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

Author

Hyunsub Kim ; Yongmin Jung ; Jangyong Park ; Jaeseok Kim

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

fYear

2014

fDate

22-25 June 2014

Firstpage

1

Lastpage

2

Abstract

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.

Keywords

MIMO systems; communication complexity; feedback; quantisation (signal); radiofrequency interference; telecommunication standards; wireless LAN; IEEE 802.11ac system; adaptive channel state information feedback scheme; communication complexity; feedback overhead; network throughput; optimal CSI feedback quantization level; radiofrequency interference; Adaptive systems; Complexity theory; Decoding; Interference; MIMO; Receiving antennas; Throughput; CSI feedback; DL MU-MIMO system; IEEE 802.11ac system; interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics (ISCE 2014), The 18th IEEE International Symposium on

Conference_Location

JeJu Island

Type

conf

DOI

10.1109/ISCE.2014.6884319

Filename

6884319