Interference blocking scheme switching method for uplink secure transmission of millimeter wave cellular network
A technology of interference blocking and cellular network, which is applied in the direction of communication interference, security devices, and services based on location information. It can solve the problems of millimeter wave cellular network security, achieve low implementation complexity, and improve power utilization. , the effect of reducing system overhead
Active Publication Date: 2021-09-07
XI AN JIAOTONG UNIV
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Problems solved by technology
[0005] The purpose of the present invention is to provide a method for switching interference and blocking schemes for secure uplink transmission of millimeter wave cellular networks, which solves the security problems of uplink transmission in existing millimeter wave cellular networks
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[0108] The simulation experiment verifies the effectiveness and achievability of this patent switching scheme. The transmit power P used in this embodiment t = 30dBm, noise power σ 2 = -100dBm, base station antenna number N b = 3, path decline index α L = 2.1, α N = 3.5, the base station beam forms the side lobe and the main flap gain ratio x = 0.2. K (k = 4) is randomly distributed each time in the numerical simulation, and each set of interference noise power is achieved for 1000 times.
[0109] figure 2 The computer simulation result of the present invention is given, and the interference communication with non-blocking communication is given, and only cooperative user interference blocked and the whole duplex base station interference blocking scheme is compared. The simulation parameters under these four methods are exactly the same, and the abscissa in the figure indicates the interference noise power (cooperative user emission or base station emission). As can be seen from...
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An interference blocking scheme switching method for uplink secure transmission of a millimeter-wave cellular network provided by the present invention specifically includes the following steps: Step 1, taking the optimal cooperative user among K-1 cooperative users to perform interference blocking and the full-duplex interference of the base station Blocking is respectively used as the interference blocking scheme; step 2, calculate the security throughput of the communication link when the K-1 cooperative users interfere in step 1, and use the cooperative user corresponding to the maximum safe throughput as the interference node of the interference blocking scheme; at the same time , calculate the security throughput when the base station is full-duplex interference in step 1; step 3, compare the communication link security throughput obtained in step 2 with the communication link throughput when the base station interferes, and compare the maximum security throughput corresponding to The interference blocking scheme is used as the interference blocking scheme of the current time slot; the present invention takes the security throughput as the evaluation index, and performs efficient and flexible switching between the above two interference blocking schemes by using the user location information, so that the system always works in a safe state. In an environment with optimal throughput.
Description
Technical field [0001] The present invention relates to secure transmission of a physical layer issues a wireless communication, more particularly to a millimeter wave cellular network uplink transmission interference block security scheme switching method. Background technique [0002] Wireless communication to people's lives has brought great convenience, it has been widely applied to all aspects of people's lives. But people increasingly nervous about the ever-expanding network speed and traffic demand, and makes microwave frequency band resource allocation in a sharp increase in the number of networks, the development of more high-frequency millimeter wave band is imperative. Millimeter wave communication capable of providing wide band of 30GHz-300GHz, and the wavelength is reduced so that the size of the antenna miniaturization possible, a millimeter wave can be configured to support large-scale antenna array, to provide ultra-high array gain. Based on the above advantages, ...
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IPC IPC(8): H04W12/03H04K3/00
CPCH04K3/62H04W4/02H04W12/03
Inventor 郑通兴刘浩文
Owner XI AN JIAOTONG UNIV