Ad-hoc MPLS protocol system and its performance analysis Based on the wireless MPLS protocol system and the characteristics of wireless mobile Ad-hoc networks, an Ad-hoc network QoS routing protocol, AMPLS, which uses extended CR-LDP signaling to establish label switching paths, is proposed. By building an Ad-hoc network simulation model, the performance of the AMPLS routing protocol is simulated and analyzed, and the network characteristics of the protocol, such as differentiated services and traffic engineering, are verified, providing a method for implementing Ad-hoc networking with a certain degree of QoS services. Keywords Ad-hoc network; Quality of service; Wireless multi-protocol label switching; Differentiated services; Constrained routing Mobile Ad-hoc networks are a type of wireless networks with mobile, multi-hop, self-generated, and self-organizing characteristics [1]. Its networking technology is an extremely active research field. Although many Ad-hoc network routing protocols have been proposed (such as AODV, DSR, OLSR, TBRPF, etc.), they only provide \"best effort\" services without guaranteeing service quality, and cannot be effectively compatible with the wired network MPLS technology with application prospects. The research on extending MPLS into WMPLS (Wireless Multi-Protocol Label Switching) has just started internationally. Jong-Moon Chung first established the WMPLS protocol system [2], proposed the strategy of extending MPLS into WMPLS, and elaborated the basic idea of implementing WMPLS in mobile communication networks and ad hoc networks. 1 QoS Issues and Implementation Models QoS refers to the ability of the network to provide resource guarantees and service differentiation. Its goal is to provide reliable end-to-end service quality assurance for various services, that is, a series of service requirements that the network needs to meet when sending a data stream [3]. The main QoS performance parameters are: throughput, delay, delay jitter, packet loss rate and service reliability. The integrated service model (InterServ) and the differentiated service model (Diffserv) are two basic resource allocation structures that support network QoS mechanisms. The integrated service model achieves absolute service quality assurance and can support dynamic changes in network status, but it has disadvantages such as poor scalability and complex signaling implementation. In order to overcome the shortcomings of the comprehensive service model, IETF proposed a simpler and more scalable differentiated service model. The differentiated service system can guarantee the corresponding service quality parameters such as delay, transmission rate, jitter, etc. FQMM, SWAN, INSIGNIA and other QoS models have also been proposed for Ad-hoc networks [4~6]. Considering the complexity and maturity of the model, this paper adopts the differentiated service model as the Ad-hoc network QoS model.
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