We study formulating the ubiquitous cloud (UC) model proposed by Murakami at KDDI [4]. Based on the analysis for Ad Hoc wireless network by Gupta and Kumar [3], we rearrange their setting to an appropriate one for the UC, and then give an evaluation of network capacity called transport capacity. The evaluation takes the form similar to [3], when transmission bit rates are equal in each layer.
Also, as a model of the node part in the network, we propose applying a birth-death process in M/M/1 queue, in order to describe the connection and disconnection of the nodes to the network.