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This paper proposes a new protocol to integrate the Mobile IP and MPLS protocols called B-MPLS. The proposed protocol is based on L2 information and a simple buffer technique. Performance analysis of proposed protocol is simulated by the Network Simulator (NS2). The primarily results show that the proposed mechanism grants seamless handover. The packet lost rate is much lower than that of mobile MPLS...
In wireless heterogeneous environment, the integration of wireless access network will be accomplished by seamless handover which contains many challenges i.e. service mobility, vertical handover, common authentication, unified accounting/billing, security mechanisms, QoS and service provisioning, etc. Toward this direction, our research aims to provide a complete integration of heterogeneous network...
High quality and sustained multi media experience is expected to be a major feature of the Future Mobile Internet (FMI). Currently deployed novel mobile network technologies such as LTE (Long Term Evolution) make use of the Internet and its best-effort TCP/IP protocol stack to enable applications. The orientation towards TCP/IP is logical due to the success of the Internet. However, TCP/IP still provides...
The following topics are dealt with: tree-building algorithms; HCM decision tree; grid authorization system; grid scheduling system; evolutionary algorithm; data allocation problem; read-one-write-all monitoring synchronization transaction system; large block FEC; RED queue; TFRC congestion control; TCP; mobile ad hoc networks; vehicular ad hoc networks; wireless sensor networks; failure route protocol;...
Mobile radio networks of the IMT-Advanced systems family promise ubiquitous broadband access and high area coverage, with rates of several 100 MBit/s. They claim to guarantee QoS support in terms of low delay and guaranteed throughput. However, with the availability of flat rate plans and bandwidth-hungry applications of future mobile devices the systems are facing a hard challenge in satisfying all...
This Supporting Quality of service (QoS) in the Internet is considered as one of the main challenges that recently got the attention of many researchers. QoS is the ability of a network element (e.g. an application, a host or a router) to provide some level of assurance for consistent network data delivery. Mobile IPv6 protocol enables a mobile node to communicate with other nodes after changing its...
This paper investigates the bandwidth efficiency of packet based mobile backhaul in case of low rate, delay sensitive voice service. Evolved HSPA is a fully packet based mobile technology where the voice service is VoIP based. VoIP sources generate small packets periodically. The overhead on these packets is significant; it even exceeds the useful payload, causing efficiency problems on the mobile...
The objective of this paper is to provide a specialised online charging model in order to make use of Service Level Agreement (SLA) characteristics in a mobile telecommunication environment. The proposed model is based on the service enablers concepts in mobile internet environment (related to OMA and 3GPP standards), and termed as SLA-OC model. The Service Level Agreement (SLA) characteristics comprise...
Next generation mobile networks are expected to provide seamless personal mobile communication and quality of service (QoS). Fair, class based service and Lossless handoff are the key issues for providing the QoS. This paper proposes a scheduling mechanism for providing QoS in mobile networks, which exploit IP as a transport technology for transferring data between base stations of Broadband Wireless...
The success of emerging Broadband Wireless Access Systems (BWAs) depend on their ability to utilize the network resources in an efficient way. It's a complex task due to heterogeneous service nature and diverse Quality of Service (QoS) requirements of different applications that these systems support. Packet scheduling is one of the key components to provide QoS that plays a vital role in BWAs. This...
IPTV is defined as multimedia services, such as TV, video, audio, text, graphics, and data, delivered over IP-based networks managed to support quality of service (QoS), quality of experience (QoE), security, interactivity, and reliability. Those services are now expanded to mobile and wireless networks. This paper illustrates what technical challenges to be considered for IPTV seamless service in...
The promise of digital inclusion may be deterred by different sorts of discrimination brought about by next-generation network operators. As the growth of fixed and mobile networks relies on private investment and sufficient regulatory and economic incentives, competition in different telecommunications markets will increasingly depend on providers' ability to differentiate their product and discriminate...
Multimedia applications invariably require guaranteed Quality of Service (QoS) and resource reservation. These requirements have raised numerous challenging technical issues for routing in MANETS. We have proposed a hybrid Differentiated Services Architecture (HDSA) to provide QoS provisioning in dynamic topology based MANET. Our proposed HDSA introduces routing metrics such as available bandwidth...
While the form in which quality of services are proportioned to the set networks has been studied for quite some time, the problem of proportioning QoS to mobile networks presents a challenge that is now starting to be considered. The supply and up keep of QoS in the mobile environment presents some specific problems such as roaming, handoff, change of IP address. A support system is necessary for...
Traditional approaches for testing MANET protocols and applications prior to field experimentation often involve simulation tools or small-sized physical testbeds. However, simulation tools typically do not run in real-time and rely on simplified models rather than a real system, while physical testbeds are prohibitively expensive to build and operate. A more practical method is to use emulation tools...
Since the future wireless communication environments will contain various wireless access technologies, the provision of seamless mobility to vehicle across these heterogeneous networks is needed. In this paper, we propose an application-driven vertical handoff scheme which includes PMIPv6 handoff process by using IEEE 802.21 media independent handoff (MIH) services to provide seamless connectivity...
As advanced integrated network architecture, ldquocognitive radio technologies,rdquo which aim to improve the spectrum efficiency, have been studied. In the cognitive radio networks, each node recognizes radio conditions, and according to them, optimizes their wireless communication routes with the integration of the heterogeneous wireless systems not only by switching over them but also aggregating...
This paper surveys the issues in implementing a wired backhaul optical network that supports mobility of broadband wireless access network users. In particular, the focus is on the functionalities and the performance in terms of delay, throughput, and reliability that the backhaul network must guarantee.
Currently, the vertical handover between different technologies presents a real challenge to overcome; the service interruptions during handover pose a real problem to users. In this paper we focus on this problem, and we propose the MSCTP protocol characterized by its multi-homing technique, as vertical handover mechanism between the IEEE 802.16e and the IEEE 802.11e networks, in order to reduce...
Recently, all-IP wireless systems have been standardized under the IP multimedia subsystem (IMS) framework to support next generation value added mobile services. In all-IP networks, multiple base stations connect to IMS policy servers through IP-based access gateways. As users move from one access gateway area into another, the corresponding access gateways initiate signaling flows for QoS authorization...
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