Distributed Resource Management to Support Distributed Application-Specific Quality of Service

Reliable multicast transport architecture designed for heterogeneous mobile IP environment using cross-layerinformation for enhanced Quality of Service (QoS) and seamless handover is discussed. In particular, application-specific reliable multicast retransmission schemes are proposed, which are aimed to minimize the protocol overhead taking into account behaviour of mobile receivers (loss of connectivity and handover) and the specific application requirements for reliable delivery (such as carousel, one-to-many download and streaming deliverycombined with recording). The proposed localized retransmission strategies are flexible configured for tree-based multicast transport. Cross layer interactions in order to enhance reliable transport and support seamless handover is discussed considering IEEE 802.21 media independent handover mechanisms. The implementation is based on Linux IPv6 environment. Simulations in ns2 focusing on the benefits of the proposed multicast retransmission schemes for particular application scenarios are presented.

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Domain-Specific Language for Describing Grid Applications

Software Applications ◽

10.4018/978-1-60566-060-8.ch024 ◽

2009 ◽

pp. 328-365

Author(s):

Enis Afgan ◽

Purushotham Bangalore ◽

Jeff Gray

Keyword(s):

Quality Of Service ◽

Grid Computing ◽

Specific Language ◽

Domain Specific ◽

Application Deployment ◽

Grid Applications ◽

Computing Environments ◽

Grid Application ◽

Application Specific

Grid computing environments are dynamic and heterogeneous in nature. In order to realize application- specific Quality of Service agreements within a grid, specifications at the level of an application are required. This chapter introduces an XML-based schema language (called the Application Specification Language, ASL) and a corresponding modeling tool that can be used to describe applications in grid computing environments. Such application descriptions allow derivation of guided and autonomic service developments for installation and invocation routines throughout the grid. In order to promote the language and ease the application description process, a domain-specific tool is also introduced. Based on our experience, the ASL in combination with higher level models improves, simplifies and promotes the grid application deployment process while simultaneously minimizing tedious and error-prone tasks such as manual application description composition.

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A New Resource Management Scheme for Ad Hoc and Sensor Networks

African Journal of Information & Communication Technology ◽

10.5130/ajict.v1i1.26 ◽

2005 ◽

Vol 1 (1) ◽

pp. 9 ◽

Cited By ~ 3

Author(s):

Ronan De Renesse ◽

Vasilis Friderikos ◽

Hamid Aghvami

Keyword(s):

Quality Of Service ◽

Resource Management ◽

Sensor Networks ◽

Ad Hoc ◽

Recent Literature ◽

Best Effort ◽

Network Layer ◽

Management Scheme ◽

Real Challenge

Ad hoc and sensor networks have received tremendous attention in the recent literature due to its unpredictable nature and its many applications. Imposing any kind of reliability in such networks represents a real challenge. In this paper, we propose a new resource management scheme which virtually reserves and releases resources at the network layer when necessary. Results show that our scheme distributes resources efficiently between Best Effort and Quality of Service traffics even when congestion arises.

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