Orthogonal frequency division multiple access relay system resource allocation method based on game theory

A technology of orthogonal frequency division multiple access and relay system, which is applied in the field of distributed dynamic resource allocation and can solve problems such as difficult modeling
CN101730109AInactive Publication Date: 2010-06-09PLA UNIV OF SCI & TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PLA UNIV OF SCI & TECH
Publication Date
2010-06-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a resource allocation method comprehensively considering trunk node selection, subcarrier pairing and power control, which is based on the solution of orthogonal frequency division multiple access relay system resource allocation of a game theory. The trunk nodes divide equivalent channel gain obtained by calculation into quantized intervals, and feed back the serial number of the quantized interval to which the trunk node belongs, thereby ensuring that cooperative node selection can be determined through less bit information interchange. A base station firstly allocates the subcarrier of each trunk node for the second jump, and then the trunk nodes select a user node. Subcarriers of two jumps are matched by using megamerger as the purpose, and the maximum flow and minimum division theory are utilized to determine the transmitted power on corresponding subcarrier when trunk nodes are forwarded. Particularly, a speed utility function based on unit power is established, a price mechanism based on link quality and transmitted power is introduced, and price factors can be adjusted in real time according to different service requirements, thereby realizing the optimized allocation of transmitted power of user nodes on each selected subcarriers.
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Description

technical field

[0001] The present invention relates to a solution for distributed dynamic resource allocation in an Orthogonal Frequency Division Multiple Access (OFDMA) relay system, specifically a method for uplink OFDMA A dynamic resource allocation method based on non-cooperative game-based relay selection, subcarrier pairing and power allocation in a relay system that takes performance optimization and fairness into account. Background technique

[0002] In order to meet the requirements of high transmission rate and high-band time wide coverage of the next-generation broadband mobile communication standard (IMT-Advanced), people regard cooperative communication technology as one of the key technologies of future mobile communication systems, hoping to achieve Obtain synergistic diversity gain, improve data transmission rate, increase system coverage and save terminal power consumption. As one of the important application scenarios of cooperative communication, relay-...

Claims

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