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The Internet of Things (IoT) is the next generation technology which is expected to bring a major revolution in the art of creating smarter environments. In order to uniquely identify each device in smart environment, a new protocol using IPv6 over Low-power Wireless Personal Area Network (6LoWPAN) has been developed which supports management of sleep cycles of device for power management. However...
This paper discusses the design challenges associated with supporting advanced mobility services in the future Internet. The recent transition of the Internet from the fixed host-server model to one in which mobile platforms are the norm motivates a next-generation protocol architecture which provides integrated and efficient support for advanced mobility services. Key wireless access and mobility...
Even though Evolved Packet System (EPS) features flat-IP architecture, it is essentially a connection oriented system and establishes logical bearers between the User Equipment (UE) and the core network entities for any user data transmission. EPS was designed assuming high speed real-time bulk multimedia data transfer; so initial cost of bearer setup signaling for user plane data is justified. However,...
The IP Multimedia Subsystem (IMS) has been selected as a telecommunication industrial standard for the signal processing among heterogeneous access networks, and it is also responsible for mobility management. However, the mobility of the user equipment (UE) may disrupt or even intermittently disconnect an ongoing session, which heavily affects the satisfaction of the users. Therefore, how to reduce...
Typical sensor networks are formed by low-end, battery operated devices, which rely on low-energy communication technologies, such as Bluetooth, Zigbee and ANT+, due to their energy efficiency. On the other hand, sensor networks increasingly need to be connected to the Internet, which implies adaptations of the TCP/IP stack to fit such wireless technologies. These adaptations bring additional complexity...
Mobile and wireless communication has been evolved from the basic model for providing point-to-point (PtP) voice centric services into more complicated service provision technologies with point-to- multipoint (PtM) transmission mode, such as MBMS in 3GPP and BCMCS in 3GPP2. On the other hand, the evolution of mobile and wireless communication has also resulted in a large number of wireless technologies...
As fixed and wireless access networks converge towards Internet Protocol based transport in next generation networks, the requirement for effective and scalable control and management solutions to address the complexity introduced by their heterogeneity becomes ever more critical. Over the years, policy-based management has emerged as a viable tool to address this challenge. Within the IU-ATC project,...
The wireless/mobile world will going into 4G era which means faster of uploading and downloading speed, wider of bandwidth and easier using of mobile device. Mobile learning is more and more populate in the world which can learn any place, any time and any person. There are still some challenges which are shown in current practice of mobile learning. In this paper, these challenges will be discussed...
This paper addresses the multicast handover in the wireless networks based on the Proxy Mobile IPv6 (PMIP). The existing PMIP-based multicast schemes tend to induce severe packet losses, large handover delays and unnecessary data transmissions during handover. To overcome these problems, we propose the use of Multicast Handover Agent (MHA) for fast handover. In the proposed scheme, called PMIP-MHA,...
In this paper, we propose a communication stack for powerline communication (PLC) based on open standards. Our aim is to provide interoperability features regarding others mediums with a robust and reliable communication stack for smart metering, home control or home area networks applications. Our work is based on the adaptation of the IEEE 802.15.4 standard protocol. It is constrained by the low-power,...
As the Internet continues to shape and reshape our lives, there is a parallel phenomenon taking place in wireless communication which is equally influential. Mobile communication has proved to be a major paradigm in the history of human communication. As both the Internet and mobile telephony continue their dramatic advances, there is a lot of requirement that should be available such as valid IP...
A wireless connectivity island is a geographic area covered by a particular wireless ISP. Nowadays, mobile users possessing multi-homing mobile devices can have IP-connectivity almost everywhere, while being on the move. In terms of vertical handover, these users jump from a connectivity island to another that could differ by communication technology, access provider, QoS conditions and price. The...
In both IP based mobility schemes and cellular networks, mobility support relies on centralized approaches forwarding traffic towards and from mobile nodes location. In order to overcome the inherent limitations of those mobility approaches such as flexibility concerns and scalability issues caused by centralized functions, we proposed in a new distributed and dynamic approach for managing mobility...
Multihoming protocols, such as SCTP, HIP or SHIM6 provide a framework for multiple addresses management.In wireless environments, the set of the available address of multihomed nodes frequently changes due to handovers. Asa consequence, multihoming protocols are supposed to detect such changes and if necessary rehome their ongoing sessions.Nonetheless, current multihoming protocols do not provide...
Header compression is the process of reducing protocol header overhead in order to improve link efficiency while maintaining the end-to-end transparency. Robust header compression (ROHC) is a scheme for IMS (IP multimedia subsystem) and MBMS (multimedia broadcast multicast service). ROHC is defined for 2.5 Gm (GPRS) and according to 3Gpp2 next generation network, in CDMA2000 1x EV-DO and 1x EV-DV...
Header compression techniques such as robust header compression can be used to reduce the overhead of IP-based traffic. Voice over IP may replace voice circuits in the next generations of wireless networks, and it is the type of traffic that benefits most from header compression because its packets have small payloads. IEEE 802.11 is a technology that will play an important role in the next generations...
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