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The computation of the achievable sum rate for integer-forcing (IF) linear receivers requires the search for the shortest set of linearly independent lattice vectors (SIVP). Since SIVP is considered an NP-hard problem, we propose two approximations to the IF achievable sum rate. The first approximation is suitable for systems with two antennas at both transmitter and receiver ($2\times 2$ arrays)...
We present a radio channel sounding approach for characterizing three-dimensional radio channel at 10 GHz. The measurement system consists of a vector network analyzer, two dual polarized patch antennas, programmable virtual antenna array in both link ends, together with an automatized measurement control software. The radio channel measurements are performed to validate the detected propagation paths...
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