Active Hierarchical Label Switching Router (AHLSR) architecture for MPEG-4-based mobile multimedia IP-networks

摘要

In this paper, a new Active Hierarchical Label Switching Router (AHLSR) architecture of MPLS is proposed for MPEG-4-based mobile multimedia IP-networks. The proposed architecture has two important modules, AHLSR Controller (AHLSRC) and AHLSR Protocol (AHLSRP). AHLSR conducts layer 2 switching and layer 3 routing independently; it supports multi-resolution functionality. Each VOL flow entering AHLSR is segmented into several VOL sub-flows according to resolutions. And, AHLSRC manages both dedicated and unused channels. The AHLSR can achieve better performance without wasting communications bandwidth in MPEG-4-based mobile multimedia communications.