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Power Allocation an...
Power Allocation and Bit Loading for Spatial Multiplexing in MIMO Systems
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- Zhang, Xi (author)
- KTH,Signaler, sensorer och system
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- Ottersten, Björn, 1961- (author)
- KTH,Signaler, sensorer och system,Tal, musik och hörsel
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(creator_code:org_t)
- NEW YORK : IEEE, 2003
- 2003
- English.
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In: Proceedings IEEE International Conference on Acoustics, Speech, and Signal Processing. - NEW YORK : IEEE. ; , s. 53-56, s. 53-56
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The power assignment problem is important for Multiple-Input-Multiple-Output (MIMO) systems to achieve high capacity. Although this problem is solved by well-known water filling algorithms, this does not provide an optimal solution if the system is constrained to a fixed raw bit error rate threshold and to discrete modulation orders. In this work an approximate approach, called QoS based WF, is proposed to solve the power assignment problem with such constrains. It is shown to outperform quantization of the conventional water filling solution and a well known bit loading algorithm (Chow’s algorithm) used in the Digital Subscriber Lines (DSL).
Subject headings
- 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)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datavetenskap (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Sciences (hsv//eng)
Keyword
- Bit error rate
- DSL
- Filling
- MIMO
- Power distribution
- Quantization
- Receiving antennas
- Scattering
- Sensor systems
- Singular value decomposition
- Acoustics
- Computer science
Publication and Content Type
- ref (subject category)
- kon (subject category)
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