In millimeter-wave (mm-wave) cellular systems, beamforming antennas are necessary at both the base station (BS) and mobile station (MS) to compensate for high attenuation in mm-wave frequency bands and to extend the transmission range. In space-division multiple access (SDMA) systems, the challenge is the inter-beam interference (IBI) caused by adjacent beams that are formed by the BS in the same cell and BSs in neighboring cells. The beams that are formed toward MSs in each cell may generate significant interference to MSs in neighboring cells, especially for MSs at the cell boundary. In this paper, we propose four different digital precoding techniques (Type-1, Type-2, Type-3, and Type-4) to reduce IBI in mm-wave cellular systems with a hybrid beamformer.


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    Title :

    Inter-Beam Interference Reduction Technique for Millimeter-Wave Cellular Systems Using Hybrid Beamforming


    Contributors:


    Publication date :

    2018-08-01


    Size :

    609833 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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