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Utility-based Adapt...
Utility-based Adaptive Resource Allocation in Hybrid Wireless Networks
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- Curescu, Calin, 1975- (author)
- Linköpings universitet,Tekniska högskolan,RTSLAB - Laboratoriet för realtidssystem
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- Nadjm-Tehrani, Simin, 1958- (author)
- Linköpings universitet,Tekniska högskolan,RTSLAB - Laboratoriet för realtidssystem
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- Cao, Bing (author)
- Computer Science Department, University of North Carolina at Charlotte, NC
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- Dahlberg, Teresa A. (author)
- Computer Science Department, University of North Carolina at Charlotte, NC
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(creator_code:org_t)
- Conference Proceedings : IEEE Computer Society, 2005
- 2005
- English.
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In: The 2nd IEEE International Conference on Quality of Service in Heterogeneous Wired/Wireless Networks QSHINE,2005. - Conference Proceedings : IEEE Computer Society. ; , s. 44-
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Service availability in wireless networks is highly dependent on efficient resource allocation and guaranteed Quality of Service (QoS) amid overloads and failures. This paper addresses optimal bandwidth allocation in a hybrid network (cellular and ad hoc), where added reach through an ad hoc overlay is combined with the stability and essential services of a cellular network. The paper builds on a near optimal approach in which Resource-Utility functions are used as a means of adaptive delivery of QoS, user differentiation, and maximisation of system level utility. It distinguishes between non-adaptive, semi-adaptive, and fully adaptive applications. First, the global cellular bandwidth allocation (in the presence of multiple routes through ad hoc relays) is cast in terms of a Linear Programming problem. Second, a heuristic algorithm that has far lower computational overhead and accrues at worse 12% less than the utility of the optimal solution is presented. Both algorithms are implemented within a model of a hybrid network on top of the Jsim simulation environment. Comparative tudies are made to show effective load balancing and crash tolerance in the presence of a high traffic overload.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
Keyword
- bandwidth allocation
- wireless networks
- utility-based optimisation
- Computer science
- Datavetenskap
Publication and Content Type
- ref (subject category)
- kon (subject category)
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