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Internet protocol (IP) is emerging as a ubiquitous protocol for communications and applications. IP-based services aims to provide consumers anytime-anywhere access to content over range of electronic devices and to integrate services & content, to tie them together. This paper presents an overview of various network architectures and their evolution to include an all IP based infrastructure fuelled...
Cellular backhaul networks carry user's traffic within encrypted tunnels. With tunneled traffic, the application classifier cannot identify the underline TCP/UDP connections and cannot use any IP packet header information. Yet, some statistical properties can be considered in this case too, such as: volume per tunnel, tunnel durations, inter-packets delays (however, sequential packets might belong...
Universal Mobile Telecommunications System (UMTS), as a core network can support both circuit-switch as well as packet-switch networks. UMTS supports IP Multimedia services by including the IP Multimedia Subsystem (IMS) as part of its core network. IMS services are used by authenticating user equipment with the UMTS using UMTS AKA and then with the IMS using IMS AKA. This paper concentrates on the...
Targeting the distribution of accurate frequency and time references across Packet Switched Networks (PSNs), the IEEE Std 1588™-2008 (a.k.a. 1588V2 or PTPV2) standard specifies network infrastructure components intended to reduce the impact of network elements located between the Grandmaster clock and Slave clocks. Also referred to as On-Path Supports (OPS), these PTPV2 build-in network components...
The packer switching service of the third-generation mobile communication network (3G) has provide a broader range of services, while wireless local area network (WLAN) has a faster speed in information transmission, thus making these two complementary functionally. However, with the improvement of technology and increasing of mobile users, it has a significant impact on network communication when...
Ensuring a seamless connection when users are moving across radio cells is essential to guarantee a high communication quality. In this paper, performance of TCP during the handover in a Long Term Evolution (LTE) network is investigated. Specifically, mobile users with high bit rates TCP services are considered, and the impacts of the intra LTE handover over their perceived throughput are studied...
This paper provides a technological overview of the system architecture evolution (SAE) of LTE networks. The target of this overview is to provide a basic knowledge on 4G cellular network structure, entities responsibilities and protocol-stack. The overview is mainly based on the relevant 3GPP standards and on Chapter 3 of the book "LTE for UMTS: OFDMA and SC-FDMA based radio access" edited...
Next generation networks will result from the convergence of the different existing technologies, taking benefit from their complementary properties . In this context, recent research has addressed digital video broadcast (DVB) networks, which benefit of very high broadcast capacities, and has tried to couple them with complementary networks. In our work, we focus on DVB-SH, satellite services for...
In universal mobile telecommunications system (UMTS), the core network consists of two service domains: the circuit-switched (CS) and the packet-switched (PS) domains. A call can be set up in either the CS or the PS domain. This call may be switched (transferred) between the CS and the PS domains. A major concern of domain transfer is the switching overhead. In this paper, we propose the Bearer Reservation...
Video-streaming can now be offered on third-generation (3G) mobile networks. Most research efforts have focused on video download. This paper presents a detailed study of challenges faced for successfully deploying applications requiring life video upload. Both subjective and objective qualities as well as the effects of mobility are analyzed on real 3G networks. Consequently, video profiles are identified...
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