Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
250 lines
10 KiB
Matlab
Executable File
250 lines
10 KiB
Matlab
Executable File
load_channel = 1;
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SNR=10^(SNRdB/10);
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% MMSE regularization factor
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mu = NTx/SNR;
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% noise variance
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n_p=1/SNR;
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% open all files
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for k=1:NUser
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fid(k) = fopen(filename_emos{avail_users(k),idx},'r');
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if (fid(k)==-1)
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error('[eval_data_MU] Error opening file %s', filename_emos{avail_users(k),idx});
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end
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end
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% read the data in chunks of 1000 Frames
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NFrames_max = 1000;
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NFrames_read = zeros(1,NUser);
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NFrames_Tx = max(framestamp_max(:,idx))-min(framestamp_min(:,idx))+1;
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NFreq = 40;
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chunks = 0;
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NFrames_Tx_read = 0; %Number of Tx frames read from file
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NFrames_Tx_proc = 0; %Number of Tx frames processed (with all crc's positive)
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align_matrix = false(NUser,NFrames_Tx);
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for u = 1:NUser
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align_matrix(u,est(avail_users(u),idx).framestamp_tx - min(framestamp_min(avail_users,idx)) + 1) = true;
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end
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crc_matrix = false(NUser,NFrames_Tx);
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for u = 1:NUser
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crc_matrix(u,est(avail_users(u),idx).framestamp_tx - min(framestamp_min(avail_users,idx)) + 1) = ~est(avail_users(u),idx).err_ind;
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end
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NFrames_pos = sum(all(crc_matrix));
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CAP_SU_TDMA_ML = [];
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CAP_SU1x1_TDMA_ML = [];
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CAP_SU1x2_TDMA_ML = [];
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CAP_SU2x2_TDMA_ML = [];
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%CAP_SU_TDMA_DSTTD = [];
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%CAP_SU_TDMA_CL_ML = [];
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%CAP_4U_DPC = zeros(NFreq,NFrames_pos);
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% CAP_4U_ZF = zeros(NFreq,NFrames_pos);
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% CAP_4U_MMSE = zeros(NFreq,NFrames_pos);
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% CAP_4U_AS_ZF = zeros(NFreq,NFrames_pos);
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% CAP_4U_AS_MMSE = zeros(NFreq,NFrames_pos);
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CAP_2U_ZF = zeros(NFreq,NFrames_pos);
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CAP_2U_MMSE = zeros(NFreq,NFrames_pos);
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CAP_2U_AS_ZF = zeros(NFreq,NFrames_pos);
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CAP_2U_AS_MMSE = zeros(NFreq,NFrames_pos);
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% CAP_2U_BD = zeros(NFreq,NFrames_pos);
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% CAP_2U2Tx_ZF = zeros(NFreq,NFrames_pos);
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% CAP_2U2Tx_MMSE = zeros(NFreq,NFrames_pos);
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% Eigval_4U_ZF = zeros(NFreq,NFrames_pos,NUser);
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% gain_4U_ZF = zeros(NFrames_pos,1);
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% gain_4U_MMSE = zeros(NFrames_pos,1);
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% gain_4U_AS_ZF = zeros(NFrames_pos,1);
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% gain_4U_AS_MMSE = zeros(NFrames_pos,1);
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gain_2U_ZF = zeros(NFrames_pos,1);
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gain_2U_MMSE = zeros(NFrames_pos,1);
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gain_2U_AS_ZF = zeros(NFrames_pos,1);
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gain_2U_AS_MMSE = zeros(NFrames_pos,1);
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% gain_2U_BD = zeros(NFrames_pos,2);
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DProf = zeros(NUser, 256/NTx);
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R = zeros(NUser*NTx*NRx);
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R_Tx = zeros(NTx);
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R_Tx_AS = zeros(NTx);
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%% main loop
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%while any(NFrames_read < NFrames(:,idx).')
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%fk 30.1.2008: changed the following two line since it produced an endless loop
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while any(NFrames_read < sum(align_matrix,2).')
