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Recently, the demanding requirements and use for wireless communication are increased and continue to grow. WiBro is trying to compete with Wi-Fi in coverage and data rate, while the inexpensive Wi-Fi still very popular in both personal and business use. This paper designs and implements Fixed Mobile Convergence (FMC) terminal system supported IEEE802.11 b/g/n Wi-Fi and WiBro. Terminal system of this...
Defined by the 3GPP, the IP multimedia subsystem (IMS) is an architectural framework that enables the delivery of multimedia services in mobile networks. Based on the session initiation protocol, the IMS offers unified billing, QoS negotiation mechanisms, and the possibility of combining services deployed in different environments like CAMEL and Parlay OSA. With the aim of determining the real limitations...
Service creation by composing existing services and/or network resources is considered by Telecom and Internet industries as the trend for service provisioning in next generation networks. Related research work is being carried out for years, and various service composition approaches have been proposed by different standardization organizations and companies catering to different network requirements...
In this paper, we present the design and the implementation of a test-bed for the Policy and Charging Control (PCC) system proposed in 3GPP TS23.203. Specifically, we use an IP multimedia call service example to demonstrate how to implement an advanced mobile service with policy and charging control in our test-bed. We show that the PCC system can handle the application-level session information and...
Long Term Evolution (LTE) has being standardized by the 3rd generation partnership project (3GPP) as the evolution of WCDMA. Different from the conventional mobile communication technologies that deliver voice traffic through circuit switched networks, in LTE, all kinds of traffic are transferred through packet switched networks based on Internet Protocol (IP). In order to provide Quality of Service...
Quality of Service impairments in wireless and wired access networks for IP-based next generation networks (NGNs) differ fundamentally from the ones which we typically encounter in core networks. Examples include but are not limited to high delay, low bandwidth, and high jitter. Even though most NGN architectures claim to be access-agnostic, applications deployed on NGNs have requirements which may...
In this paper, we highlight different architectures and techniques for transport of user traffic in the IP-based UMTS terrestrial radio access network (UTRAN) taking into account the real-time nature of the transport therein. Indeed, the UTRAN imposes severe delay bounds on the transport of both real-time and non real-time traffic. In this context, we provide an overview of different QoS-capable transport...
Accurate measurement and modeling of IP networks is essential for network design, planning, and management. Efforts are being made to detect the state of the network from end-to-end measurements using different techniques and paradigms. In this paper we present a novel concept to use in the modeling of real network scenarios under measurement and analysis. We called this new concept service condition...
In this paper the versatility of IP-based IMT network platform "IP-IMT-NP" for mobile-IPv6-MPLS networks is being discussed. Experimental systems using IP2 (IP2) mobility management was designed and implemented to offer more efficient protocol handshake and addressing bottlenecks. We believe that IP-based IMT Network platform is capable of reducing overhead, limit unnecessary signalling...
IP-based radio access networks (RAN) are expected to be the next generation access networks in UMTS and CDMA networks. There are several benefits of IP-based RAN including lower costs, flexibility of merging wired and wireless networks, and network scalability and reliability. While quality of service issues in IP-based RAN have been addressed by a number of researchers, the question of connectivity,...
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