Proportion fairness-based resource allocation algorithm in grouped MIMO-MC-CDMA (Multiple Input Multiple Output-Multicarrier-Code Division Multiple Access) system

A MIMO-MC-CDMA, resource allocation technology, applied in the field of resource allocation algorithm based on proportional fairness, can solve the problem that resources cannot be used reasonably

Inactive Publication Date: 2013-03-06
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the above-mentioned problems and provide a resource allocation algorithm based on proportional fairness in a packet MIMO-MC-CDMA system. The allocation algorithm is used in the packet MIMO-MC-CDMA system, which solves the problem that the resources in the MIMO-MC-CDMA system cannot be used reasonably, so that the resources of the system can be fully utilized while meeting the needs of different user rates , improve system resource utilization

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  • Proportion fairness-based resource allocation algorithm in grouped MIMO-MC-CDMA (Multiple Input Multiple Output-Multicarrier-Code Division Multiple Access) system
  • Proportion fairness-based resource allocation algorithm in grouped MIMO-MC-CDMA (Multiple Input Multiple Output-Multicarrier-Code Division Multiple Access) system
  • Proportion fairness-based resource allocation algorithm in grouped MIMO-MC-CDMA (Multiple Input Multiple Output-Multicarrier-Code Division Multiple Access) system

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Embodiment Construction

[0093] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0094] The invention makes the spectrum resource be dynamically adjusted according to the change of the equivalent channel gain and the different requirements of the user on the rate by rationally utilizing the spectrum resource, thereby improving the system throughput performance. On the basis of making full use of frequency spectrum resources, the present invention satisfies the user's rate requirement to the greatest extent, allowing the user to experience better service quality.

[0095] Combine below figure 1 , to further illustrate the block diagram of the packet MIMO-MC-CDMA system proposed by the present invention.

[0096] The users are first grouped by the multi-user grouping algorithm, and then the user data is spread-spectrum coded, and then the coded chips of each user in the same group are added, and then enter the subcarrier allocation m...

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Abstract

The invention discloses a proportion fairness-based resource allocation algorithm in a grouped MIMO-MC-CDMA (Multiple Input Multiple Output-Multicarrier-Code Division Multiple Access) system. The resource allocation algorithm is characterized by comprising the following specific steps of: (1) establishing a system model of the grouped MIMO-MC-CDMA system according to the problem of throughput maximization of the grouped MIMO-MC-CDMA system and the requirement of different user rates on the grouped MIMO-MC-CDMA system; (2) grouping users according to the equivalent space channel gains of users on every different sub-carriers; and (3) allocating the sub-carriers according to the requirements of different user rates and the requirement of throughput maximization. The resource allocation algorithm has the beneficial effects that the problem of incapability of reasonably utilizing resources in the MIMO-MC-CDMA system is solved, the requirement of different user rates can be met while resources of the system are fully utilized, and the resource utilization ratio of the system is increased.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a resource allocation algorithm based on proportional fairness in a packet MIMO-MC-CDMA system. Background technique [0002] With the rapid development of mobile communication technology, various high-speed data services represented by multimedia services continue to grow and gradually become core services. The future wireless communication system requires that the system resource utilization rate be improved as much as possible, and at the same time, the quality of service (QoS) of users is also an urgent issue to be considered. The MIMO-MC-CDMA system has the advantages of diversity system, multi-carrier modulation system and spread spectrum system, can maximize the use of system diversity resources, resist multipath fading, and has high user capacity and high data transmission rate And good reliability, it has a good prospect in the future wireless communication. For...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/00
Inventor 曹叶文贾晓剑
Owner SHANDONG UNIV
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