Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
170 lines
6.4 KiB
Matlab
170 lines
6.4 KiB
Matlab
bit_vec = [4 6 12]
|
|
|
|
% filename_codebook = 'Codebook.mat'; %random codebook
|
|
% load(fullfile('~/Devel/openair1/EMOS/MATLAB/lim_feedback',filename_codebook));
|
|
% filestr = 'RVQ'
|
|
|
|
filename_codebook = sprintf('Codebook_idx_new%d.mat',idx); %random correlated codebook
|
|
if ~exist(filename_codebook,'file')
|
|
disp('[eval_data_MU] Generating Codebook')
|
|
generate_corr_codebook
|
|
else
|
|
load(filename_codebook);
|
|
end
|
|
filestr = 'RVQ_corr'
|
|
|
|
% % grassmanian codebook
|
|
% filename_codebook = sprintf('codebook_%d_%dvec.mat',NTx,pow2(bit_vec));
|
|
% load(fullfile('~/Devel/openair1/EMOS/MATLAB/lim_feedback',filename_codebook));
|
|
% Codebook = repmat(eval(sprintf('codebook_%d_%dvec',NTx,pow2(bit_vec))),[1,1,4]);
|
|
% filestr = 'Grassmanian'
|
|
|
|
timestamp = datestr(now);
|
|
timestamp = strrep(timestamp,' ','_');
|
|
|
|
SNR=10^(SNRdB/10);
|
|
% MMSE regularization factor
|
|
mu = NTx/SNR;
|
|
% noise variance
|
|
n_p=1/SNR;
|
|
|
|
% open all files
|
|
for k=1:NUser
|
|
fid(k) = fopen(filename_emos{avail_users(k),idx},'r');
|
|
if (fid(k)==-1)
|
|
error('[eval_data_MU] Error opening file %s', filename_emos{avail_users(k),idx});
|
|
end
|
|
end
|
|
|
|
|
|
% read the data in chunks of 1000 Frames
|
|
NFrames_max = 1000;
|
|
NFrames_read = zeros(1,NUser);
|
|
NFrames_Tx = max(framestamp_max(:,idx))-min(framestamp_min(:,idx))+1;
|
|
NFreq = 40;
|
|
|
|
chunks = 0;
|
|
NFrames_Tx_read = 0; %Number of Tx frames read from file
|
|
NFrames_Tx_proc = 0; %Number of Tx frames processed (with all crc's positive)
|
|
|
|
align_matrix = false(NUser,NFrames_Tx);
|
|
for u = 1:NUser
|
|
align_matrix(u,est(avail_users(u),idx).framestamp_tx - min(framestamp_min(avail_users,idx)) + 1) = true;
|
|
end
|
|
|
|
crc_matrix = false(NUser,NFrames_Tx);
|
|
for u = 1:NUser
|
|
crc_matrix(u,est(avail_users(u),idx).framestamp_tx - min(framestamp_min(avail_users,idx)) + 1) = ~est(avail_users(u),idx).err_ind;
|
|
end
|
|
|
|
NFrames_pos = sum(all(crc_matrix));
|
|
|
|
%DProf = zeros(NUser, NTx, 64);
|
|
|
|
%CAP_4U_ZF_CVQ = zeros(NFreq,NFrames_pos,length(bit_vec));
|
|
%CAP_4U_MMSE_CVQ = zeros(NFreq,NFrames_pos,length(bit_vec));
|
|
CAP_4U_ZF_RVQ = zeros(NFreq,NFrames_pos,length(bit_vec));
|
|
CAP_4U_MMSE_RVQ = zeros(NFreq,NFrames_pos,length(bit_vec));
|
|
CAP_SU_CVQ = zeros(NFreq,NFrames_pos,length(bit_vec),NUser);
|
|
|
|
Codebook_ind = zeros(NFreq,NFrames_pos,length(bit_vec),NUser);
|
|
|
|
%while any(NFrames_read < NFrames(:,idx).')
|
|
%fk 30.1.2008: changed the following two line since it produced an endless loop
|
|
while any(NFrames_read < sum(align_matrix,2).')
