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Joint Scheduling for Multi-Service in Coordinated Multi-Point OFDMA Networks
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- Huang, Binru (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Li, Jingya, 1986 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Svensson, Tommy, 1970 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
- (creator_code:org_t)
- ISBN 9781467309905
- 2012
- 2012
- English.
- In: IEEE Vehicular Technology Conference. - 1550-2252. - 9781467309905 ; , s. Art. no. 6240135-
- Conference paper (peer-reviewed)
Abstract
Subject headings
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- In this paper, the issues upon user scheduling in the downlink packet transmission for multiple services are addressed for coordinated multi-point (CoMP) OFDMA networks. We consider mixed traffic with voice over IP (VOIP) and best effort (BE) services. In order to improve cell-edge performance and guarantee diverse quality of service (QoS), a utility-based joint scheduling algorithm is proposed, which consists of two steps: ant colony optimization (ACO) based joint user selection and greedy subchannel assignment. We compare the proposed algorithm with the greedy user selection (GUC) based scheme. Via simulation results, we show that 95% of BE users are satsified with average cell-edge data rate greater than 200kbps by using either of the two algorithms. Whereas, our proposed algorithm ensures that more than 95% of VoIP users are satisfied with packet drop ratio less than 2%, compared to 78% by the GUC based algorithm.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Keyword
- multiple services
- coordinated multi-point (CoMP)
- Ant colony optimization (ACO)
- OFDMA
- scheduling
Publication and Content Type
- kon (subject category)
- ref (subject category)
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