Adaptive CSI feedback scheme to maximize the throughput in IEEE 802.11ac system

Adaptive CSI feedback scheme to maximize the throughput in IEEE 802.11ac system

In this letter, we propose a low-complexity adaptive channel state information (CSI) feedback scheme to maximize the throughput in IEEE 802.11ac systems. We analyze the two factors - the interference and the feedback overhead -and develop a method to attain an optimal CSI feedback quantization level...

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Hauptverfasser: Hyunsub Kim, Yongmin Jung, Jangyong Park, Jaeseok Kim
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Adaptive systems
Complexity theory
CSI feedback
Decoding
DL MU-MIMO system
IEEE 802.11ac system
Interference
MIMO
Receiving antennas
Throughput
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Beschreibung
Zusammenfassung:In this letter, we propose a low-complexity adaptive channel state information (CSI) feedback scheme to maximize the throughput in IEEE 802.11ac systems. We analyze the two factors - the interference and the feedback overhead -and develop a method to attain an optimal CSI feedback quantization level with minimal additional complexity. Our numerical results and complexity comparisons verify the efficiency of the proposed scheme in terms of throughput and complexity.
ISSN:0747-668X
2159-1423
DOI:10.1109/ISCE.2014.6884319