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Design method for secondary user network linear transceiver with cognitive relay network

A design method and technology of cognitive relay, applied in the direction of shaping network in transmitter/receiver, space transmit diversity, diversity/multi-antenna system, etc., can solve the problem of lack of research content, etc.

Inactive Publication Date: 2014-12-10
GUANGDONG UNIV OF TECH
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  • Description
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  • Application Information

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Problems solved by technology

In the underlay cognitive relay network, some of the relevant transceiver design content is aimed at the cognitive radio network without relay, and some are aimed at the cognitive radio network with single relay, single antenna or single user. Relay, multi-antenna cognitive relay network transceiver design research content is not much
Existing research is aimed at minimizing the relay forwarding noise power, and lacks a transceiver design that simultaneously eliminates secondary user interference to primary user interference, primary user interference to secondary user interference, and mutual interference between secondary users, and maximizes secondary user throughput. Content

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  • Design method for secondary user network linear transceiver with cognitive relay network
  • Design method for secondary user network linear transceiver with cognitive relay network
  • Design method for secondary user network linear transceiver with cognitive relay network

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Embodiment Construction

[0050] SUMMARY OF THE INVENTION Computations and implementations are performed using digital integrated circuit chips. Implementation details are described below.

[0051] Instructions for the use of symbols: use capital bold letters to represent matrices, and lowercase bold letters to represent vectors; Z T ,Z H ,Z -1 ,Z 1 / 2 , det(Z), and vec(Z) represent the transpose, conjugate transpose, inverse, square root, determinant, and vectorization of the matrix Z respectively; null(Z) represents the null space of the matrix Z; z T ,z H Represents the transposition and conjugate transposition of the vector z; I M Represents the M×M identity matrix; Represents the Kronecker product of matrices.

[0052] System description: The underlay cognitive radio network with multi-user, multi-relay, and multi-antenna considered in the present invention is as follows: figure 1 shown. The primary user and the secondary user communicate at the same frequency at the same time. The prima...

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Abstract

The invention provides a design method for a secondary user network linear transceiver with a cognitive relay network. The design method comprises the following steps: designing a linear precoder for each secondary user source terminal transmitter to eliminate the interference from the secondary user transmitter to a master user; designing a linear receiver for each secondary user target receiving terminal to eliminate the interference from the master user to the secondary user receiver; and designing beam forming for each secondary user relay to eliminate the interference from the relays to the master user and the mutual interference among secondary users, and maximizing the throughput of the secondary users. The design method can simultaneously eliminate the interference from the secondary users to the master user and the mutual interference among the secondary users, and maximize the throughput of the secondary users. The design method has no limitation for the number of the users and the relays, wherein the number of the users and the relay is greater than or equal to 1. The design method is suitable for the cognitive relay network comprising a single user and a single relay network and any number of the user relays.

Description

technical field [0001] The present invention relates to the new technology field of wireless communication physical layer, and more particularly relates to a design method of a linear transceiver of a secondary user network of a cognitive relay network. Background technique [0002] Cognitive radio technology has attracted much attention due to its ability to effectively utilize the increasingly depleted radio spectrum resources. This technology enables secondary users not authorized to use the same frequency band for communication without affecting the communication of the primary user authorized by the spectrum. Spectrum sharing methods are mainly divided into overlay and underlay. The overlay method stipulates that the secondary user can only use the spectrum when the primary user is idle, while the underlay method allows the secondary user and the primary user to share the spectrum at the same time under the premise of ensuring that the secondary user does not affect th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03H04L1/06H04B7/04
Inventor 张广驰
Owner GUANGDONG UNIV OF TECH
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