Method and device for resource allocation based on allowance adaptive criterion

A technology of margin self-adaptation and resource allocation, which is applied in the direction of transmission path separation device, payload allocation, transmission path sub-channel allocation, etc., can solve the problem of low optimization rate, slow convergence speed, and inability to make full use of multi-user diversity gain And other issues

A technology of margin self-adaptation and resource allocation, which is applied in the direction of transmission path separation device, payload allocation, transmission path sub-channel allocation, etc., can solve the problem of low optimization rate, slow convergence speed, and inability to make full use of multi-user diversity gain And other issues

CN104618291AInactive Publication Date: 2015-05-13CHONGQING UNIV OF POSTS & TELECOMM
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  • Method and device for resource allocation based on allowance adaptive criterion
  • Method and device for resource allocation based on allowance adaptive criterion
  • Method and device for resource allocation based on allowance adaptive criterion

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Embodiment Construction

[0061] The resource allocation method based on the margin adaptive criterion in the present invention, the preferred embodiment is as follows figure 2 As shown, the implementation process can be divided into the following steps:

[0062] 101. Allocate the number of subcarriers to users in proportion according to user priority;

[0063] 102. Determine a modulation scheme according to channel conditions, and determine the number of bits per symbol of user k on subcarrier n according to the modulation scheme;

[0064] 103. According to the number of subcarriers allocated to the user and the number of bits determined by the modulation mode, minimize the total transmission power of the system, and output an optimal subcarrier allocation matrix; said minimize the total system transmission power, and output an optimal subcarrier allocation matrix , including: calculate the subcarrier allocation matrix according to the dynamic matrix, discretize the subcarrier allocation matrix, cal...

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Abstract

The invention relates to the field of a wireless communication technique, in particular to a method and a device for resource allocation on allowance adaptive criterion; the method comprises the steps: proportionally allocating sub-carrier numbers to users according to user priority; determining a modulation manner according to information channel conditions; calculating a sub-carrier allocation matrix according to a power matrix, discretely processing the sub-carrier allocation matrix, calculating an energy function according to the sub-carrier allocation matrix subjected to the discrete processing; if it satisfies a quit condition, exiting iteration; or else, updating the power matrix and then repeating the above procedures. Based on the allowance adaptive criterion and according to the sub-carrier numbers allocated to users and the bit number determined by the modulation manner, the total transmitting power of the system is minimized and the optimal sub-carrier allocation matrix is output.

Description

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Claims

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Application Information

Patent Timeline
13 May 2015
Publication
CN104618291A