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# Table 1 Parameter for evaluation

From: Proposal and evaluation of SDN‐based mobile packet core networks

Parameter | Description | Value |
---|---|---|

P
_{initial}
| Probablity that a UE initiates an attachment procedure | 0.2 |

P | Probablity that a session is generated by UE | 0.5 |

λ
_{
k
}
| Average arrival rate of session type‐k | 0.4 |

\(\frac {1} {\mu _{k}}\) | Averate duration of session type‐k | 0.05 |

\({P_{i}} = \frac {1} {1 + \frac {\lambda _{k}}{\mu _{k}}}\) | Probability that a UE is in Idle state | |

1−P
_{
i
}
| Probability that a UE is in Connected state | |

S |
Area of a considered region (k
m
^{2})
| 500 |

Nue | Total number of UEs | |

\(\rho = \frac {\text {Nue}}{S}\) |
UE density (UEs/ k
m
^{2})
| |

C | Total number of eNBs in a considered region | 500 |

R
_{
p
}
| Average number of paging transmission per page | 1.1 |

V | Velocity of UE | |

γ
| Overlapping factor | 1.2 |

\(r = \gamma \sqrt {\frac {S}{C\pi }}\) | Radius of a cell | |

L=2π
r
| Perimeter length of a cell (km) | |

\(R = \frac {\rho LV} {pi}\) | Crossing rate out of a cell (UEs/hour) | |

C
_{TAU}
| Tracking area size | |

P
_{
r
}
| GW relocation probability |