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Resource allocation...
Resource allocation for OFDMA systems with multi-cell joint transmission
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- Li, Jingya, 1986 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Chen, Xin, 1980 (författare)
- Beijing University of Posts and Telecommunications (BUPT)
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- Botella Mascarell, Carmen, 1979 (författare)
- Universitat de Valencia
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- Svensson, Tommy, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Eriksson, Thomas, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- ISBN 9781467309714
- 2012
- 2012
- Engelska.
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Ingår i: 2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2012. Cesme, 17-20 June 2012. - 9781467309714 ; , s. 179-183
- Relaterad länk:
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http://publications.... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This paper considers the downlink resource allocation of a coordinated multi-cell cluster in OFDMA systems with universal frequency reuse. Multi-cell joint transmission is considered via zero-forcing precoding. Furthermore, joint optimization of the user selection and power allocation across multiple subchannels and multiple cells is studied. The objective is to maximize the weighted sum rate under per-base-station power constraints. Based on general duality theory, two iterative resource allocation algorithms are proposed and compared with the optimal solution, which requires an exhaustive search of all possible combinations of users over all subchannels. Simulation results show that the two proposed algorithms achieve a performance very close to the optimal, with much lower computational complexity. In addition, we show that joint user set selection across multiple subchannels significantly improves the system performance in terms of the weighted sum rate.
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 -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- multi-cell joint transmission
- OFDMA
- scheduling
- power control
- base-station coordination
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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