An End-to-End QoS Guarantee Scheme in Heterogeneous Networks

Nowadays, as the various applications emerge, to address the problem of the end-to-end QoS guarantee in the heterogeneous networks is becoming more and more important. Considering the communication between two nodes within a domain or cross-domain in the heterogeneous networks, we design the scheme of Signaling of Cross-domain QoS Cooperation in heterogeneous networks (SCQC). In SCQC, the SSE nodes can quickly establish the QoS path. To provide the end-to-end communication cross domain, a QoS parameter mapping rule in heterogeneous is designed. Then, we proposed the End-to-end SLA Negotiation algorithm based on the state of the Data Stream (ESNDS), which can effectively guarantee service end-to-end QoS by dynamically adjusting the level of service in different domains according to the current state of the data stream. Through the performance analysis and simulations, we evaluate the time to establish QoS path and end-to-end latency of service with our algorithm. The results prove the effectiveness and feasibility of the ESNDS in guaranteeing the end-to-end QoS in heterogeneous networks.