Time-switched Space-time Coded OFDM over Time-varying Channels

Jiyu Jin; Guiyue Jin; Zhisen Wang

6th International ICST Conference on Communications and Networking in China

Research Article

Time-switched Space-time Coded OFDM over Time-varying Channels

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/ChinaCom.2011.6158136,
    author={Jiyu Jin and Guiyue Jin and Zhisen Wang},
    title={Time-switched Space-time Coded OFDM over Time-varying Channels},
    proceedings={6th International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2012},
    month={3},
    keywords={mimo ofdm time-switched transmit diversity space time coding time-vary channel},
    doi={10.1109/ChinaCom.2011.6158136}
}

Jiyu Jin
Guiyue Jin
Zhisen Wang
Year: 2012
Time-switched Space-time Coded OFDM over Time-varying Channels
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158136

Jiyu Jin¹^,*, Guiyue Jin¹, Zhisen Wang¹

1: Dalian Polytechnic University

*Contact email: jiyu.jin@dlpu.edu.cn

Abstract

In this paper, we propose a time-switched space-time coded orthogonal frequency division multiplexing scheme over time-varying channels. The base station can use the proposed TSST-OFDM scheme with only two power amplifiers for four transmit antennas. For a given space-time code, we show that the signal to inter-antenna interference ratio is a function of Doppler frequency in time-varying channels. The proposed scheme not only gets time-switched diversity and lower decoding complexity, but also less sensitive to the time-varying channels, hence it exhibits better performance than quasi-orthogonal space-time coded scheme.

Keywords: mimo ofdm time-switched transmit diversity space time coding time-vary channel

Published: 2012-03-27
Publisher: IEEE

: http://dx.doi.org/10.1109/ChinaCom.2011.6158136