A Channel State Information-Based Key Generation Scheme for Internet of Things

Algorithm 1

Pseudocode of the proposed scheme for the combined scenario.

(1)	let be estimated channel between and .
(2)	let is the transmitted signal with power, , and phase, .
(3)	let is the received signal with power, , and phase, .
(4)	for each transmission do
(5)	selects a sequence from RSS and lookup tables.
(6)	estimates the channel .
(7)	Using (8) and (9), calculates and of and transmits the signal.
(8)	extracts the phase, , and magnitude, , of the received signal, .
(9)	selects the sequences from RSS and lookup tables based on and .
(10)	end