Paper Info
Title
Evaluation of IR-HARQ schemes in FBMC/OQAM systems with imperfect CSIR.
Abstract
This paper characterizes the sources of distortion of offset-QAM based filter bank multicarrier systems when perfect channel state information at the receiver (CSIR) is not available. The statistical information of the distortion reveals that the mapping scheme, which determines how symbols are inserted in the frequency-time grid, can be optimized to reduce the impact of the estimation error. Moreover, the distortion analysis has been exploited to design variable incremental redundancy hybrid automatic repeat request (IR-HARQ) schemes. Numerical results show that the algorithm devised in this work guarantees the target block error rate (BLER) in low mobility scenarios. In addition, the proposed variable IR-HARQ scheme allows to relinquish up to 75 % of the resources to other users when the initial transmission fails.
Year
Venue
Field
2017
European Conference on Networks and Communications
Hybrid automatic repeat request,Block Error Rate,Computer science,Filter bank,Signal-to-noise ratio,Algorithm,Real-time computing,Distortion,Orthogonal frequency-division multiplexing,Grid,Channel state information
DocType
ISSN
Citations 
Conference
2475-6490
0
PageRank 
References 
Authors
0.34
5
6
Name
Order
Citations
PageRank
marius caus lopez18714.16
Mònica Navarro2296.01
Xavier Mestre326936.05
Ana I. Pérez-Neira440152.50
Guillem Femenias535445.43
Felip Riera-Palou621131.02