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A method for antenna selection and resource allocation in a wireless powered communication network

A communication network and wireless energy supply technology, applied in wireless communication, radio transmission system, diversity/multi-antenna system, etc., can solve problems such as limited battery life of equipment and constraints on the development of wireless communication technology, and achieve easy implementation and low complexity , the effect of fast convergence speed

Active Publication Date: 2022-07-29
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0002] Limited device battery life is a constant constraint on the development of modern wireless communication technologies

Method used

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  • A method for antenna selection and resource allocation in a wireless powered communication network
  • A method for antenna selection and resource allocation in a wireless powered communication network
  • A method for antenna selection and resource allocation in a wireless powered communication network

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] The architecture of the cognitive wireless network of the present invention is as follows figure 2 As shown, the cognitive wireless power supply network is a multi-user network architecture based on orthogonal frequency division multiplexing technology, including a hybrid access point, K users are connected to the hybrid access point, and each user has two Antennas for transmitting and receiving radio frequency signals;

[0050] The flow of this method is as follows figure 1 shown

[0051] First set the parameters: set h a，k，n represents the channel gain between the hybrid access point on the nth subcarrier and the ath antenna of the kth user, I k，n represents the self-interference channel gain between the two antennas of the kth user on the nth subcarrier; h a，k，n and I k，n All are known parameters known in advance; represents the power of the kth user ...

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Abstract

The present invention provides an antenna selection and resource allocation method in a wireless energy supply communication network. The wireless energy supply communication network constructed by the method is a multi-user network architecture based on the orthogonal frequency division multiplexing technology, including a hybrid access point, There are K users connected to the hybrid access point, and each user has 2 antennas for sending and receiving radio frequency signals. Based on self-energy recovery technology, this method maximizes the total data rate of users under energy causal constraints through joint antenna selection and resource optimization, improves the resource allocation efficiency in wireless power communication networks, and maximizes the total data rate of all users. rate.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to an antenna selection and resource allocation method in a wireless power supply communication network. The method can be implemented in a wireless power supply communication network based on self-energy recovery technology, and combines antenna selection and network resource allocation , maximizing the user transmission data rate. Background technique [0002] The problem of limited device battery life has been a constraint on the development of modern wireless communication technology. The emergence of radio frequency wireless energy transmission technology provides a feasible way to solve this problem, and then based on this technology, a communication architecture called wireless energy supply communication network appears. In this architecture, wireless devices use the energy collected by radio frequency signals to transmit information, which is of great ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04B7/0404H04B7/06
CPCH04B7/0404H04B7/0602H04W72/53
Inventor 徐鼎王立朱晓荣
Owner NANJING UNIV OF POSTS & TELECOMM