Journal of Jilin University(Engineering and Technology Edition) ›› 2020, Vol. 50 ›› Issue (5): 1886-1893.doi: 10.13229/j.cnki.jdxbgxb20190750

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Design of remote switching control algorithm for multi-band signal source in distributed communication network

Hai-yan CHEN1,2()   

  1. 1.School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China
    2.School of Telecommunication Engineering, Beijing Vocational College of Electronic Science and Technology, Beijing 102600, China
  • Received:2019-07-25 Online:2020-09-01 Published:2020-09-16

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Abstract:

The traditional multi-band signal source switching control algorithm can not achieve stable signal source switching in distributed communication network. To solve this problem, a remote switching control algorithm of multi-band signal source is proposed. The real-time signal is sampled by communication network monitoring equipment and the frequency band is calculated. Based on the transmission path of communication signal, the location of multi-frequency signal source is realized. The remote control equipment is installed and the trigger condition of switching control is set in it. Finally, the remote switching control of multi-frequency signal source is realized by switching the sequence of access points and the conversion control between voltage and current. In order to verify the feasibility of the designed remote handoff control algorithm, the anti-blocking performance and stability performance of the control were tested. The results show that the anti-blocking performance of the designed remote handoff control algorithm is 2.2% higher than that of the traditional handoff control algorithm, and the handoff control stability is higher.

Key words: distributed network, communication network, multi-band signal source, the remote control, switch control, switching the trigger condition

CLC Number: 

  • TP273

Fig.1

Working schematic diagram of signal source node monitoring equipment"

Fig.2

Schematic diagram of transmission signal frequency band"

Fig.3

Schematic diagram of switching trigger conditions"

Fig.4

Switch control algorithm implementation flow chart"

Fig.5

Schematic diagram of current and voltage control"

Fig.6

Experimental environment"

Table 1

Test results for switching control stability"

初始通信信号基于C#编程语言的切换控制算法分布式通信网络多频段信号源远程切换控制算法
信号接收功率/dBm信噪比/dB信号接收功率/dBm信噪比/dB
切换前5 s-89.689.14-89.687.08
切换前3 s-90.668.76-90.666.18
切换前1 s-92.258.08-92.254.59
切换后1 s-63.4416.37-86.3311.80
切换后3 s-25.681.25-86.1710.76
切换后5 s-83.4713.94-85.9210.63
丢包数据量/Mbit10.7412.493.282.75
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