Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers

Research Article

Interference Mitigation Based on Enhanced Interference PMI Notification

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  • @INPROCEEDINGS{10.1007/978-3-642-30493-4_42,
        author={Jiqing Ni and Bingquan Li and Zesong Fei and Jingming Kuang},
        title={Interference Mitigation Based on Enhanced Interference PMI Notification},
        proceedings={Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers},
        proceedings_a={WICON},
        year={2012},
        month={10},
        keywords={multi-cell scenarios interference mitigation weight vector interference reject combine (IRC)},
        doi={10.1007/978-3-642-30493-4_42}
    }
    
  • Jiqing Ni
    Bingquan Li
    Zesong Fei
    Jingming Kuang
    Year: 2012
    Interference Mitigation Based on Enhanced Interference PMI Notification
    WICON
    Springer
    DOI: 10.1007/978-3-642-30493-4_42
Jiqing Ni1,*, Bingquan Li1,*, Zesong Fei1,*, Jingming Kuang1
  • 1: Beijing Institute of Technology
*Contact email: njq@bit.edu.cn, lbq@bit.edu.cn, feizesong@bit.edu.cn

Abstract

This paper considers interference mitigation in multicell scenarios where transmitters and receivers are both equipped with multiple antennas. In multicell system, both the local Pre-coding Matrix Index (PMI) and the interference PMI can be utilized by Interference Reject Combing (IRC) algorithm, and more interference information can be obtained from the enhanced interference PMI notification. The IRC interference mitigation algorithm can deal with both noise and interference. The specific formulas of calculating receiver weight vector (matrix) based on different criterions are given. And the IRC-adaptive algorithm is proposed, which can have a compromise effect between the complexity and interference mitigation. It is shown in the simulation results that the receiver algorithms can improve the system performance effectively.