united implementing method for node transmitting power and relay node position disposition of AF bidirectional relay communication system

A transmit power control, relay node technology, applied in the direction of location diversity, power management, diversity/multi-antenna system, etc.

Active Publication Date: 2015-11-18
NANTONG UNIVERSITY
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Problems solved by technology

However, the combination of the two is seldom considered from the perspective of green energy saving

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  • united implementing method for node transmitting power and relay node position disposition of AF bidirectional relay communication system
  • united implementing method for node transmitting power and relay node position disposition of AF bidirectional relay communication system
  • united implementing method for node transmitting power and relay node position disposition of AF bidirectional relay communication system

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Embodiment Construction

[0088] like figure 1 As shown, the source nodes A and B need to occupy two consecutive time slots of equal length to complete an exchange of information. At the beginning of the first time slot, source nodes A and B and relay node R need to check Which interval is the value of , and then decide to calculate the respective transmit power according to formula (6), formula (7) or formula (8). In addition, the relay node R will also be based on The value of , decides to calculate the distance d between itself and the source node A according to formula (3), formula (4) or formula (5) AR , on this basis, calculate the distance d between itself and the source node B BR = d AB -d AR , to complete the deployment of the relay location. Then, the source nodes A and B send their respective information to the relay node R at the same time. In order to complete the above operations, nodes A, B and R need to know d AB , η, α, λ 1 , lambda 2 and S Q value of . Actually, S Q is ...

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Abstract

The invention discloses a united implementing method for node transmitting power and relay node position disposition of an AF bidirectional relay communication system. The method adjusts the transmitting power of a network node and the position of a relay node in a united manner according to statistic channel state information and a system target rate by using a minimized system transmitting power as a goal and a system QoS requirement as a limited condition so as to minimize system total transmitting power while satisfying the system QoS requirement.

Description

technical field [0001] The invention relates to a joint realization method of node transmission power control and relay position deployment of an AF (Amplify-and-Forward) two-way relay system, and belongs to the technical field of wireless communication. Background technique [0002] At the beginning of this century, researchers proposed a cooperative diversity (relay) technology to solve the problem that small mobile terminals cannot be equipped with multiple antennas. Different from traditional point-to-point communication, cooperative diversity technology allows different user nodes in a wireless network to share each other's antennas and other network resources, which is expected to greatly increase the capacity and multiplexing gain of wireless networks. At the same time, it also has great development potential in anti-channel fading, covering shadow areas, expanding the effective coverage radius of wireless cellular systems, and enhancing data rates in specific areas. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/02H04W52/22H04W52/24
CPCH04B7/026H04W52/225H04W52/241
Inventor 吉晓东包志华章国安曹张华
Owner NANTONG UNIVERSITY
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