Symbol | Definition |
---|---|
T | Total transmission time of the frame |
h i | Channel coefficient of secondary user i |
| The set of secondary users |
b i | The bidding strategy of secondary user i |
b i k | The k th bidding strategy of secondary user i |
B i | The set of bidding strategy of secondary user i |
K i | The cardinality of B i |
u i | The utility reward to secondary user i |
v i | The monetary efficiency function of secondary user i |
C i | The channel capacity of secondary user i |
ρ i | The transmit power of secondary user i |
β i | The risk preference parameter of secondary user i |
| The bidding strategy of winner i |
θ i | The sensitive parameter of secondary user i |
U i | The utility function of secondary user i |
ω i | The ordered auction price parameter of secondary user i |
i ∗ | The index of the winning secondary users i |
bid i | The ordered (i th highest) bid of secondary user i |
Ω | The set of parameterized auction mechanisms |
M | The cardinality of Ω |
| The m th element in Ω |
r | The utility function of base station |
p ik | The probability of the k th bidding strategy of secondary user i |
p i | The probability distribution over B i |
q m | The probability of m th auction mechanism |
q | The probability distribution over Ω |
g i | The expected utility of secondary user i |
| The expected utility of the primary user |
γb(t) | The reaction of the primary user |
| The reaction of i∗ |
λ b | The normalized parameter of the primary user |
λ s | The normalized parameter of the secondary users |
δ b | The stepsize of the primary user |
δ s | The stepsize of the secondary users |
d i | The distance from the primary user to secondary user i |