This paper introduces modulation and coding schemes which encode data into beams of antenna arrays by exploring the angular models of wireless channels. First, the paper presents Generalized Beam Angle Channel Modulation (Gâ€"BACM) which maps the spatial symbols into multiple angles of wave propagation and arrival. Then, space-time block coding (STBC) strategies for Gâ€"BACM are investigated. In the case of Gâ€"BACM configuration with two simultaneous beams, the block of information bits is mapped into three symbols at the encoder: (i) one, spatial, symbol indexing two beams representing the angles of arrival of the two amplitude and phase modulated (APM) carrier signals and (ii) two APM symbols independently transmitted over two beams. Utilizing simultaneous transmissions on two or more beams improves the bandwidth efficiency and is also used to benefit the diversity aspect of the proposed system. Specifically, STBC strategies for Gâ€"BACM are presented where multiple copies of data streams are transmitted across a number of beams rather than antennas as in conventional multiple-input multiple-output (MIMO) systems. The performance of Gâ€"BACM with and without STBC is analyzed in multipath fading channels when trading-off between the system rate and reliability.


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    Title :

    Generalized Beam Angle Channel Modulation with Space-Time Block Coding


    Contributors:


    Publication date :

    2019-09-01


    Size :

    227379 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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