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Performance evaluat...
Performance evaluation of coordinated multi-point transmission schemes with predicted CSI
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- Li, Jingya, 1986 (författare)
- Dept of Signals and Systems, Chalmers Tekniska Universitet, Göteborg,Chalmers tekniska högskola,Chalmers University of Technology
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- Papadogiannis, Agisilaos, 1982 (författare)
- Dept of Signals and Systems, Chalmers Tekniska Universitet, Göteborg,Chalmers tekniska högskola,Chalmers University of Technology
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- Apelfröjd, Rikke (författare)
- Uppsala universitet,Signaler och System,Uppsala University
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- Svensson, Tommy, 1970 (författare)
- Dept of Signals and Systems, Chalmers Tekniska Universitet, Göteborg,Chalmers tekniska högskola,Chalmers University of Technology
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- Sternad, Mikael (författare)
- Uppsala universitet,Signaler och System,Uppsala University
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(creator_code:org_t)
- ISBN 9781467325691
- 2012
- 2012
- Engelska.
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Ingår i: IEEE Conference on Personal, Indoor and Mobile Radio Communications, PIMRC, Sydney, Australien. - 9781467325691 ; , s. 1055-1060
- Relaterad länk:
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http://publications.... (primary) (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Coordinated multi-point (CoMP) transmission is considered as an efficient technique to improve cell-edge performance as well as system spectrum efficiency. In CoMP-enabled systems, a cluster of coordinated base stations (BSs) are typically assumed to be connected to a control unit (CU) via backhaul links, and the provided performance gain relies heavily on the quality of the channel state information (CSI) available at the CU side. In this paper, we consider the downlink of a CoMP cluster and compare three different CoMP transmission schemes: zero-forcing coherent joint transmission, non-coherent joint transmission and coordinated scheduling. Moreover, for each of the analyzed schemes, the performance in terms of average sum rate of the CoMP cluster is studied with predicted CSI, considering the effects of the feedback and backhaul latency, as well as the user mobility. Compared to zero-forcing coherent joint transmission, we show that non-coherent joint transmission and coordinated scheduling are more robust to channel uncertainty. In addition, depending on the latency, user mobility and user locations, different schemes would achieve the highest average sum rate performance. Hence, a system could switch between the transmission schemes to improve the sum rate.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Signal processing
- Signalbehandling
- Elektroteknik med inriktning mot signalbehandling
- Electrical Engineering with specialization in Signal Processing
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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