Collaborative Coding Multiple Access Using Adaptive Quadriphase Coding

摘要

An approach for adaptively multiplexing T of N users in a modulatea,Multiple Access communications system is described. Using a new family of Complex Quadriphase sequences, a Collaborative Codes Multiple Access system is constructed. The technique, devised for channels with high utilization requirements, exploits the high sum rate of CCMA and the adaptive characteristics NPC SSMA sequences. A system model is demonstrated which allows the channel to be optimized based on channel noise constraints, fidelity requirements, and the number of users.