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This assumption imposes less stringent restrictions on the bandwidth required to obtain channel state information via training.
In the method proposed, Kalman filter is employed to obtain channel estimates during the training symbols.
A great number of massive MIMO works adopt the MMSE estimation method to obtain channel knowledge [5, 8].
The first m ≤ 59 channels are selected from A and removed from B to obtain channel ranking C.
A set of path gains {h l ; l = 0 ~ L - 1} is generated using (3) to obtain channel gains {H(n); n = 0 ~ N c - 1}.
One of the earliest works in formulating training designs to obtain channel estimates for orthogonal frequency division multiplexing (OFDM) systems was [10].
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Subsequently the device was fabricated with soft lithography, casting PDMS in a master to obtain channels about 250 μm deep.
For data offloading, each IoTM wants to obtain channels from its corresponding APO.
These protocols can obtain channels via the control packet handshake negotiation, allowing it to effectively alleviate the hiding terminal problem and reduce waste time caused by transmission delay.
The obtained channel sensitivities are Sx = 7 V/AT, Sy = 9 V/AT and Sz = 11.3 V/AT.
Also, the optimum point for MCHS design is calculated by minimizing the friction factor which obtained channel aspect ratio (αs) is 2.45.
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