Table 2 Additional system parameters with MAC channel
From: Channel direction information probing for multi-antenna cognitive radio system
k∈{A,B} | PT A or B under MAC channel |
|---|---|
λ u,k | the channel gain from the PT k to the PR |
λ f,k | the channel gain from the PT k to the ST |
y mac | the received signal at the ST |
y i,m a c | the received signal at the ST under the ith type of probing |
signal | |
P f,k | the received signal power at the ST from the PT k |
P t,i,k | the transmit power at the PT k under the ith type of probing |
signal | |
ρ k | the target SINR at the PR from the PT k |
I i,k | the interference at the PR for the PT k led by the ST under |
the ith type of probing signal | |
g k | the probing gain via the PT k |
Ξ i,m a c | the hidden feedback information to the ST under the ith |
type of probing signal |