Method for cooperative communication power allocation in multichannel cognitive radio network

Abstract

The invention relates to method for cooperative communication power allocation in a multichannel cognitive radio network. The method for achieving optimum allocation of user power in the cognitive network environment comprises the following steps: 1 a master user and a subordinate users of the network are set according to the cooperative communication requirement of the multichannel cognitive radio network; 2 the subordinate users confirm transmitting speed according to channel gain, bandwidth and other conditions; 3 the subordinate users confirm corresponding power expected to be allocated according to the transmitting speed and the power price set by the master user; 4 the master user utilizes a power auction algorithm to confirm power allocated to each subordinate user. By adopting the method for the cooperative communication power allocation in the multichannel cognitive radio network, the improvement of the transmission rate of the subordinate users is achieved on the premise that the mater user transmission quality (QoS) is ensured, the achieving process is simple, distributed solution is facilitated, and the spectrum resource utilization rate is effectively improved.

Description

technical field The invention relates to a cooperative communication power allocation method in a multi-channel cognitive radio network, belonging to the field of resource allocation in wireless communication networks. technical background The radio spectrum resource is a limited natural resource, generally authorized by the government. With the rapid development of wireless communication technologies, spectrum resources are becoming more and more scarce, and a large number of licensed spectrums are idle or have extremely low utilization. Especially with the development of Wireless Local Area Network (WLAN) technology, Wireless Personal Area Network (WPAN) technology, and Wireless Metropolitan Area Network (WMAN) technology, more and more people access the Internet wirelessly through these technologies. Most of these network technologies operate using the unlicensed frequency band (UFB). Due to the rapid development of these wireless communication services, the unlicensed ...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to provide a cooperative communication power allocation method in a multi-channel cognitive radio network for problems such as high computational complexity and no consideration of fully utilizing resources in the multi-channel cognitive radio network when assigning power from users

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