Gupta's wireless interference model method was popular in Ad hoc networks' capacity analysis. It drew out an asymptotic capacity when amount of nodes went to extreme large. In practice, that method is somewhat coarse. In order to overcome the shortcoming of that method, a new type of analysis method through statistical analyzing is put forward. A node service model based on MMPP is introduced. Parameters of the model are deduced from the data drawn from a test network and corresponding algorithm. A M/MMPP/1 node queuing model was set up. Meanwhile, QBD processes are applied into Ad hoc networks' performance analysis. Further-more, A matrix-geometric solution algorithm is used to get the numerical result. The above process constitutes an integrated statistical processes analysis method about capacity analysis of Ad hoc networks. The results of simulation show that this model is more practical, universal and flexible compared with wireless interference model.%无线Ad hoc网络容量分析目前主要基于Gupta等人的无线干扰模型的方法,该方法得出的是一种节点数趋于无穷大时的渐近网络容量,在实际较小或中等规模网络时,偏差较大.为了克服该方法网络容量分析中的某些不足,提出了一种新的随机分析方法.针对提出的基于MMPP的节点收/发服务模型,根据实测数据及相应算法确定了模型参数；建立节点M/MMPP/1排队模型并将QBD(Quasi-Birth-and-Death)过程应用于Ad hoc网络性能分析；进一步运用矩阵几何法进行计算,形成了对Ad hoc网络容量完整的随机理论分析和计算.与Gupta的理论结果[1]比较表明:该模型在实际工程中更具有实用性、通用性和适应性.
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