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%Tx_frames = (NFrames_Tx_read+1) : min(NFrames_Tx_read + NFrames_max, NFrames_Tx);
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Tx_frames = (NFrames_Tx_read+1) : min(NFrames_Tx_read + NFrames_max,size(align_matrix,2));
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if IFversion>=2
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[H, H_fq, dummy_est, dummy_gps, NFrames_read] = load_estimates2_MU_lm_new(fid, NTx, length(Tx_frames), NFrames_read, align_matrix(:,Tx_frames), IFversion);
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else
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[H, H_fq, dummy_est, dummy_gps, NFrames_read] = load_estimates_MU_lm_new(fid, NTx, length(Tx_frames), NFrames_read, align_matrix(:,Tx_frames), IFversion);
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end
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if isempty(H_fq)
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warning('[eval_data_MU] No data read! Terminating loop.');
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break
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end
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NFrames_Tx_read = NFrames_Tx_read + size(H_fq,4);
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%use only measurements where all users have positive CRC
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H = H(:,:,:,all(crc_matrix(:,Tx_frames)),:);
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H_fq = H_fq(:,:,:,all(crc_matrix(:,Tx_frames)),:);
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chunks = chunks + 1;
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disp(['[eval_data_MU] Chunk = ' num2str(chunks) ', NFrames_read = ' num2str(NFrames_read) ', NFrames_Tx_read = ' num2str(NFrames_Tx_read) ]);
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% normalize H per user
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% the mean squared Frobenius norm has been precomputed in est(k,idx).Hnorm
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% in order to get E(|h_{i,j,k}|^2) = 1, we need
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% size(H_fq) = [NRx,NTx,NFreq,NFrames,Nuser]
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for k=1:NUser
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H(:,:,:,:,k) = H(:,:,:,:,k)*sqrt(NTx*NRx)/sqrt(mean(est(avail_users(k),idx).Hnorm));
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H_fq(:,:,:,:,k) = H_fq(:,:,:,:,k)*sqrt(NTx*NRx)/sqrt(mean(est(avail_users(k),idx).Hnorm));
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end
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%H_fq_MU = cat(4,H_fq_MU,H_fq);
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%H_MU = cat(4,H_MU,H);
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%% calculate different capacities
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disp('[eval_data_MU] Calculating TDMA capacities');
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% CAP_MU_ZF = cat(1,CAP_MU_ZF,capacity_MU_ZF(H_fq,SNR,0));
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CAP_SU_TDMA_ML = cat(1,CAP_SU_TDMA_ML,capacity_SU_TDMA_ML(H_fq,SNR,0));
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CAP_SU1x1_TDMA_ML = cat(1,CAP_SU1x1_TDMA_ML,capacity_SU_TDMA_ML(H_fq(1,1,:,:,:),SNR,0));
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CAP_SU1x2_TDMA_ML = cat(1,CAP_SU1x2_TDMA_ML,capacity_SU_TDMA_ML(H_fq(:,1,:,:,:),SNR,0));
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CAP_SU2x2_TDMA_ML = cat(1,CAP_SU2x2_TDMA_ML,capacity_SU_TDMA_ML(H_fq(:,1:2,:,:,:),SNR,0));
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% CAP_SU_TDMA_DSTTD = cat(1,CAP_SU_TDMA_DSTTD,capacity_SU_TDMA_DSTTD(H_fq,SNR,0));
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% CAP_SU_TDMA_CL_ML = cat(1,CAP_SU_TDMA_CL_ML,capacity_SU_TDMA_CL_ML(H_fq,SNR,0));
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disp('[eval_data_MU] Calculating SDMA capacities');
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for k2=1:size(H_fq,4)
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[HSf,antenna_index] = antenna_selection(H_fq(:,:,:,k2,:));
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for k1=1:size(H_fq,3)
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% % 4 Users, DPC
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% HS = conj(permute(squeeze(H_fq(:,:,k1,k2,:)),[2 1 3]));
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% CAP_4U_DPC(k1,NFrames_Tx_proc + k2) = iterative_waterfill(HS,SNR,50);
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% % 4 Users, Antenna selection
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% HS = squeeze(HSf(:,:,k1,:,:)).';
