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Cognitive cooperation multiple access method

An access method and a technology of cooperative nodes, which are applied in the direction of using the return channel for error prevention/detection, electrical components, wireless communication, etc., to achieve the effects of reducing data transmission time, improving QoS guarantee capabilities, and improving resource utilization

Inactive Publication Date: 2013-12-25
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the limitations and incompleteness of the multiple access method in the current cognitive collaborative network, and proposes a multiple access method for the cognitive collaborative network to enhance the QoS guarantee capability of secondary users

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Embodiment Construction

[0025] refer to figure 2 , the data transmission scenario of the cognitive collaboration network used in the present invention includes a source node 1 , a destination node 2 , a secondary coordination node 3 , and a secondary coordination destination node 4 . Since the channel condition from node 1 to node 2 is poor, direct transmission cannot meet the QoS requirements of node 1, so node 1 needs to find an intermediate node with good channel quality to both node 1 and node 2 for cooperation, while node 3 is It is such a node. On the one hand, its channel quality to both node 1 and node 2 is very good. If it provides cooperation for node 1, it can meet the service QoS requirements of node 1; on the other hand, node 3 itself also has services to send to Node 4, but as a secondary user, Node 3 cannot directly use network resources, but needs to cooperate with the primary user to use network resources to send its own business, so Node 3 has a strong willingness to cooperate, but...

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Abstract

The invention discloses a cognitive cooperation multiple access method, which is mainly used for solving the problem that the service quality of secondary users is low in an existing cognitive cooperation network. The method mainly comprises the steps as follows: 1, a master user carries information whether other users are required to provide cooperation in a cognitive cooperative request-to-send (CCoopRTS) in an appointed channel; 2, the secondary users with the cooperation capacity withdraw and keep off in accordance with self-resources and service conditions before transmitting the cooperation request, so that the secondary user with the maximum cooperation willingness acquires the cooperation right; and 3, the secondary cooperation user appoints a channel for self-services at the same time of sending help request to send (HRTS), so that the secondary cooperation user uses the channel to transmit the self-services after the master user finishes the transmission. The method is applied to the multiple access in the cognitive cooperation network, and can be used to improve the transmission performance of the master user, and the quality of service (QoS) of the secondary users.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to multi-user cognitive cooperation in heterogeneous network fusion, and specifically to a cognitive cooperative multiple access method, which can be used for secondary users in heterogeneous networks to identify cooperative identities and channels compete. Background technique [0002] With the rapid development of wireless communication technology, the new generation of wireless networks is gradually developing toward diversification, heterogeneity, and intelligence. The interconnection and interoperability of heterogeneous wireless communication networks has become the focus of the industry. However, in the face of such a complex heterogeneous network, the IMS technology in the traditional cellular network has been unsustainable, which has led to the combination of two emerging technologies, cognitive and collaborative technologies. On the other hand, through collab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04L1/16
Inventor 盛敏张琰付博马骁史琰李建东刘凯
Owner XIDIAN UNIV
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