Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Thirteen Channel Coding and Encryption.

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Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Chapter Thirteen Channel Coding and Encryption

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Square array for error correction by parity checking Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Interleaved check bits for error control with burst errors Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. FEC system Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ARQ system Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ARQ schemes (a) stop-and-wait (b) go-back (c) selective repeat Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Convolutional encoder with n=2, k=1, and L=2 Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. (a) Code trellis (b) state diagram for (2, 1, 2) encoder (c) illustrative sequence Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Termination of (2, 1, 2) code trellis Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Encoder subject to catastrophic error propagation (a) encoder (b) state diagram Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Illustration of the Viterbi algorithm for maximum- likelihood decoding Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Turbo encoder Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. RSC encoder with Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Turbo decoder Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Secret key system Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Public/private key system Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Permutation examples (a) straight (b) expanded (c) compressed Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. S-box example Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. DES flowchart Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Substitute and permute block Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Key generator flowchart Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. 32 to 48 bit expansion Figure

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Details of 48 to 32-bit S-box Figure

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