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% [CAP_4U_AS_MMSE(k1,NFrames_Tx_proc + k2), gain] = MISO_MMSE(HS,n_p,mu);
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% gain_4U_AS_MMSE(NFrames_Tx_proc + k2,:) = gain_4U_AS_MMSE(NFrames_Tx_proc + k2,:) + gain;
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% [CAP_4U_AS_ZF(k1,NFrames_Tx_proc + k2),gain] = MISO_MMSE(HS,n_p,0);
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% gain_4U_AS_ZF(NFrames_Tx_proc + k2,:) = gain_4U_AS_ZF(NFrames_Tx_proc + k2,:) + gain;
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% 2 Users, Antenna selection
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HS = squeeze(HSf(:,:,k1,:,sched_users)).';
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[CAP_2U_AS_MMSE(k1,NFrames_Tx_proc + k2), gain] = MISO_MMSE(HS,n_p,mu);
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gain_2U_AS_MMSE(NFrames_Tx_proc + k2,:) = gain_2U_AS_MMSE(NFrames_Tx_proc + k2,:) + gain;
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[CAP_2U_AS_ZF(k1,NFrames_Tx_proc + k2), gain] = MISO_MMSE(HS,n_p,0);
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gain_2U_AS_ZF(NFrames_Tx_proc + k2,:) = gain_2U_AS_ZF(NFrames_Tx_proc + k2,:) + gain;
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R_Tx_AS = R_Tx+HS'*HS;
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% % 4 Users, No Antenna selection
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% HS = squeeze(H_fq(1,:,k1,k2,:)).';
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% [CAP_4U_MMSE(k1,NFrames_Tx_proc + k2), gain] = MISO_MMSE(HS,n_p,mu);
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% gain_4U_MMSE(NFrames_Tx_proc + k2,:) = gain_4U_MMSE(NFrames_Tx_proc + k2,:) + gain;
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% [CAP_4U_ZF(k1,NFrames_Tx_proc + k2), gain, eigval] = MISO_MMSE(HS,n_p,0);
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% gain_4U_ZF(NFrames_Tx_proc + k2,:) = gain_4U_ZF(NFrames_Tx_proc + k2,:) + gain;
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% Eigval_4U_ZF(k1,k2,:) = eigval;
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% 2 Users, No Antenna selection
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HS = squeeze(H_fq(1,:,k1,k2,sched_users)).';
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[CAP_2U_MMSE(k1,NFrames_Tx_proc + k2), gain] = MISO_MMSE(HS,n_p,mu);
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gain_2U_MMSE(NFrames_Tx_proc + k2,:) = gain_2U_MMSE(NFrames_Tx_proc + k2,:) + gain;
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[CAP_2U_ZF(k1,NFrames_Tx_proc + k2), gain] = MISO_MMSE(HS,n_p,0);
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gain_2U_ZF(NFrames_Tx_proc + k2,:) = gain_2U_ZF(NFrames_Tx_proc + k2,:) + gain;
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R_Tx = R_Tx+HS'*HS;
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% % 2 Users, 2 Antennas, block diagonalization
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% HS = squeeze(H_fq(:,:,k1,k2,sched_users));
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% [CAP_2U_BD(k1,NFrames_Tx_proc + k2), gain] = BD(HS,n_p);
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% gain_2U_BD(NFrames_Tx_proc + k2,:) = gain_2U_BD(NFrames_Tx_proc + k2,:) + gain;
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% % 2 Users, 2 Transmit Antennas (cross polarized), Antenna selection
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% %HS = reshape(permute(H_fq(:,:,k1,k2,sched_users),[2 1 3 4 5]),NTx,NRx*length(sched_users));
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% HS = squeeze(HSf(:,1:2,k1,:,sched_users));
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% [CAP_2U2Tx_ZF(k1,NFrames_Tx_proc + k2), gain] = MISO_MMSE(HS,n_p,0);
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% [CAP_2U2Tx_MMSE(k1,NFrames_Tx_proc + k2), gain] = MISO_MMSE(HS,n_p,mu);
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% calculate the full correlation matrix
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% R(k+n*NUser+m*NUser*NTx,k'+n'*NUser+m'*NUser*NTx)
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% k .. User, n .. tx antenna, m .. Rx antenna
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HS = reshape(permute(H_fq(:,:,k1,k2,:),[5 2 3 4 1]),NTx*NRx*NUser,1);
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R = R+HS*HS';
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end
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% gain_4U_AS_MMSE(NFrames_Tx_proc + k2,:) = gain_4U_AS_MMSE(NFrames_Tx_proc + k2,:) / NFreq;
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% gain_4U_AS_ZF(NFrames_Tx_proc + k2,:) = gain_4U_AS_ZF(NFrames_Tx_proc + k2,:) / NFreq;
