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Joint Space-Frequen...
Joint Space-Frequency Optimization in Multi User MIMO System
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- Zhang, Xi (författare)
- KTH,Signaler, sensorer och system
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- Ottersten, Björn, 1961- (författare)
- KTH,Signaler, sensorer och system
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(creator_code:org_t)
- NEW YORK : IEEE, 2003
- 2003
- Engelska.
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Ingår i: IEEE International Symposium on Signal Processing and Information Technology. - NEW YORK : IEEE. ; , s. 170-173
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Herein, joint space-time multiplexing in a multi carrier multiple input multiple output (MIMO) system is considered. Previous results concerning the spatial multiplexing optimization are used to address the joint problem of carrier assignment and choice of beamforming weights in a multi user MIMO system. For practical reasons, the joint optimization is divided into two parts: subcarrier assignment based on beamformer characteristics to adjust the carrier load, followed by beamforming optimization with subcarrier reassignment. The goal is to minimize total downlink transmit power while keeping the fixed user data rates. The proposed multiplexing scheme is evaluated on a number of numerical examples.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
Nyckelord
- Array signal processing
- Baseband
- Downlink
- Interference
- MIMO
- Optimization methods
- Receiving antennas
- Sensor systems
- Space technology
- Transmitting antennas
- Computer science
- Telecommunication
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)