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Gestione dell'handover verticale in Reti Mobili di ultima ... - InfoCom

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In<strong>di</strong>ce<br />

3.3 Algoritmi <strong>di</strong> Vertical Handover.................................................. 70<br />

Adaptive Schema..................................................................................70<br />

Optimization Schema ...........................................................................71<br />

Optimization for VH Decision Algorithms ..........................................71<br />

End-to-End Approach...........................................................................72<br />

3.3.1 P<strong>in</strong>g-Pong Avoidance Algorithm for Vertical Handover <strong>in</strong><br />

Wireless Overlay Network....................................................................72<br />

3.3.2 A New Approach of UMTS-WLAN Load Balanc<strong>in</strong>g: Algorithm<br />

and its Dynamic Optimization .............................................................76<br />

3.3.3 MMUSE ........................................................................................80<br />

CAPITOLO IV ..............................................................................82<br />

Progetto del simulatore del vertical handover ...................................82<br />

Introduzione ....................................................................................... 82<br />

4.1 Considerazioni tecniche.............................................................. 83<br />

4.1.1 Channel overview ......................................................................83<br />

4.1.2 Capacity overview .....................................................................86<br />

4.1.3 QoS overview .............................................................................89<br />

4.2 Architettura del simulatore ......................................................... 91<br />

CAPITOLO V................................................................................99<br />

Validazione del vertical handover....................................................99<br />

Introduzione ....................................................................................... 99<br />

5.1 Dettagli tecnici degli scenari <strong>di</strong> riferimento............................. 100<br />

5.1.1 Scenario WiFi .............................................................................101<br />

5.1.1 Scenario UMTS ..........................................................................104<br />

5.2 Simulazioni effettuate.............................................................. 106<br />

5.2.1 Simulazione n.1..........................................................................108<br />

5.2.2 Simulazione n.2 Confronto algoritmo MMUSE e algoritmo<br />

proposto ..............................................................................................118<br />

5.3 Risultati ottenuti dalle simulazioni ......................................... 121<br />

5.3.1 Simulazione n.1..........................................................................121<br />

5.3.2 Simulazione n.2..........................................................................122<br />

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