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Joint virtual mimo resource allocation method based on dynamic user pairing

A resource allocation and dynamic user technology, applied in the direction of allocation standards, transmission path sub-channel allocation, multiple use of transmission paths, etc., can solve the problems affecting communication quality, not considering the performance of the system bit error rate, and can not be obtained, etc., to improve System communication quality, efficient multi-user pairing and resource allocation, and the effect of maximizing frequency utilization

Active Publication Date: 2018-09-11
XIDIAN UNIV
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Problems solved by technology

This method does not jointly consider the user pairing problem and the resource allocation problem, and cannot perform dynamic user pairing according to the channel state, so the maximum system spectrum utilization rate cannot be obtained; at the same time, the existing method does not consider the bit error rate performance of the system , so it cannot guarantee that the bit error rate of the system is below a certain threshold, which will affect the improvement of communication quality

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  • Joint virtual mimo resource allocation method based on dynamic user pairing
  • Joint virtual mimo resource allocation method based on dynamic user pairing
  • Joint virtual mimo resource allocation method based on dynamic user pairing

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Refer to attached figure 1 , the specific implementation steps of the present invention are as follows:

[0026] Step 1, the base station obtains the set l of users to be paired, the number Nu of users to be paired, the set r of resource blocks, the number N of resource blocks and the number Nr of receiving antennas of the current time slot.

[0027] The user set l to be paired is expressed as: l={l 1 , l 2 ,...,l i ,...,l Nu}, where l i Indicates the number of the i-th user to be paired, i∈[1,Nu], Nu represents the number of users to be paired;

[0028] Resource block set r is expressed as: r={r 1 ,r 2 ,...,r j ,...,r N}, where r j Indicates the number of the jth resource block, j∈[1,N], and N indicates the number of resource blocks.

[0029] Step 2, according to the resource block set r and the number N of resource blocks, an optional resource bloc...

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Abstract

The invention discloses a combined virtual MIMO resource distribution method based on dynamic user pairing in the wireless communication field, mainly solving the problems of low frequency spectrum utilization ratio and poor communication quality caused by incapability of dynamically adjusting system user paring and resource distribution of the prior art. The technical scheme comprises: employing a resource distribution constraint matrix, a user pairing constraint matrix and a user pairing capacity vector as parameters, constructing and solving a user pairing and resource distribution model and obtaining an optimal user pairing and resource distribution result vector; modulating data information carried by each user according to the result vector and a user modulation matrix; and sending modulated data signals to a signal receiver at a resource block distributed to a user. The method can efficiently perform dynamic multi-user paring and resource distribution, maximize a communication system frequency spectrum utilization ratio under the condition of meeting system communication quality requirements, and be used for a handset user in a virtual MIMO system to perform user pairing and resource distribution.

Description

technical field [0001] The present invention belongs to the technical field of communication, and further relates to a virtual multiple-input multiple-output MIMO resource allocation method, which is used to dynamically allocate resource blocks to paired mobile phone user pairs in the uplink of a virtual MIMO system, so that The information carried by each mobile phone user in the mobile phone user pair is sent to the signal receiver of the base station at the same time on the allocated resource block to maximize the spectrum utilization of the system Background technique [0002] Multiple-input multiple-output MIMO technology has been widely used in various wireless communication systems to improve spectrum efficiency. However, due to practical operational difficulties such as cost and size of user equipment, the application of MIMO technology in uplink is limited. To solve this problem, the concept of virtual multiple-input multiple-output MIMO is proposed, that is, two o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04H04B7/0413
CPCH04B7/0413H04L5/0058H04W72/0453
Inventor 卢小峰李文娜裘潲君韩丛端王建林张海林
Owner XIDIAN UNIV
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