Communications and Networking. 11th EAI international Conference, ChinaCom 2016 Chongqing, China, September 24-26, 2016, Proceedings, Part II

Research Article

Preamble Design for Collision Detection and Channel Estimation in Machine-Type Communication

  • @INPROCEEDINGS{10.1007/978-3-319-66628-0_28,
        author={Shilei Zheng and Fanggang Wang and Xia Chen},
        title={Preamble Design for Collision Detection and Channel Estimation in Machine-Type Communication},
        proceedings={Communications and Networking. 11th EAI international Conference, ChinaCom 2016 Chongqing, China, September 24-26, 2016, Proceedings, Part II},
        proceedings_a={CHINACOM},
        year={2017},
        month={10},
        keywords={Asynchronization Contention-based random access Collision detection Channel estimation Preamble},
        doi={10.1007/978-3-319-66628-0_28}
    }
    
  • Shilei Zheng
    Fanggang Wang
    Xia Chen
    Year: 2017
    Preamble Design for Collision Detection and Channel Estimation in Machine-Type Communication
    CHINACOM
    Springer
    DOI: 10.1007/978-3-319-66628-0_28
Shilei Zheng1,*, Fanggang Wang1, Xia Chen1
  • 1: Beijing Jiaotong University
*Contact email: 14120188@bjtu.edu.cn

Abstract

Preamble is widely used for initial synchronization, channel estimation, user identification, and collision detection in communication systems. For machine-type communication (MTC), there are massive machines within one cell. Contention-based random access could be a candidate protocol in this scenario. However, simultaneous transmission of multiple users can lead to signal aliasing. This paper designs a novel structure of preamble. Collisions of multiple users can be detected based on well-designed structure of the preamble. Furthermore, channel state information (CSI) can be estimated as a byproduct in the process of collision detection. We claim that the proposed preambles applies in flat-fading channel, multipath channel and asynchronous scenario. The simulation results validate the accuracy and robustness of the proposed scheme.