Title :
Design of piece-wise maps for spread spectrum communication using genetic programming
Author :
Varadan, Vinay ; Leung, Henry
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta., Canada
Abstract :
The design of piece-wise maps for code generation in Direct Sequence Spread Spectrum (DS/SS) systems is a challenging problem. We propose the use of genetic programming (GP) to design maps that can be used for the generation of codes in DS/SS systems. Using appropriate functional operators, we use GP to construct exploitable maps of the interval [0,1]. The search is directed based on a multi-objective genetic programming framework with the two criteria being the average auto-correlation and cross-correlation performance of the maps
Keywords :
code division multiple access; correlation theory; encoding; evolutionary computation; nonlinear dynamical systems; piecewise polynomial techniques; sequences; spread spectrum communication; telecommunication computing; tree data structures; tree searching; DS-SS communication; autocorrelation performance; code generation; crosscorrelation performance; exploitable maps; functional operators; genetic programming; multiobjective genetic programming; nonlinear dynamical system; piece-wise maps design; search paradigm; tree structure; Autocorrelation; Chaotic communication; Communication systems; Computational modeling; Genetic programming; Nonlinear dynamical systems; Spread spectrum communication; Stochastic resonance; Tree data structures; White noise;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921288
