A wireless energy-carrying cooperative communication method

Abstract

The invention discloses a wireless energy-carrying cooperative communication method comprising the steps of acquiring radio frequency interference parameter information and link channel l statistic parameter information of a communication system; separately acquiring instantaneous channel state information of a link from source end to a target end, instantaneous channel state information of a linkfrom the source end to a relay end and instantaneous channel state information of a link from the relay end to the target end in the communication system within a current time frame; separately computing the reachable rate of the link from the source end to the target end, the reachable rate of the link from the relay end to the target end and the reachable rate of the link from the source end tothe relay end; if the relay end has an information forwarding condition, transmitting the information of the source end to the target end via the relay end; and otherwise, directly transmitting the source end to the target end. According to the wireless energy-carrying cooperative communication method provided by the invention, the enhancement of the throughput of the communication system is achieved through improving the energy collection capacity of the relay end by using the radio frequency interference signal.

Description

technical field [0001] The present invention relates to wireless communication technology, in particular to a wireless energy-carrying cooperative communication method. Background technique [0002] In wireless sensor networks, due to the size limitation of sensor nodes, it is often impossible to equip two or more antennas. Therefore, it is difficult to achieve spatial diversity through multiple-input multiple-output technology, and the improvement of system performance is greatly restricted. Another form of space diversity—cooperative diversity can be realized by using wireless cooperative relay, which can improve the coverage of wireless sensor networks, reduce the power consumption of sensor nodes and increase network capacity at low cost. Therefore, wireless cooperative relay technology is a key technology for wireless sensor networks to maintain connections between nodes, prolong network life and improve network capacity. However, since cooperative relays need to consu...

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a wireless energy-carrying cooperative communication method, which solves the problem of poor system throughput performance caused by insufficient energy collection at the relay end and weak information forwarding capability in the prior art

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