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In the paper, the authors have discussed the proposed water filling algorithm which has been used for allocating the power to the MIMO channels so as to enhance the capacity of the MIMO network. Here they present a theoretical framework for allocating the power here they have considered a 4x4 MIMO system the system is assumed to be MIMO-OFDM and the channel is assumed to be Flat as under this the convolution integral becomes a simple multiplication operator. Here is this paper, they study the comparison of successive water filling algorithm with the proposed water filling algorithm with the change in the power budget.
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