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Scalability, Density, and Decision Making in Cognitive Wireless Networks by Preston Marshall

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9   Network scaling

9.1 Approach to network scaling analysis

This is the first of two chapters that address the effect of an increased number of nodes on the information delivery capacity of a network. In these two chapters, we consider two mechanisms by which the membership of the network is increased. In this analysis (Figure 9.1), we consider expansion of membership, with the assumption that this increase creates no additional physical-layer interaction or contention for resources. As an example, this “pure case” could represent networks with switched Ethernet and adequate inter-switch bandwidth. The sole effect of membership change is on the upper layers (network and above). In Chapter 10, we consider the effect on physical-layer operation ...

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