QoS-guaranteed realtime multimedia service provisioning on broadband convergence network (BcN) with IEEE 802.11e wireless LAN and fast/gigabit Ethernet
In broadband convergence network (BcN), heterogeneous broadband wired & wireless subnetworks and various terminal equipments will be interconnected. In order to provide end-to-end realtime multimedia services on such heterogeneous networking environment, as a result, two major problems should be resolved: i) Multimedia session establishment & negotiation that adjusts the differences in the capability of multimedia data processing at the end terminal nodes, ii) quality of service (QoS)-guaranteed connection establishment or resource reservation with connection admission control (CAC) in each heterogeneous subnetworks along the path. The session layer signaling (e.g., SIP/SDP) should be extended for QoS negotiation, and must be tightly cooperating with network layer signaling or resource reservation with CAC function. In this paper we propose a session and connection management architecture for the QoS-guaranteed realtime multimedia service provisioning on BcN, with Q-SIP/SDP, resource reservation protocol with traffic engineering extension, and CAC functions. The detailed interaction scenario and related algorithms for QoS-guaranteed realtime multimedia session, resource reservation and connection establishment are explained and analyzed. From the experimental implementation of the proposed scheme on a small scale BcN testbed, we verified that the proposed architecture is applicable for the realtime multimedia service provisioning. We analyze the ntetwork performance and QoS parameters in detail.
broadband convergence network (bcn) ieee802.11e multi-protocol label switching (mpls) quality of service (qos) session initiation protocol (sip)/session description protocol (sdp)