基于 DSC－MIMO 的无线传感器网络通信策略研究

摘要

Because the energy of wireless sensor network sensor node was limited, reducing power consumption becomes the focus on improving energy efficiency.Under the condition of existing hardware, the main energy saving methods were changing the mode of communication and reducing the amount of data transmission.At present, the wireless sensor network communication strategy generally used GCMIMO.Based on the research status at home and abroad, the communication strategy was improved by using virtual multi-input and distributed source coding, which reduced the data length and energy consumption.The improved DSC-MIMO allocation algorithm was designed and the Matlab software was used to simulate the energy consumption.Research shows that compared with GCMIMO and CIMO, DSC-MIMO communication strategy has the highest energy efficiency and energy saving effect is obvious.%由于无线传感器网络节点能量补充受到限制，降低传感器节点功耗成为提高能效的重点。在现有硬件条件下，主要节能方法为改变通信方式和减少数据传输量。目前，无线传感器网络通信策略一般采用GCMIMO。基于国内外研究现状，采用虚拟多入多出技术和分布式信源编码对通信策略进行改进，减少了数据长度，降低了无线传感器网络能效。设计了改进的DSC－MIMO 分配算法，并利用Matlab软件进行能效仿真。研究表明：与GCMIMO和CIMO相比，DSC－MIMO通信策略能量效率最高，节能效果明显。