The paper studies the multi-cell cooperation scheme under the time and frequency doubly selective channels, in which the multi-cell co-channel interference are jointly eliminated with the inter-symbol interference to enhance the transmission reception. The basic idea of interference alignment is exploited, with which the link-level interference and network-level interference are aligned to the same dimension before canceled. Instead of assuming the perfect channel information is available at the receivers, an embedded pilot framework is also proposed to track and update the channel state information every short time period, making the proposed scheme more feasible for practical application. Additionally, the pilot design is also discussed and an optimal embedded pilot scheme is derived.


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    Title :

    Generalized Interference Alignment for Multi-Cell Cooperative Transmission over Doubly Selective Channels


    Contributors:
    Liu, Heng (author) / Lu, Jiayi (author) / Liu, Tianju (author) / Hao, Li (author) / Ma, Zheng (author)


    Publication date :

    2019-04-01


    Size :

    944973 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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