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Partial joint proce...
Partial joint processing for frequency selective channels
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- Lakshmana, Tilak Rajesh, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Botella Mascarell, Carmen, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Svensson, Tommy, 1970 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Xu, Xiaodong (author)
- Beijing University of Posts and Telecommunications (BUPT)
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- Li, Jingya, 1986 (author)
- Beijing University of Posts and Telecommunications (BUPT)
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- Chen, Xin, 1980 (author)
- Beijing University of Posts and Telecommunications (BUPT)
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(creator_code:org_t)
- ISBN 9781424435746
- 2010
- 2010
- English.
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In: IEEE Vehicular Technology Conference. - 1550-2252. - 9781424435746
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http://publications.... (primary) (free)
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https://doi.org/10.1...
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Abstract
Subject headings
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- In this paper, we consider a static cluster of base stations where joint processing is allowed in the downlink. The partial joint processing scheme is a user-centric approach where subclusters or active sets of base stations are dynamically defined for each user in the cluster. In frequency selective channels, the definition of the subclusters or active set thresholding of base stations can be frequency adaptive (per resource block) or non-adaptive (averaged over all the resource blocks). Frequency adaptive thresholding improves the average sum-rate of the cluster, but at the cost of an increased user data interbase information exchange with respect to the non-adaptive frequency thresholding case. On the other hand, the channel state information available at the transmitter side to design the beamforming matrix is very limited and rank deficiency problems arise for low values of active set thresholding and users located close to the base station. To solve this problem, an algorithm is proposed that defines a cooperation area over the cluster where the partial joint processing scheme can be performed, frequency adaptive or non-adaptive, for a given active set threshold value.
Subject headings
- 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 -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
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