Research Article

Intelligent Process of Spectrum Handoff/Mobility in Cognitive Radio Networks

Table 2

The symbols in the equations used.

SymbolDefinition

The probability of having k arrivals in a time slot τ
Arrival rate
Probability for that channel i to be inactive or active for a certain time τ
The time of arrival of the kth data packet on the channel
The kth information packet dimension of the PU on the channel i
MThe state of the channel, which is a random variable in binary form (0 and 1), indicating the inactive state and the active state
τTime
iThe number of channels
The probability density function
The time of waiting
The probability limit below which a channel is considered active
The probability limit that the channel should be considered inactive
Probability limit that the channel is considered inactive
The length of a frame plus a time slot ()