A Novel Enhanced Frameless Slotted ALOHA Protocol based on Network Status

Random multiple access is a candidate for next-generation multiple access because of its flexibility and simplicity. In this paper, we propose a novel random access scheme, each user holds a signature code as its ID decides whether to transmit or retransmit their packet based on its state and network status, while the receiver chooses to receive and provide feedback to the corresponding user based on the user’s state. We model the system as a Markov chain using a stochastic game, analyze its steady-state distribution, and theoretically analyze the performance of the network. In addition, we analyzed the optimal signature code capability. The simulation results match well with the theoretical analysis, and the proposed protocol significantly outperforms the existing protocols.