Opportunistic Forwarding Method Based on Energy Harvesting in Mobile Relay System
A technology of energy harvesting and mobile relay, applied in the direction of reducing energy consumption, advanced technology, electrical components, etc., to achieve the effect of increasing probability and improving use efficiency
Active Publication Date: 2017-02-15
ZHEJIANG UNIV
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Problems solved by technology
At present, there are many methods about opportunistic forwarding, but the existing methods do not take advantage of both energy harvesting technology and the mobility of nodes in the network
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[0024] Further illustrate the present invention below in conjunction with accompanying drawing.
[0025] The message transmission adopts the method of two-hop forwarding. The source node can copy the message to the relay node, and the relay node can only forward the message to the destination node. When the source node detects that the relay node enters the maximum transmission radius, it selects whether to forward the copy of the message according to a certain judgment criterion. When the relay node carrying the message packet moves within the maximum transmission radius of the destination node, the destination node receives the copy of the message.
[0026] Assume that there are N=40 mobile nodes in the network, among which there is one and only one pair of source node and destination node. In the mobile area of 600m×600m, each node moves at a constant speed, and the moving speed of the node obeys the uniform distribution v~U(0,20]m / s. The maximum emission radius of each ...
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The invention discloses a chance type forwarding method based on energy collection in a movable relay system. The method comprises the steps that a two-jump forwarding method is adopted, a message can be copied by a source node to a relay node, and the message is forwarded to a destination node by the relay node; when the source node detects that the relay node enters the range with the maximum emitting radius, whether the copied message is forwarded or not is selected according to a certain judging criterion; in judging criterion design, the movement speed of the relay node and the energy collection rate of the source node are considered, and the expected encountering speed between the source node and the relay node and the energy collection rate of the source node are compared so that a forwarding decision of the probability that the maximized message successfully reaches the destination node in required time delay can be made. The chance type forwarding method based on energy collection in the movable relay system can be applied to a wireless network with a movable relay and long permitted time delay and used for communication among the nodes.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to an opportunistic forwarding method based on energy collection in a mobile relay system. Background technique [0002] In recent years, as green environmental protection has become the consensus of the people, the state has put forward requirements and specific indicators for energy conservation and emission reduction. Although compared with coal, steel, non-ferrous metals, construction, transportation and other industries, the communication industry is not the most prominent problem of energy consumption and emission. However, the energy consumption of communication companies is not low, and it is also urgent to reduce radiation and communication interference. For operators, the communication industry as a whole is still in a stage of rapid development. The increase of users in emerging markets and the increase in bandwidth demand in developed markets will inevitably lead to...
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IPC IPC(8): H04W40/10H04W40/22
CPCY02D30/70
Inventor 卢玥王玮陈林张朝阳黄爱苹
Owner ZHEJIANG UNIV