基于区块链的轮询系统MAC协议研究

Research on MAC protocol of polling system based on blockchain

针对网络信息传输量扩大、数据传输效率降低的问题,提出将区块链与轮询系统结合的MAC协议.首先,研究了基于区块链的轮询系统模型,并对其数据分发方式进行分析;然后,推导了门限、完全和限定K=1服务系统的平均排队队长、平均等待时间和平均循环周期的理论表达式;最后,通过Matlab将期望值与实验值进行对比分析.结果表明,随着到达率的增加,加入轮询MAC协议后的区块链系统信息传输效率明显提高.综合对比实验结果,在保证公平性的基础上,门限服务系统在加快信息处理速度,改善系统性能方面比另外两种服务策略更为稳定.

To solve the problem of the expansion of network information transmission and the reduction of data transmission efficiency,a MAC protocol that combines blockchain and polling system is proposed.First,the polling system model based on blockchain is studied,and its data distribution method is analyzed.Then the theoretical expressions of the average queue length,the average waiting time,and the average cycle period of the Gated,the Exhaustive,and the Limited-K service system are derived.Finally,the theoretical value and the experimental simulation value are compared and analyzed by Matlab.The results show that with the increase of the arrival rate,the polling system after joining the blockchain improves the efficiency of information transmission.A comprehensive comparison of the experimental results,based on ensuring fairness,the Gated service system is more stable than the other two service strategies in accelerating information processing speed and improving system performance.