Cognitive energy-carrying relay communication method based on multi-time-slot wireless energy collection

A technology of cognitive relay and relay communication, applied in the field of wireless energy-carrying communication, can solve the problems of low energy collection and relay forwarding efficiency, and achieve the effect of improving relay forwarding efficiency and increasing energy acquisition.

Active Publication Date: 2019-12-20
ZHEJIANG UNIV OF TECH
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Aiming at the low efficiency of energy collection and relay forwarding in the existing cognitive energy-carrying relay communication method, the present invention provides a cognitive energy-carrying relay communication method based on multi-slot wireless energy collection

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  • Cognitive energy-carrying relay communication method based on multi-time-slot wireless energy collection
  • Cognitive energy-carrying relay communication method based on multi-time-slot wireless energy collection
  • Cognitive energy-carrying relay communication method based on multi-time-slot wireless energy collection

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] refer to Figure 1 ~ Figure 3 , a cognitive energy-carrying relay communication method based on multi-slot wireless energy collection is implemented based on an existing cognitive wireless communication system, and the cognitive energy-carrying relay system is composed of a main network and a cognitive network , where the primary network includes a primary user sending end PT and a primary user receiving end PR; the cognitive network includes a cognitive user sending node CT, a cognitive relay node CR, and a cognitive user receiving node CD.

[0035] In the method of this embodiment, the cognitive network judges whether the authorized spectrum of the main network is free through spectrum sensing, and if the authorized spectrum is occupied, the cognitive relay node CR collects the energy transmitted by the primary user sending end PT through wireless energy colle...

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Abstract

The invention discloses a cognitive energy-carrying relay communication method based on multi-time-slot wireless energy collection, and the method comprises the steps that a cognitive network judges whether an authorized spectrum of a main network is idle or not through spectrum sensing, and a cognitive relay node collects the energy transmitted by a main user transmitting end in a wireless energycollection mode if the authorized spectrum is occupied; otherwise, the cognitive network enters an energy-carrying relay communication mode, and the cognitive relay node forwards the information of the cognitive user sending node to the cognitive user receiving node by utilizing the collected energy. The cognitive relay node collects wireless energy through a plurality of time slots and forwardsinformation, so that more energy can be obtained, and the relay forwarding efficiency is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of wireless energy-carrying communication in cognitive wireless communication, in particular to a relay communication method based on cognitive energy-carrying. Background technique [0002] With the formation and rapid development of wireless networks, there are two real challenges in large-scale communication traffic. Firstly, wireless spectrum resources are scarce, and most of the allocated spectrum has not been fully utilized; secondly, the rapidly growing energy consumption increases communication costs and difficulties; cognitive radio technology allows cognitive users to Access to idle licensed spectrum can effectively improve the utilization of spectrum resources; wireless energy-carrying communication technology based on relay transmission can enable relay nodes to use the collected energy to assist in forwarding information through wireless energy collection, which can significantly improve communi...

Claims

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Application Information

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IPC IPC(8): H04W40/12H04W52/24H04W52/26H04W52/46H04B17/382H02J50/20
CPCH04W40/12H04W52/24H04W52/267H04W52/46H04B17/382H02J50/20
Inventor 李小燕卢为党斯沛远黄国兴张昱彭宏
Owner ZHEJIANG UNIV OF TECH
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