高吞吐量抗干扰性物联网混合服务器协议设计

Design of Protocol for Internet of Things Hybrid Server with High Output Capacity and Anti-interference

为提高物联网混合服务器下各设备的智能管理效能,提出一种高效的时分多址协议即E-TD-MA协议,首先构建物联网系统框架模型,进行系统网络构架及协议设计,提出采用分布式协同调度的方法进行网络拓扑,对物联网节点随时加入和去除实现动态调整,仿真测试结果表明,缓存区里待发数据包数目明显少于传统TDMA协议和动态时分多址(DTDMA)协议,E-TDMA在前导时隙能及时调整时隙分配;同时E-TDMA吞吐量高于DTDMA和TDMA协议,饱和状态下吞吐量比传统方法提高了0.3Mbit/s,这是由于E-TDMA通过CDMA编码使得各单元能同时发送数据,频谱分析显示新算法抗干扰性更强,传输性能更优越。

An efficient time-division multiple address protocol that was called E-TDMA protocol was proposed based onthe improvement of the time division multiple address protocol. The model of Internet of Thins was constructed firstly, andthe improved protocol was designed based on the distributed coordinating network topology, the dynamic adjustment for thenodes in the network was realized. The indexes of the E-TDMA protocol based on the Internet of things such as throughputcapacity, network stability were tested with the simulation. Test result shows that the number of the data packets in the buffer cache is much less than the traditional TDMA protocol and the dynamical TDMA protocol with improving more than0.3Mbit/s. It is because that the E-TDMA can make all the units can send data in the same time through CDMS coding.