transmission methods, a single cooperative transmission node can only serve a designated single user in the same cooperative transmission process, and cannot serve multiple users at the same time, so it cannot obtain high cooperative transmission efficiency
[0004] "International Conference on Communication organized by the Institute of Electrical and Electronics Engineers" (IEEE Wireless Communications and Networking Conference, 2006, pp1681-

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  • Cooperative transmission method combined with higher-order domain network coding
  • Cooperative transmission method combined with higher-order domain network coding
  • Cooperative transmission method combined with higher-order domain network coding

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Embodiment 1

[0028] This embodiment adopts an uplink multi-user cooperative cellular network, and users form a cooperative transmission group to transmit data to the base station according to the transmission method of the present invention. Simulation Statistics 10 8 The average result of the second uplink transmission is to investigate the performance of the cooperative transmission method of the present invention combined with high-order domain network coding from the perspective of system outage probability. The specific simulation parameter settings are shown in Table 1 below:

[0029] Table 1 Parameter settings

[0030] Simulation parameter value

[0031] Target spectrum efficiency 0.5bit / s / Hz

[0032] Small-scale fading model Rayleigh fading

[0033] Rayleigh fading variance 1

[0034] Noise power spectral density N 0 (After normalization) 1

[0035] Number of users N 3, 5

[0036] In the cooperative transmission method combined with high-order domain network coding in this embodiment, the use...

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Abstract

The invention discloses a cooperative transmission method combined with higher-order domain network coding. The method is characterized in that at the first stage of transmission, each user transmits self information and simultaneously monitors information transmitted by other users; and at the second stage of transmission, each user utilizes coding vectors to carry out linear superimpose coding on packets monitored at the first stage and the self information on a high-order domain and then transmit the coded packets and information, and a receiving end utilizes a coded matrix to form packetscorrectly received to a linear simultaneous equation on the high-order domain so as to solve original data sent by the users. In the method disclosed by the invention, the cooperative transmission technology in a multi-user cooperative transmission system is combined with the higher-order domain network coding technology, thereby providing highly reliable insurance for uplink data transmission ofmulti users and effectively improving the cooperative transmission efficiency and the overall system performance.

Description

Technical field [0001] The invention belongs to the technical field of cooperative communication (Cooperative Communication) in cellular mobile communication technology, and particularly relates to a cooperative transmission method combined with high-order domain network coding in a cellular mobile communication system. Background technique [0002] The cooperative communication technology utilizes the broadcast characteristics of the wireless channel and the independence of each user channel to assist in the transmission of information through geographically dispersed single-antenna wireless nodes to generate cooperative diversity gain, which is an effective means to combat wireless channel fading. Compared with the conventional point-to-point wireless communication mode, cooperative communication technology has higher transmission reliability. Therefore, cooperative communication technology is the core technology of future wireless mobile communication systems. How to carry ou...

Claims

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Application Information

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IPC IPC(8): H04L1/00
Inventor 詹磊韩凌娟周武旸
Owner UNIV OF SCI & TECH OF CHINA
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