Abstract
A search method of the complex-valued spreading sequences that exhibits good correlation property for the code division multiple access (CDMA) communication, is investigated in terms of Genetic Algorithm (GA). The search problem of the spreading sequence is formalized as the combinatorial optimization problem that maximizes the fitness function for correlations. To solve this problem, a search method of suboptimal solutions based on simple GA is designed. As results, obtained suboptimal solutions are evaluated by their correlation characteristics and bit error rate (BER) for the CDMA communication.
