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Performance Analysi...
Performance Analysis of Contention Based Bandwidth Request Mechanisms in WiMAX Networks
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- Ni, Qiang (författare)
- Brunel University, United Kingdom
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- Hu, Ling (författare)
- Brunel University, United Kingdom
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- Vinel, Alexey, 1983- (författare)
- Department of Communications Engineering, Tampere University, Finland of Technology
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- Xiao, Yang (författare)
- University of Alabama, USA
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- Hadjinicolaou, Marios (författare)
- Brunel University, UK
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(creator_code:org_t)
- Piscataway, N.J. IEEE Press, 2010
- 2010
- Engelska.
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Ingår i: IEEE Systems Journal. - Piscataway, N.J. : IEEE Press. - 1932-8184 .- 1937-9234. ; 4:4, s. 477-486
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https://hh.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- WiMAX networks have received wide attention as they support high data rate access and amazing ubiquitous connectivity with great quality-of-service (QoS) capabilities. In order to support QoS, bandwidth request (BW-REQ) mechanisms are suggested in the WiMAX standard for resource reservation, in which subscriber stations send BW-REQs to a base station which can grant or reject the requests according to the available radio resources. In this paper we propose a new analytical model for the performance analysis of various contention based bandwidth request mechanisms, including grouping and no-grouping schemes, as suggested in the WiMAX standard. Our analytical model covers both unsaturated and saturated traffic load conditions in both error-free and error-prone wireless channels. The accuracy of this model is verified by various simulation results. Our results show that the grouping mechanism outperforms the no-grouping mechanism when the system load is high, but it is not preferable when the system load is light. The channel noise degrades the performance of both throughput and delay. © 2010 IEEE.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
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