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Analytical Modeling of Heterogeneous Cellular Networks by Sayandev Mukherjee

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7  Spectral and energy efficiency analysis

7.1  Introduction

We have so far studied only the distribution of the SINR at an arbitrarily located user in a single-tier cellular network or a multi-tier HCN. The CCDF of the SINR directly yields a measure of system performance called coverage, as discussed in Section 5.2.4. However, of equal and possibly greater interest to the network designer is another metric variously called throughput, spectral efficiency, and capacity. We favor the use of the term spectral efficiency.

The spectral efficiency can be calculated for each tier, and is defined as the total number of bits of information that an arbitrary BS in that tier can transfer to the set of its served users per use of the wireless “channel” ...

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