Interference management-based power and speed combined control gaming method

A joint control and interference management technology, applied in power management, wireless communication, electrical components, etc., to achieve the effect of reducing interference, reducing interference, and improving the receiving signal-to-interference ratio

Active Publication Date: 2012-05-09
NANJING UNIV OF POSTS & TELECOMM
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  • Abstract
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Problems solved by technology

Obviously, the static spectrum allocation strategy implemented in the past has become a bottleneck with the rapid development of communication technology

Method used

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  • Interference management-based power and speed combined control gaming method
  • Interference management-based power and speed combined control gaming method
  • Interference management-based power and speed combined control gaming method

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Embodiment Construction

[0015] The interference model involved in the present invention is as figure 1 shown. Analyze the cognitive radio network that shares the spectrum in the underlay mode, the primary user PU s and SU s Coexist and share the same spectrum (bandwidth W (MHz)), the authorized primary user and the primary user base station BS p For communication, unlicensed secondary users use code division multiple access (CDMA) to communicate with secondary user base stations BS s communication ( figure 1 ). The transmit power of the secondary user will cause certain interference to the primary user and affect the communication quality of the primary user. In order to prevent communication performance from deteriorating due to interference, the primary user defines an interference threshold to limit the maximum interference of secondary users to primary users. In addition, the primary user will impose a certain penalty on the secondary user, and further limit the interference of the secondar...

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Abstract

The invention aims at providing an interference management-based power and speed combined control gaming method in a cognitive radio system. Aiming at the defect of the traditional interference temperature model in the aspect of reducing the interference suffered by a master user, the method disclosed by the invention ensures that the subjective initiative of the master user in the interference control is enhanced. In the process of mutually gaming of secondary users, the interference to the master user, from the secondary users, is monitored at the same time of reducing the interference among the secondary users by adjusting emitting power and transmitting speed, and an interference punishment factor is designed at the same time of ensuring that the interference to the master user does not exceed an interference threshold, the punishment to the secondary users which interfere the master user greatly is larger, the emitting powers of the secondary users are reasonably distributed, and the interference to the master user is reduced.

Description

technical field [0001] The invention relates to a resource allocation scheme in a cognitive radio system, in particular to a power-rate joint control game method based on interference management, and belongs to the field of information technology. Background technique [0002] It is well known that the radio frequency spectrum is a valuable natural resource and is generally authorized for use by governments. The spectrum resource allocation method defined earlier is static, and different communication systems can only work in authorized dedicated frequency bands. With the rapid development of wireless communication technology, more and more wireless devices are widely used, spectrum resources are gradually becoming scarce, and become the most valued non-renewable resources in modern society. Especially as many users have started to access the Internet through technologies such as wireless local area network (WLAN) and wireless personal area network (WPAN) working in unlicen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/24H04W72/08
Inventor 朱琦马良朱洪波杨龙祥
Owner NANJING UNIV OF POSTS & TELECOMM
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