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CURATOR
A pinboard by
Haruna Abdu

Assistant Lecturer, Federal University Lokoja, Kogi State Nigeria

PINBOARD SUMMARY

To reduces the latency and packet lost as a result of change in point of attachments

My area of research is in distributed systems with specifications on fog computing and IoT (Internet of Things) resource management. Fog computing is a distributed computing infrastructure that aimed towards providing supports for IoT devices and analytics. With the rapid increase in number of ubiquitous network devices often referred to as IoT devices, new form of mobility, resources allocation and management is imminent in fog infrastructure since different applications have different requirements especially in terms of response time. Moreover, for some IoT devices application execution requests are forwarded to cloud data centres that are geographically distributed, through the fog layer that leads to the increase in response time. On the other hand, data generation, processing and distribution can be handled at the network edges by fog layer which reduces the network traffic that leads to low delay and less battery consumption. However, fog computing is not a substitute of cloud computing, rather these two technologies complement one another. The complementary functions of cloud and fog enable the users to experience a new breed of computing technology that serves the requirements of the real time, low latency IoT applications running at the network edges, and also support complex analysis and long term storage of data at the core of the network. The optimisation of computing resources utilisation depends on the kind of application requirement and the nature of the terminal nodes in conjunction with the type of Scheduling policies adopted or used. Resources allocation in fog computing depends on the kind of application service request, that could either be delay tolerant or latency sensitive.

11 ITEMS PINNED

A Robust Seamless Handover Scheme for the Support of Multimedia Services in Heterogeneous Emerging Wireless Networks

Abstract: With the rapid development of wireless technologies and numerous types of mobile devices, the need to support seamless multimedia services in Mobile and Ubiquitous Computing (MUC) is growing. To support the seamless handover, several mobility protocols such as Mobile IPv6 (MIPv6) (Johnson et al., Mobility Support in IPv6, IETF, RFC 3775, 2004) and fast handover for the MIPv6 (FMIPv6) (Koodli et al. Past handovers for mobile IPv6 (FMIPv6), IETF, RFC 4068, 2005) were developed. However, MIPv6 depreciates the Quality-of-Service (QoS) especially in multimedia service applications because of the long handover latency and packet loss problem. To solve these problems in the MIPv6, FMIPv6 is proposed in the Internet Engineering Task Force (IETF). However, FMIPv6 is not robust for the multimedia services in heterogeneous emerging wireless networks when the MN may move to another visited network in contrast with its anticipation. In MUC, the possibility of service failure is more increased because mobile users can frequently change the access networks according to their mobility in heterogeneous wireless access networks such as 3Generation (3G), Wireless Fidelity (Wi-Fi), Worldwide Interoperability for Microwave Access (WiMax) and Bluetooth co-existed. In this paper, we propose a robust seamless handover scheme for the multimedia services in heterogeneous emerging wireless networks. The proposed scheme reduces the handover latency and handover initiation time when handover may fail through the management of tentative Care-of Addresses (CoAs) that does not require Duplicate Address Detection (DAD). Through performance evaluation, we show that our scheme provides more robust handover mechanism than other scheme such as FMIPv6 for the multimedia services in heterogeneous emerging wireless networks.

Pub.: 30 Dec '08, Pinned: 10 Oct '17

A forward fast media independent handover control scheme for Proxy Mobile IPv6 (FFMIH-PMIPv6) over heterogeneous wireless mobile network

Abstract: Proxy Mobile IPv6 (PMIPv6) is a networked-based handover protocol for the IP layer, i.e., the layer 3 mobility management protocol. In this work, we integrate fast handover and IEEE 802.21 Media Independent Handover (MIH) Services with PMIPv6 to improve the handover performance over the heterogeneous wireless network environment. Since it may have multiple candidate destination networks to which a Mobile Node can select for handover, it needs to consider not only the signal strength but also the corresponding networking situation for the proper selection of the next network. To reduce the packet loss situation, the multicast mechanism is adopted to forward packets to these candidate destination networks during the handover processing period. In this work, a Forward Fast Media Independent Handover Control Scheme for Proxy Mobile IPv6 (FFMIH-PMIPv6) is proposed based on the aforementioned concerns. Through the simulations for performance analysis, it shows that the proposed FFMIH-PMIPv6 can have better handover performance in terms of handover latency, packet loss rate and throughput. Proxy Mobile IPv6 (PMIPv6) is a networked-based handover protocol for the IP layer, i.e., the layer 3 mobility management protocol. In this work, we integrate fast handover and IEEE 802.21 Media Independent Handover (MIH) Services with PMIPv6 to improve the handover performance over the heterogeneous wireless network environment. Since it may have multiple candidate destination networks to which a Mobile Node can select for handover, it needs to consider not only the signal strength but also the corresponding networking situation for the proper selection of the next network. To reduce the packet loss situation, the multicast mechanism is adopted to forward packets to these candidate destination networks during the handover processing period. In this work, a Forward Fast Media Independent Handover Control Scheme for Proxy Mobile IPv6 (FFMIH-PMIPv6) is proposed based on the aforementioned concerns. Through the simulations for performance analysis, it shows that the proposed FFMIH-PMIPv6 can have better handover performance in terms of handover latency, packet loss rate and throughput.

Pub.: 27 Dec '16, Pinned: 10 Oct '17