|
|
|
|
%Tx_frames = (NFrames_Tx_read+1) : min(NFrames_Tx_read + NFrames_max, NFrames_Tx);
|
|
Tx_frames = (NFrames_Tx_read+1) : min(NFrames_Tx_read + NFrames_max,size(align_matrix,2));
|
|
if IFversion>=2
|
|
[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);
|
|
else
|
|
[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);
|
|
end
|
|
if isempty(H_fq)
|
|
warning('[eval_data_MU] No data read! Terminating loop.');
|
|
break
|
|
end
|
|
NFrames_Tx_read = NFrames_Tx_read + size(H_fq,4);
|
|
|
|
%use only measurements where all users have positive CRC
|
|
H = H(:,:,:,all(crc_matrix(:,Tx_frames)),:);
|
|
H_fq = H_fq(:,:,:,all(crc_matrix(:,Tx_frames)),:);
|
|
|
|
chunks = chunks + 1;
|
|
disp(['[eval_data_MU] Chunk = ' num2str(chunks) ', NFrames_read = ' num2str(NFrames_read) ', NFrames_Tx_read = ' num2str(NFrames_Tx_read) ]);
|
|
|
|
% normalize H per user
|
|
% the mean squared Frobenius norm has been precomputed in est(k,idx).Hnorm
|
|
% in order to get E(|h_{i,j,k}|^2) = 1, we need
|
|
% size(H_fq) = [NRx,NTx,NFreq,NFrames,Nuser]
|
|
for k=1:NUser
|
|
H(:,:,:,:,k) = H(:,:,:,:,k)*sqrt(NTx*NRx)/sqrt(mean(est(sched_users(k),idx).Hnorm));
|
|
H_fq(:,:,:,:,k) = H_fq(:,:,:,:,k)*sqrt(NTx*NRx)/sqrt(mean(est(sched_users(k),idx).Hnorm));
|
|
end
|
|
|
|
disp('[eval_data_MU] Calculating SDMA capacities');
|
|
for k2=1:size(H_fq,4)
|
|
%[HSf,antenna_index] = antenna_selection(H_fq(:,:,:,k2,:));
|
|
for k1=1:size(H_fq,3)
|
|
HS = squeeze(H_fq(1,:,k1,k2,:));
|
|
Codebook_ind(k1,NFrames_Tx_proc + k2,:,:) = get_codebook_idx(HS,Codebook(:,1:pow2(max(bit_vec)),1:NUser),bit_vec);
|
|
for b = 1:length(bit_vec)
|
|
|
|
% [Hq, Codebook_ind(k1,NFrames_Tx_proc + k2,b,:)] = quantize_H(HS,bit_vec(b));
|
|
%
|
|
% [CAP_4U_MMSE_CVQ(k1,NFrames_Tx_proc + k2,b)] = MISO_CVQ(HS.',Hq.',n_p,mu);
|
|
% [CAP_4U_ZF_CVQ(k1,NFrames_Tx_proc + k2,b)] = MISO_CVQ(HS.',Hq.',n_p,0);
|
|
|
|
Hq = zeros(NTx,NUser);
|
|
for k=1:NUser
|
|
Hq(:,k) = Codebook(:,Codebook_ind(k1,NFrames_Tx_proc + k2,b,k),k);
|
|
% Hq has to have the same amplitude as H
|
|
Hq(:,k) = Hq(:,k).*norm(HS(:,k));
|
|
CAP_SU_CVQ(k1,NFrames_Tx_proc + k2,b,k) = log2(1+SNR^2*abs(Hq(:,k)'*HS(:,k))^2);
|
|
end
|
|
|
|
[CAP_4U_MMSE_RVQ(k1,NFrames_Tx_proc + k2,b)] = MISO_RVQ(HS.',Hq.',n_p,mu);
|
|
[CAP_4U_ZF_RVQ(k1,NFrames_Tx_proc + k2,b)] = MISO_RVQ(HS.',Hq.',n_p,0);
|
|
end
|
|
end
|
|
end
|
|
|
|
% %% calculate and plot the PDP and frequency response over time
|
|
% % The function Dprofile requires that size(H)=[N_t,N_tau,N_Tx,N_Rx]
|
|
% % but load estimates returns size(H1) = [NRx,NTx,NTau,NFrames]
|
|
% disp('[eval_data_MU] PDP Calculation');
|
|
% for k=1:NUser
|
|
% for l=1:NTx
|
|
% DProf(k,l,:) = DProf(k,l,:) + reshape(DProfile(squeeze(permute(H(:,l,:,:,k),[4 3 2 1 5]))),1,1,[]);
|
|
% end
|
|
% end
|
|
|
|
|
|
NFrames_Tx_proc = NFrames_Tx_proc + size(H_fq,4);
|
|
disp(['[eval_data_MU] Chunk = ' num2str(chunks), ', NFrames_Tx_proc = ' num2str(NFrames_Tx_proc) ]);
|
|
% sendmail('kaltenbe@eurecom.fr',['[eval_data_MU] Chunk = ' num2str(chunks), ', NFrames_Tx_proc = ' num2str(NFrames_Tx_proc) ],'');
|
|
|
|
%% save calcualted data
|
|
filename_mat = fullfile(filepath,sprintf('results_%s_%dbit_SNR_%d_idx_%d_%s.mat',filestr,bit_vec(1),SNRdB,idx,timestamp));
|
|
if strfind(version,'7.3')
|
|
save(filename_mat,'-V7','CAP*','bit_vec','Codebook_ind');
|
|
else
|
|
save(filename_mat,'CAP*','bit_vec','Codebook_ind');
|
|
end
|
|
|
|
end
|
|
|
|
% close all files
|
|
for k=1:NUser
|
|
fclose(fid(k));
|
|
end
|
|
|
|
%DProf = DProf ./ chunks;
|
|
|
|
% %% save calcualted data
|
|
% filename_mat = fullfile(filepath,sprintf('results_RVQ_corr_SNR_%d_idx_%d.mat',SNRdB,idx));
|
|
% if strfind(version,'7.3')
|
|
% save(filename_mat,'-V7','CAP*','bit_vec','Codebook_ind');
|
|
% else
|
|
% save(filename_mat,'CAP*','bit_vec','Codebook_ind');
|
|
% end |