MUSA System Based on Extended Sequences Optimization and User Rate Power Allocation

In recent decades, wireless communication systems have rapidly developed alongside the increasing demand for mobile Internet and Internet of Things services. To address the explosive growth of mobile network users and mobile data information, the fifth generation mobile communication technology (5G) has introduced several new access technologies. Multi-user shared access (MUSA) technology, which utilizes complex domain extension sequences in the transmitter, is widely studied. This paper applies 5-ary complex sequences to the transmitter and optimizes the new extended sequences. Additionally, an adaptive power allocation algorithm is proposed based on the optimized sequences, which can satisfy the needs of multiple users and multiple rates, achieving the performance optimization of the MUSA system.