Comparison of Performance between AND and Majority Logic Type Nonlinear Feedforward Logic Pseudonoise Sequence Generators

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概要

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• Two classes of nonlinear feedforward logic (NLFFL) pseudonoise (PN) code generators based on the use of AND and majority logic (ML) gates are compared. Cross-correlation and code-division multiple-access (CDMA) properties of properly designed NLFFL sequences are found to be comparable with the properties of well-known linear PN codes. It is determined that code design employing ML gates with an odd number of inputs is easier compared with designing with AND gates. This is especially true when the degree of nonlinearity is large, since the nonbalance problem, e.g., at the output of an AND gate, can be avoided. ML type sequences are less vulnerable to correlation attack and jamming by the m-sequence of an NLFFL generator.

• 一般社団法人電子情報通信学会の論文
• 1999-08-25

著者

• Karkkainen Kari

  Telecommunication Laboratory Department Of Electrical Engineering University Of Oulu

関連論文

• Linear Complexity of Binary Golay Complementary Sequences
• Comparison of Performance between AND and Majority Logic Type Nonlinear Feedforward Logic Pseudonoise Sequence Generators
• Meaning of Maximum and Mean-Square Cross-Correlation as a Performance Measure for CDMA Code Families and Their Influence on System Capacity (Special Issue on Spread Spectrum Techniques and Applications)

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