Patent ID: 11888590
Assignee: RESEARCH COOPERATION FOUNDATION OF YEUNGNAM UNIVERSITY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. The channel hopping-based jamming defense system of claim 2, wherein:
the access point compares the signal reception strengths for each of the plurality of messages transmitted and received to and from the user node at the current time point to the signal strength comparison range information,
when the signal reception strength of a message is in a range between the upper limit line and the lower limit line, a key value corresponding to the message is not assigned,
when the signal reception strength of the message exceeds the upper limit line, the key value corresponding to the message is set to 1,
when the signal reception strength of the message is lower than the lower limit line, the key value corresponding to the message is set to 0,
the access point generates the AP secret key value by sequentially combining the key values respectively set for the each of the plurality of messages, and
the user node compares the signal reception strengths for each of the plurality of messages transmitted and received to and from the access point at the current time point to the signal strength comparison range information, and generates the user node secret key value by sequentially combining key values respectively set in a same manner as the access point.