Distributed Hybrid Precoding for Indoor Deployments Using Millimeter Wave Band

Table 1

Example of DAB creation for a DAS system with BSs equipped with four antennas distributed in two RAUs.

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(i) Selection of a DFT codebook suitable for each RAU.

(ii) Addition of the null codeword:

(iii) Generation of codewords combination:

(iv) Deletion of null codeword and normalization of every codeword:

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