EUROCODE '90: International Symposium on Coding Theory and Applications Udine, Italy, November 5–9, 1990 Proceedings

Concatenated spherical codes codes sphériques concaténés....Pages 1-5
A note on automorphism groups of codes and symbol error probability computation....Pages 6-20
A direct proof for the automorphism group of reed solomon codes....Pages 21-29
A family of binary codes with asymptotically good distance distribution....Pages 30-41
A transformation on boolean functions, its consequences on some problems related to reed-muller codes....Pages 42-50
Covering radius of RM(1,9) in RM(3,9)....Pages 51-59
The weights of the duals of binary bch codes of designed distance δ=9....Pages 60-64
The minimum distance of some binary codes via the newton\'s identities....Pages 65-73
Minimum-change binary block-codes which are well balanced....Pages 75-86
Construction of unequal error protection codes....Pages 87-93
Unidirectional error detecting codes....Pages 94-105
Coherent partitions and codes....Pages 106-113
 $$\\frac{1}{\\lambda }$$ -regular and $$\\frac{1}{\\lambda }$$ -homogeneous tournaments....Pages 114-125
Decoding of codes on hyperelliptic curves....Pages 125-134
Decoding of codes on the klein quartic....Pages 135-149
Asymptotically good families of geometric goppa codes and the gilbert-varshamov bound....Pages 150-157
Multiplicative character sums and non linear geometric codes....Pages 158-165
A survey of identification schemes....Pages 167-179
A correlation cryptographic scheme....Pages 180-192
Pseudorandom permutations based on the D.E.S. scheme....Pages 193-204
Linear complexity of transformed sequences....Pages 205-214
Some remarks on a LFSR “disturbed” by other sequences....Pages 215-221
Parameters for complex FFTs in finite residue class rings....Pages 222-226
A cryptographic tool for programs protection....Pages 227-240
Decoding techniques for convolutional codes....Pages 242-258
A weighted-output variant of the viterbi algorithm for concatenated schemes using a convolutional inner code....Pages 259-270
Coded modulation with convolutional codes over rings....Pages 271-280
A shannon-theoretic coding theorem in authentication theory....Pages 282-291
Joint fractional entropy....Pages 292-297
On the adaptive source coding....Pages 298-308
Minimum codeword length and redundancy of Huffman codes....Pages 309-317
Binary covering codes and high speed data transmission....Pages 319-336
Coding and modulation for the gaussian channel, in the absence or in the presence of fluctuations....Pages 337-349
Comparison of two modulation-coding schemes for low-rate digital land mobile radiocommunication....Pages 350-363
Chernoff bound of trellis coded modulation over correlated rayleigh channel....Pages 364-376
A hybrid FEC-ARQ communication system using sequential decoding....Pages 377-384
A 30 Mbits/s (255,223) reed-solomon decoder....Pages 385-392