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gain_2U_AS_MMSE(NFrames_Tx_proc + k2,:) = gain_2U_AS_MMSE(NFrames_Tx_proc + k2,:) / NFreq;
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gain_2U_AS_ZF(NFrames_Tx_proc + k2,:) = gain_2U_AS_ZF(NFrames_Tx_proc + k2,:) / NFreq;
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% gain_4U_MMSE(NFrames_Tx_proc + k2,:) = gain_4U_MMSE(NFrames_Tx_proc + k2,:) / NFreq;
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% gain_4U_ZF(NFrames_Tx_proc + k2,:) = gain_4U_ZF(NFrames_Tx_proc + k2,:) / NFreq;
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gain_2U_MMSE(NFrames_Tx_proc + k2,:) = gain_2U_MMSE(NFrames_Tx_proc + k2,:) / NFreq;
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gain_2U_ZF(NFrames_Tx_proc + k2,:) = gain_2U_ZF(NFrames_Tx_proc + k2,:) / NFreq;
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% gain_2U_BD(NFrames_Tx_proc + k2,:) = gain_2U_BD(NFrames_Tx_proc + k2,:) / NFreq;
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end
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%% calculate and plot the PDP and frequency response over time
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% The function Dprofile requires that size(H)=[N_t,N_tau,N_Tx,N_Rx]
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% but load estimates returns size(H1) = [NRx,NTx,NTau,NFrames]
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disp('[eval_data_MU] PDP Calculation');
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for k=1:NUser
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DProf(k,:) = DProf(k,:) + DProfile(permute(squeeze(H(:,:,:,:,k)),[4 3 2 1]));
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end
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% if any(any(isnan(DProf)))
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% keyboard
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% end
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NFrames_Tx_proc = NFrames_Tx_proc + size(H_fq,4);
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disp(['[eval_data_MU] Chunk = ' num2str(chunks), ', NFrames_Tx_proc = ' num2str(NFrames_Tx_proc) ]);
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end
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% close all files
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for k=1:NUser
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fclose(fid(k));
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end
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% if NFrames_Tx_read < NFrames_Tx
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% CAP_4U_ZF(:,NFrames_Tx_read+1:end) = [];
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% CAP_4U_MMSE(:,NFrames_Tx_read+1:end) = [];
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% CAP_2U_ZF(:,NFrames_Tx_read+1:end) = [];
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% CAP_2U_MMSE(:,NFrames_Tx_read+1:end) = [];
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% end
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% % post processing
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% [Cap_4U_SUTS_f,Cap_4U_SUTS_x] = ecdf(CAP_MU_SUTS(:));
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% [Cap_4U_ZF_f,Cap_4U_ZF_x] = ecdf(CAP_4U_ZF(:));
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% [Cap_4U_MMSE_f,Cap_4U_MMSE_x] = ecdf(CAP_4U_MMSE(:));
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% [Cap_2U_ZF_f,Cap_2U_ZF_x] = ecdf(CAP_2U_ZF(:));
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% [Cap_2U_MMSE_f,Cap_2U_MMSE_x] = ecdf(CAP_2U_MMSE(:));
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DProf = DProf ./ chunks;
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R = R ./ (NFrames_Tx_proc*NFreq);
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R_Tx = R_Tx ./ (NFrames_Tx_proc*NFreq);
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R_Tx_AS = R_Tx_AS ./ (NFrames_Tx_proc*NFreq);
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%% save calcualted data
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filename_mat = fullfile(filepath,sprintf('results_v2_idx_%d.mat',idx));
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if strfind(version,'7.3')
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save(filename_mat,'-V7','CAP*',...
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'gain*',...
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'DProf','R*');
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else
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save(filename_mat,'CAP*',...
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'gain*',...
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'DProf','R*');
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end
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