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Symbol-level and mu...
Symbol-level and multicast precoding for multiuser multiantenna downlink : A state-of-the-art, classification, and challenges
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- Alodeh, M. (författare)
- Univ Luxembourg, Luxembourg
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- Spano, D. (författare)
- Univ Luxembourg, Luxembourg
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- Kalantari, Ashkan (författare)
- Linköpings universitet,Kommunikationssystem,Tekniska fakulteten,Univ Luxembourg, Luxembourg
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- Tsinos, C. G. (författare)
- Univ Luxembourg, Luxembourg
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- Christopoulos, D. (författare)
- Newtec Satcom, Belgium
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- Chatzinotas, S. (författare)
- Univ Luxembourg, Luxembourg
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- Ottersten, Björn, 1961- (författare)
- Interdisciplinary Centre for Security Reliability and Trust, University of Luxembourg, Luxembourg City, Luxembourg,Univ Luxembourg, Luxembourg
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2018
- 2018
- Engelska.
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Ingår i: IEEE Communications Surveys and Tutorials. - : Institute of Electrical and Electronics Engineers (IEEE). - 1553-877X. ; 20:3, s. 1733-1757
- Relaterad länk:
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https://urn.kb.se/re...
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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
- Precoding has been conventionally considered as an effective means of mitigating or exploiting the interference in the multiantenna downlink channel, where multiple users are simultaneously served with independent information over the same channel resources. The early works in this area were focused on transmitting an individual information stream to each user by constructing weighted linear combinations of symbol blocks (codewords). However, more recent works have moved beyond this traditional view by: 1) transmitting distinct data streams to groups of users and 2) applying precoding on a symbol-per-symbol basis. In this context, the current survey presents a unified view and classification of precoding techniques with respect to two main axes: 1) the switching rate of the precoding weights, leading to the classes of block-level and symbol-level precoding and 2) the number of users that each stream is addressed to, hence unicast, multicast, and broadcast precoding. Furthermore, the classified techniques are compared through representative numerical results to demonstrate their relative performance and uncover fundamental insights. Finally, a list of open theoretical problems and practical challenges are presented to inspire further research in this area1.1The concepts of precoding and beamforming are used interchangeably throughout this paper.
Ämnesord
- 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 -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Nyckelord
- block-level precoding
- broadcast
- channel state information
- Directional modulation
- multicast
- multiuser MISO
- symbol-level precoding
- unicast
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