An Adaptive Modulation Coding Cross-Layer Optimization Strategy with Packet Successful Transmission and Delay Constraints

Based on the analysis of the data link layer buffer queue state and the impact of application layer data flows on the physical layer of wireless communication nodes, this paper analyzes the restriction of communication link delay on the transmit power of nodes. Building on this analysis, a cross-layer optimization strategy is proposed with the goal of maximizing energy efficiency (EE), which selects the optimal adaptive modulation and coding (AMC) switching threshold and optimal power selection while considering the constraints of successful packet transmission rate and communication link delay. Finally, simulations are conducted to demonstrate the significant EE advantages of the proposed cross-layer optimization strategy.