Adaptive Frame Structure Design and Adaptation Control Mechanism in MIMO-OFDM Systems

Jing Zhang; Xing Fu; Xiaoxuan Zhu; Jin Xu

2nd International ICST Conference on Communications and Networking in China

Research Article

Adaptive Frame Structure Design and Adaptation Control Mechanism in MIMO-OFDM Systems

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/CHINACOM.2007.4469587,
    author={Jing Zhang and Xing Fu and Xiaoxuan Zhu and Jin Xu},
    title={Adaptive Frame Structure Design and Adaptation Control Mechanism in MIMO-OFDM Systems},
    proceedings={2nd International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2008},
    month={3},
    keywords={Adaptive; MIMO; OFDM; Frame-structure; Doppler Shift},
    doi={10.1109/CHINACOM.2007.4469587}
}

Jing Zhang
Xing Fu
Xiaoxuan Zhu
Jin Xu
Year: 2008
Adaptive Frame Structure Design and Adaptation Control Mechanism in MIMO-OFDM Systems
CHINACOM
IEEE
DOI: 10.1109/CHINACOM.2007.4469587

Jing Zhang¹^,*, Xing Fu¹, Xiaoxuan Zhu²^,*, Jin Xu²

1: Wireless Technology Innovation (WTI) Institute Beijing University of Posts and Telecommunications Beijing, China
2: Key Laboratory of Universal Wireless Communication Beijing University of Posts and Telecommunications Beijing, China

*Contact email: jingzhang.bupt@gmail.com, xiaoxuanzhu@ieee.org

Abstract

With growing demand for large data rate and high reliability wireless communication services, such as multimedia services, link adaptation techniques have emerged as powerful tools for their significant transmission data rate increase, reliability enhancement and spectrum efficiency improvement. In this paper, firstly the redundancy of a unified frame structure has been analyzed and an adaptive frame structure is proposed in pilot aided spatial multiplexing MIMO systems, which provides three different pilot densities for high, middle and low vehicle speed scenarios respectively. Based on the proposed frame structure, a closed-looped control mechanism for frame structure adaptation is developed to adjust pilot density to track the time varying wireless channel characteristics. Finally, its effectiveness has been validated by Monte Carlo simulations.

Keywords: Adaptive; MIMO; OFDM; Frame-structure; Doppler Shift

Published: 2008-03-07
Publisher: IEEE
Modified: 2011-07-14

: http://dx.doi.org/10.1109/CHINACOM.2007.4469587