Research Article
A Multidepth Load-Balance Scheme for Clusters of Congested Cells in Ultradense Cellular Networks
| Symbol | Description |
| | The set of small cells | | The set of users | | The set of users that can be served by small cell | | The set of adjacent small cells of small cell | | The set of small cells covers user | | The number of resource blocks of small cell | | The indicator function, which is 1 if small cell serves user , and 0 otherwise | | The data rate of a resource block allocated by small cell to user | | The total data rate provided by small cell to user | | The data rate requirement of user | | The number of consumed resource blocks of small cell for satisfying the data rate requirement of user | | The set of overloading small cells | | The loading threshold of being an overloaded cell |
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