基于OPNET的高频通信协议仿真与分析

doi:10.16180/j.cnki.issn1007-7820.2020.12.002

Abstract

Abstract:

Because of the undestructibility of ionospheric channel, it is very important to study short-wave communication protocol in the field of emergency communication. Based on the third-generation short-wave automatic link protocol, this paper studies and analyzes the multi-access technology with the new technology. The feasibility of the scheme is verified using OPNET Modeler 14.5 network simulation platform. In the short-wave communication network model, the pipeline mechanism uses the long-term channel prediction software VOACAP to obtain the ionospheric channel quality parameters for wireless channel modeling. The core function and C programming language are adopted to establish the 3g-ale node model and the related process model and network model. Simulation experiments show that the channel quality has the most significant effect on the successful ratio of the chain between network nodes, and the number of network nodes and the distance between two nodes have the lower effect.

Key words: short-wave communication, multiple access, OPNET, VOACAP, successful ratio of link establishment

CLC Number:

TN924

XUE Huanjie,CHEN Xiaoli,GUAN Boran. Simulation and Analysis of HF Communication Protocol Based on OPNET[J].Electronic Science and Technology, 2020, 33(12): 7-11.

Figures/Tables 9

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References 19

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优先级	Slot1	Slot2	Slot3	Slot4	Slot5	Slot6
最高级	0.40	0.15	0.15	0.15	0.10	0.05
高级	0.15	0.40	0.15	0.15	0.10	0.05
低级	0.05	0.10	0.40	0.15	0.15	0.15
最低级	0.05	0.10	0.15	0.40	0.15	0.15

State	Event	Final State
	Link request (CALL_PKT_ARVL) (SLOT_INTRPPT)	Send call pkt to upperlevel(Call_Rcvl) (Tx_Call_pkt)
	Handshake request (HSPKT_ARVL) (HSPKT_TX)	Send handshake request to low level (HSPKT_ARVL) (TX_Handshake)
	Receive link request (RX_CALL_ARVL)	Activate link request (RX_CALL_AR)
	Receive Handshake request (RX_HANDSHAKE_ARVL)	Activate handshake request (RX_HANDSH)
	Simulation end (END_SIM)	Statiscal parameters (recoder_stats() ) (END)

Simulation and Analysis of HF Communication Protocol Based on OPNET

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