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Video is expected to be the dominant application by traffic volume over mobile networks in the near future. Mobile network operators are deploying video optimization techniques to enhance the user experience and network utilization for video delivery. Video optimization is typically “out-of-network” and includes techniques such as transcoding, transrating, time shifting and pacing that are implemented...
High altitude platform stations (HAPs) are widely identified as a potential infrastructure that is able to deliver the third generation (3G) and beyond 3G mobile communications services in a spectral efficient and cost effective way. The paper starts from previous studies regarding call admission and power control schemes on UMTS-HAPs forward link pointing out few issues and limitations; then three...
Mobile WiMAX aims to provide multimedia multicast/broadcast service (MBS) as well as elastic data service. However, supporting delay sensitive applications like video/audio streaming is still challenging, which requires both efficient handling of link bandwidth and reducing handover delays. To reduce the handover delay in MBS, the IEEE 802.16e standard defines an MBS zone, which is a group of base...
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