Efficient wireless hidden transmission method based on unmanned aerial vehicle relay
A transmission method and UAV technology, applied in the field of efficient wireless covert transmission, can solve problems such as confidential information attack and security problems, and achieve the effect of saving energy consumption
Active Publication Date: 2021-05-28
FUZHOU UNIVERSITY
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Problems solved by technology
The second issue is that line-of-sight air-to-ground communication links also lead to more stringent security concerns for UAV communications than traditional terrestrial wireless communications, because UAVs transmit classified information when UAVs are within line-of-sight More vulnerable to malicious users
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[0065] In order to make the features and advantages of this patent more obvious and easy to understand, the following special examples are described in detail as follows:
[0066] like figure 1 As shown, this example provides an efficient wireless covert transmission method based on UAV relay, which specifically includes the following steps:
[0067] Suppose the UAV is flying at a fixed altitude of H meters and its maximum speed is V max m / s. The UAV starts from the initial position and returns to the initial position after sending data to each wireless sensor node. Assuming that the flight time of the UAV lasts for T seconds in total, for convenience, T is discretized into N time slots, that is, T=Nδ t , where δ t Indicates the basic slot length. Therefore, the trajectory q(t) of the UAV can be approximated by the sequence {q[n], 1≤n≤N}, Indicates the position of the UAV at time slot m. and with a constant transmission power P k and the designed transmission rate R ...
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The invention provides an efficient wireless hidden transmission method based on unmanned aerial vehicle relay, and the method comprises the steps: enabling an unmanned aerial vehicle to work in a full-duplex mode, and enabling the unmanned aerial vehicle to serve as a data transmitter for transmitting data to K transmission nodes on the ground; and in one time slot, appointing at most one transmission node to carry out data transmission. The unmanned aerial vehicle is provided with two transmitting antennas, one antenna is used for transmitting data, and the other antenna is used for generating artificial noise; and through a successive convex optimization technology, a transmission node wake-up time table, a flight path of the unmanned aerial vehicle and an actually constrained user scheduling strategy are jointly optimized to ensure that the transmission nodes receive data of the unmanned aerial vehicle with minimum energy consumption satisfying reliable transmission, and meanwhile, the unmanned aerial vehicle is ensured to send information to each specified transmission node in a hidden manner. According to the method, the energy consumption of the wireless sensing node can be remarkably saved, and the probability that the wireless sensing node is detected by a non-specified node is greatly reduced.
Description
technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to an efficient wireless covert transmission method based on unmanned aerial vehicle relay. Background technique [0002] Wireless sensor network is a fully distributed self-organizing network composed of a large number of tiny nodes. Each node integrates one or more sensors, embedded processors, memory, wireless communication modules, and power and power management modules. [0003] For a single node, due to its small size, it brings many resource constraints, such as: limited computing power, limited storage capacity, limited communication bandwidth and limited power supply. In these limitations, how to use the limited power reasonably and effectively is one of the hotspots in the research of wireless sensor networks. Because the environment of the area where the UAV sends data may be very harsh (such as battlefields, polar regions), technicians cannot...
Claims
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Login to View More IPC IPC(8): H04B7/185H04K1/02H04W4/029H04W4/40H04W52/02H04W84/18
CPCH04B7/18504H04K1/02H04W4/029H04W4/40H04W52/0248H04W84/18Y02D30/70
Inventor 胡锦松国明乾吴林梅颜世豪赵铁松陈由甲郑海峰
Owner FUZHOU UNIVERSITY