Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
28 lines
843 B
Matlab
28 lines
843 B
Matlab
function [H,antenna_index] = antenna_selection(HS)
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t = size(HS);
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subcarr_chunk = 5; % number of subcarriers per chunk
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antenna_index = zeros(t(3)/subcarr_chunk,t(5));
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H = zeros(1,t(2),t(3),t(4),t(5));
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if (t(1) == 2) %%%selection
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for chunk = 1:t(3)/subcarr_chunk
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for usr =1:t(5)
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chunks = (chunk-1)*subcarr_chunk+1:chunk*subcarr_chunk;
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if (norm(squeeze(HS(1,:,chunks,:,usr)),'fro') > norm(squeeze(HS(2,:,chunks,:,usr)),'fro'))
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antenna_index(chunk,usr) = 1;
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H(:,:,chunks,:,usr) = HS(1,:,chunks,:,usr);
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else
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antenna_index(chunk,usr) = 2;
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H(:,:,chunks,:,usr) = HS(2,:,chunks,:,usr);
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end
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end
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end
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else
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%warning('[antenna selection] No antennas to select from :(');
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H = HS;
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antenna_index = [];
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end
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