Reference : Symbol-level and Multicast Precoding for Multiuser Multiantenna Downlink: A State-of-...
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/10993/35734
Symbol-level and Multicast Precoding for Multiuser Multiantenna Downlink: A State-of-the-art, Classification and Challenges
English
Alodeh, Maha []
Spano, Danilo mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Kalantari, Ashkan []
Tsinos, Christos mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Christopoulos, Dimitrios []
Chatzinotas, Symeon mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Ottersten, Björn mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Apr-2018
IEEE Communications Surveys and Tutorials
IEEE Communications Society
Yes
1553-877X
New York
NY
[en] Directional modulation ; multiuser MISO ; symbol-level precoding ; block-level precoding ; channel state information ; broadcast ; unicast ; multicast
[en] 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: i) transmitting distinct data streams to groups of users and ii) 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: i) the switching rate of the precoding weights, leading to the classes of block-level and symbol-level precoding, ii) 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 area.
Researchers ; Professionals ; Students ; General public
http://hdl.handle.net/10993/35734
FnR ; FNR10079323 > Danilo Spano > BroadSat > Multibeam Joint Processing for Broadband/Broadcast Convergence in Next Generation High Throughput Satellite Communications > 01/03/2015 > 14/01/2019 > 2015

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