Research on the cross-layer design of underwater acoustic networks

Cross-layer design is one of the most significant and urgently needed techniques for Underwater Acoustic Networks(UWANs).For the energy and bandwidth severely limited UWANs system,cross-layer design can effectively utilize the scarce resources in such special environment as underwater acoustic channels,overcome the disadvantages of the non-optimum and the inflexibility of the traditional layering network design,and optimize the functionality of the system.In this paper,we introduce recent advances in the cross-layer design of UWANs,propose a kind of dual-channel(a control channel and a data channel) cross-layer design for UWANs and analyze the advantages of our dual-channel cross-layer model.Based on the dual-channel cross-layer model,the paper provides an adaptive modulation and coding with practical applications.Some multiple-node self-organized networking experiments are conducted in the water pool and Xiamen waters.Promising experimental results are obtained and show that dual-channel cross-layer model could offer diverse applications in underwater acoustic networks in the future.