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User Scheduling for...
User Scheduling for Sum-Rate Maximization Under Minimum Rate Constraints for the MIMO IBC
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- Antonioli, Roberto P. (författare)
- Univ Fed Ceara, Wireless Telecom Res Grp, BR-60440900 Fortaleza, Ceara, Brazil.
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- Fodor, Gabor, 1964- (författare)
- KTH,Reglerteknik
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- Soldati, Pablo (författare)
- Ericsson Res, Stand & Technol, S-16480 Stockholm, Sweden.
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- Maciel, Tarcisio F. (författare)
- Univ Fed Ceara, Wireless Telecom Res Grp, BR-60440900 Fortaleza, Ceara, Brazil.
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Univ Fed Ceara, Wireless Telecom Res Grp, BR-60440900 Fortaleza, Ceara, Brazil Reglerteknik (creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2019
- 2019
- Engelska.
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Ingår i: IEEE Wireless Communications Letters. - : Institute of Electrical and Electronics Engineers (IEEE). - 2162-2337 .- 2162-2345. ; 8:6, s. 1591-1595
- Relaterad länk:
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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
- While the problem of sum-rate maximization of the multiple-input-multiple-output interference broadcast channel (MIMO IBC) has been extensively studied, most of the proposed solutions do not ensure a minimum rate for each scheduled user. In practice, many services require a minimum rate from the underlying communication links. Therefore, in this letter, we consider a sum-rate maximization problem with per-link minimum rate constraints for the MIMO IBC. The key idea is scheduling a suitable subset of the communication links for simultaneous transmissions, such that a minimum rate for each scheduled link can be ensured. To this end, we pose the sum-rate maximization problem as a combinatorial optimization problem, in which we introduce binary variables to the classical transceiver design problem. We propose a centralized solution based on branch-and-bound and a low-complexity semi-distributed scheme, in which a centralized unit is responsible for scheduling decisions, while the transceiver computations are distributed. Simulations show that the proposed solutions handle the user scheduling effectively, while the proposed semi-distributed scheme performs closely to the centralized scheme.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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- art (ämneskategori)
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