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  4. Efficient maximum likelihood detection with imperfect channel state information for interference-limited MIMO systems
 
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Efficient maximum likelihood detection with imperfect channel state information for interference-limited MIMO systems

Publikationstyp
Conference Paper
Date Issued
2015
Sprache
English
Author(s)
Zhou, Guangxia  
Xu, Wen  
Bauch, Gerhard  
Institut
Nachrichtentechnik E-8  
TORE-URI
http://hdl.handle.net/11420/6325
Citation
SCC 2015 - 10th International ITG Conference on Systems, Communications and Coding: (2015)
Contribution to Conference
10th International ITG Conference on Systems, Communications and Coding (SCC 2015)  
Publisher Link
https://ieeexplore.ieee.org/document/7052089
Scopus ID
2-s2.0-85084012972
Publisher
IEEE
Advanced interference-aware detectors are being studied for 3GPP LTE-A to mitigate interference in multi-cell networks. In practical applications, imperfect channel estimates over noisy channels are inevitable. Ignoring them leads to severe performance degradation. The aim of this paper is to investigate a method for an interference-aware maximum likelihood detector to mitigate the impact of channel estimation errors. Simulation results for typical 3GPP LTE/LTE-A show the new method can provide flexibility and ability to deal with the channel estimation errors and to achieve a better trade-off between complexity (e.g., in terms of operations) and performance (e.g., in terms of error rate) in interference-limited scenarios. The proposed low-complexity CEN-ML sphere detector can have a gain of more than 5dB than the other investigated detectors for 16-QAM at a target coded block error rate of 0.01.
Subjects
3GPP LTE/LTE-Advanced
Channel estimation
Inter-cell interference
Joint detection
NAICS
Sphere decoder
DDC Class
004: Informatik
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