Feedback in wireless networks: cross-layer design, secrecy and reliability
Praveen Kumar Gopala · OhioLink ETD Center (Ohio Library and Information Network) · 2007
Figure Page 2.1 Comparison of the average throughput of the proposed static multicast schedulers (best, worst and median user schemes), incremental redundancy multicast and cooperative multicast . . . . . . . . . . . .31 2.2 Comparison of the average delay of the proposed static multicast schedulers (best, worst and median user schemes), incremental redundancy multicast and cooperative multicast . . . . . . . . . . . . . . . . . .32 2.3 Comparison of the throughput of the best and worst user schedulers for the multi-transmit antenna scenario, with L transmit antennas at the base station . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 3.1 The Fading Channel with an Eavesdropper . . . . . . . . . . . . . . .37 3.2 Comparison of the perfect secrecy rates achieved by the proposed schemes (under different assumptions on the available transmitter CSI) for the symmetric scenario γ M = γ E = 1 . . . . . . . . . . . . . . . .51 3.3 Comparison of the perfect secrecy rates achieved by the proposed schemes (under different assumptions on the available transmitter CSI) for the asymmetric scenario γ M = 1 and γ E = 2 . . . . . . . . . . . .52 3.4 Comparison of the perfect secrecy rates achieved by the proposed IR-ARQ and Rep-ARQ schemes for the symmetric scenario γ M = γ E = 1 53 3.5 Comparison of the perfect secrecy rates achieved by the proposed IR-ARQ and Rep-ARQ schemes for the asymmetric scenario γ M = 1 and γ E = 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54 xiii 4.1 Comparison of the error exponents for a Binary Symmetric Channel (BSC) with cross-over probability = 0.15 and maximum number of ARQ rounds L = 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .70 4.2 Comparison of the error exponents for a Binary Symmetric Channel (BSC) with cross-over probability = 0.15 and maximum number of ARQ rounds L = 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . .71 4.3 Comparison of the error exponents for a Very Noisy Channel (VNC) with capacity C = 1 and maximum number of ARQ rounds L = 2 . .74 4.4 Comparison of the error exponents for a Very Noisy Channel (VNC) with capacity C = 1 and maximum number of ARQ rounds L = 4 . .75 4.5 Comparison of error exponents for an Additive White Gaussian Noise (AWGN) channel with Signal-to-Noise Ratio SNR = 3 dB and maximum number of ARQ rounds L = 2 . . . . . . . . . . . . . . . . . .78 4.6 Comparison of error exponents for an Additive White Gaussian Noise (AWGN) channel with Signal-to-Noise Ratio SNR = 3 dB and maximum number of ARQ rounds L = 4 . . . . . . . . . . . . . . . . . .