1. Design and Analysis of Optimal Multi-Level Hierarchical Mobile IPv6 Networks

   • Sangheon Pack
   • Yanghee Choi
   • Minji Nam

   OriginalPaper Pages: 95 - 112

2. Performance of Multilayered Video Encoding and Delivery over Lossy Channels Using a Joint Source-Channel Coding Approach

   • Yong Pei
   • James W. Modestino

   OriginalPaper Pages: 113 - 128

3. On the Economics of 3G Mobile Virtual Network Operators (MVNOs)

   • D. Varoutas
   • D. Katsianis
   • I. Welling

   OriginalPaper Pages: 129 - 142

4. Intelligent MBWIMA/UMTS Protocol Using SDMA Scheduling in UTRA TDD Mode

   • Jeich Mar
   • Chih-Yang Kao

   OriginalPaper Pages: 143 - 162

5. Alternative Schemes for Dynamic Secure VPN Deployment in UMTS

   • Christos Xenakis
   • Lazaros Merakos

   OriginalPaper Pages: 163 - 194