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Energy acquisition cooperative network resource distribution method based on information and energy transmission

A technology of resource allocation and energy collection, applied in the directions of location diversity, wireless communication, and energy consumption reduction, which can solve the problems of halving the spectral efficiency, the inability to guarantee fairness between users, and the inability to effectively utilize multiple input and multiple output. , to achieve the effect of improving spectrum utilization

Active Publication Date: 2017-10-20
广州市埃特斯通讯设备有限公司
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Problems solved by technology

[0003] However, there are some problems in the existing technical solutions: there is a large gap between the establishment of a single-user model and the actual application, so it is necessary to consider a multi-user transmission system; a simple multi-user non-cooperative mode transmission system cannot effectively play multiple roles. The advantages of input multiple output (MIMO) technology, gain diversity and multiplexing gain; although some cooperative transmission considers the multi-user model, maximizes the user and rate, and obtains the optimal power division ratio and optimal power allocation, but The minimum rate constraint of each user is not considered, which makes the fairness between users cannot be guaranteed, resulting in users with good channel conditions getting higher transmission rates, and users with poor channel conditions may not be served
With the traditional forwarding protocol, due to the half-duplex characteristics of the relay, although the system performance is improved, the spectral efficiency will be halved

Method used

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  • Energy acquisition cooperative network resource distribution method based on information and energy transmission
  • Energy acquisition cooperative network resource distribution method based on information and energy transmission
  • Energy acquisition cooperative network resource distribution method based on information and energy transmission

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Embodiment Construction

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0040] The application principle of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] S101: Introduce an incremental strategy binary variable, the binary variable indicates the second time slot transmission mode, when the first time slot adopts the direct transmission mode, the second time slot sends new data; when the second time slot adopts the forwarding mode When the second time slot relays and forwards the information to the destination end;

[0042] S102: Find the best power division ratio in the relay cooperative transmission process, and the relay...

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Abstract

The invention belongs to the field of cooperative transmission technology, and discloses an energy acquisition cooperative network resource distribution method based on simultaneous transmission of information and energy. The method comprises the steps of acquiring channel state information on each sub-carrier in a transmission time slot; according to a resource distribution algorithm, calculating optimal power distribution on each sub-carrier and determining sub-carrier distribution, increment strategy and optimal power splitting ratio; in a first time slot in a useful data transmission process, broadcasting data in each sub-carrier according to a calculated power, receiving by a relay and a target end; wherein a relay forwarding strategy is utilized, one part of the source transmitting power is used for information transmission of the time slot, and the other part is acquired by the relay for information transmission of a next time slot; and the increment strategy determines a transmission strategy of the second time slot, namely the relay forwards the information to a target end according to the calculated power or transmits new data to the target end according to the power which is obtained through calculation. The energy acquisition cooperative network resource distribution method improves system capacity and spectrum utilization rate on the condition that a requirement for lowest rate of each user is satisfied.

Description

technical field [0001] The invention belongs to the technical field of cooperative transmission, and in particular relates to a resource allocation method for an energy harvesting cooperative network based on the simultaneous information and energy transmission (SWIPT) technology. Background technique [0002] At present, in the wireless transmission network with the introduction of SWIPT technology, the resource allocation scheme in the cooperative transmission mode has considered the power allocation and power division ratio (PS) on the multi-carrier in the single-user system, or the multi-carrier in the single-user system. Power allocation and time division ratio (TS), or the multi-user system in non-cooperative mode jointly considers power allocation, power division ratio and subcarrier allocation to achieve system energy efficiency or maximize system capacity. The transmission technology scheme generally adopts PS protocol, TS protocol. In addition, most of the establi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04B7/026
CPCH04B7/026H04W72/53Y02D30/70
Inventor 张阳韩芮雨庞立华栾英姿白开阳
Owner 广州市埃特斯通讯设备有限公司
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