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在无线三节点网络以及线性网络模型中,采用物理层网络编码技术可以大大提高网络的吞吐量。然而,实际网络中不仅仅限于线性网络,比如星型网络中,如何通过物理层网络编码技术以降低信息交互的时隙从而提高通信有效性是非常有意义的研究课题。文章以四节点网络模型为例,通过设计一种新的调制方式,实现了两时隙信息的完全交互,与采用传统网络编码四时隙信息交互方式相比,减少了通信时隙,提高了网络的吞吐量。
In the wireless three-node network and linear network model, the use of physical layer network coding technology can greatly improve the network throughput. However, the actual network is not limited to a linear network. For example, in a star network, how to reduce the time slot of information exchange to improve the communication efficiency through the physical layer network coding technique is a very significant research topic. Taking a four-node network model as an example, this paper designs a new modulation scheme to realize the complete interaction of two time slots information. Compared with traditional network coding four-slot information exchange mode, the paper reduces the communication time slot and improves Network throughput.