Fig 1.
The AWGN channel with intermittent feedback.
Fig 2.
Comparison of and
for various N and P = 10 dB,
,
,
.
Fig 3.
The relationship between , Pe and N for P = 5 dB,
dB,
, and
.
Fig 4.
The relationship between , Pe and N for P = 5 dB,
, and
.
Fig 5.
Comparison of and
under different feedback failure probabilities and P = 10 dB,
dB,
,
.
Fig 6.
Performance comparison for , P = 10 dB,
.
Fig 7.
Performance comparison for , P = 10 dB,
.
Fig 8.
Performance comparison for , P = 10 dB,
.
Fig 9.
The quasi-static fading channel with intermittent feedback.
Fig 10.
Comparison of and
for various N and P = 10 dB,
,
,
,
.
Fig 11.
The relationship between , Pe and N for P = 10 dB,
,
, and
.
Fig 12.
The relationship between , Pe and N for P = 10 dB,
dB,
,
, and
.
Fig 13.
Comparison of and
under different feedback failure probabilities and P = 10 dB,
dB,
,
,
.
Fig 14.
The fading wiretap channel with intermittent noiseless feedback.
Fig 15.
The fading wiretap channel with intermittent noisy feedback.
Fig 16.
The relationship between , Pe and N for P = 10 dB,
,
, k = 1,
,
and
.
Fig 17.
The relationship between, Pe and N for P = 10 dB,
dB,
,
,
,
, k = 1 and
.
Fig 18.
The impact of N on security level under different P and
, k = 1,
,
,
,
and
.
Fig 19.
The impact of N on security level under different P and
, k = 1,
,
,
,
and
.
Fig 20.
The impact of instant k on security levels and
under different feedback failure probabilities and P = 10 dB,
dB,
,
, N = 400,
,
and
.