port Network Performance 6.4.1 System Models for the lub Interface 6.4.1.1 Delay Analysis on the lub 6.4.1.2 System Models 6.4.2 UMTS lub Traffic Characteristics 6.4.2.1 Squared Coefficient of Variation 6.4.2.2 Self-Similarity of Elastic IP Traffic 6.4.3 Analytical Dimensioning Models with MMPP 6.4.3.1 Markov Modulated Poisson Process (MMPP) 6.4.3.2 MMPP(2)/D/1 6.4.3.3 MMPP(2)/D/1 - Non-Preemptive Priority 6.4.3.4 lub Dimensioning with MMPP 6.4.3.5 Validations 6.4.4 Analytical Dimensioning Models with BMAP 6.4.4.1 Batch Markovian Arrival Process (BMAP) 6.4.4.2 BMAP/D/1 Dimensioning for HSPA Dimensioning for Single IP-Based lub Overview and Objectives Dimensioning for Circuit-Switched Traffic Contents Dimensioning for Elastic Traffic 7.3.1 Analytical Models for the IP-Based lub Dimensioning 7.3.2 Validation of Analytical Dimensioning Models 7.3.3 Dimensioning Procedure 7.3.4 Dimensioning Results Comparing the ATM and IP-Based lub Summary Dimensioning for Multi-lub RAN Scenario Overview and Objectives 8.1.1 Dimensioning of Individual Links 8.1.2 Overbooking of the lub Backbone Link Dimensioning for Circuit-Switched Traffic 8.2.1 Network Dimensioning Approach 8.2.2 Applicability of the Dimensioning Approaches 8.2.3 Summary Dimensioning for Elastic Traffic in ATM-Based UTRAN 8.3.1 Estimation of End-to-End Application Performance 8.3.2 Dimensioning Approaches 8.3.3 Dimensioning Results 8.3.4 Summary Dimensioning for Elastic Traffic in IP-Based UTRAN 8.4.1 Dimensioning Approaches 8.4.2 Dimensioning Results 8.4.3 Summary Overbooking of the lub Backbone Link 8.5.1 Overbooking of ATM-Based lub Backbone Link 8.5.2 Overbooking of IP-Based lub Backbone Link 8.5.3 Comparing ATM and IP-Based Multi-lub RAN 8.5.4 Summary Conclusion and Outlook Appendix ATM Cell Format AAL2 Packet Formats ATM Service Categories and QoS Parameters Ethernet Random Early Detection and Weighted RED Self-Similarity ATM Workstation and Server Introduction for HSPA (HSUPA/HSDPA) Simulation Model of HSPA Multiplexing Schemes for the IP-Based UTRAN Exact 