Title :
Feedback scaling for downlink comp with orthogonal and non-orthogonal waveforms
Author :
Cassiau, Nicolas ; Ktenas, Dimitri ; Wunder, Gerhard ; Kasparick, Martin
Author_Institution :
Leti, CEA, Grenoble, France
Abstract :
In this paper, we study the problem of limited feedback and channel aging in the context of Filter Bank Multi-Carrier (FBMC) modulation for multi-user downlink cooperation between cells. Specifically, we investigate the robustness of FBMC in downlink Coordinated Multi Point (CoMP) scenarios with respect to standard compliant feedback link and MAC related asynchronisms such as outdated channel state information, considering also different user velocities. Previous work showed that FBMC has a better packet error rate (PER) performance compared to OFDM, leading to improved throughput performance in system level simulations. These results are shown by system simulations to be robust in scenarios with limited feedback and channel aging as well. We also provide an analytical investigation.
Keywords :
channel bank filters; cooperative communication; error statistics; FBMC modulation; MAC related asynchronisms; PER performance; channel aging; downlink CoMP; downlink coordinated multipoint scenarios; feedback scaling; filter bank multicarrier modulation; multiuser downlink cooperation; non-orthogonal waveforms; orthogonal waveforms; outdated channel state information; packet error rate performance; standard compliant feedback link; system level simulations; throughput performance improvement; user velocities; Base stations; Delays; Downlink; OFDM; Robustness; Signal to noise ratio; Throughput; CoMP; FBMC Limited Feedback; MIMO;
Conference_Titel :
Networks and Communications (EuCNC), 2014 European Conference on
Conference_Location :
Bologna
DOI :
10.1109/EuCNC.2014.6882648
