function?initPC（NKEcN0designSNRdBsilentflag）?%designSNRdB?optional
%
%?This?prepares?the?collection?of?all?implicit?parameters?related?to
%?polar?coding?&?SC?decoding;?to?be?used?by?all?subsequent?routines?later.
%???（Including?the?memory?resources?to?be?used?by?the?polar?SC?decoding）
%
%????????Usage:?initPC（NKEcN0designSNRdB）
%?
%????????????N??-??Blocklength‘）;
%????????????K??-??Message?length?（Rate?=?K/N）‘）;
%????????????Ec?-??the?BPSK?symbol?energy?（linear?scale）;
%????????????N0?（optional）?-??Noise?power?spectral?density?（default?N0/2?=?1）?
%???????????????????????????????（used?for?Monte-Carlo?simulate?etc）‘）;
%????????????designSNRdB?（optional）?-?the?SNR?at?which?the?polar?code?construction?（PCC）?should?be?performed‘）;
%??????????????????????????????????????（As?far?as?PCC?is?concerned?SNR=Ec/N0?by?definition?&?defaults?to?“0dB“）‘）;
%?
%????????????silentflag?（optional）?-?whether?to?print?the?last?result?or?not
%???????????????????????????????????????（defaults?to?0）
%?
%????????Note:?This?routine?must?be?called?before?we?use?any?other?utility?around?here.\n\n‘）;
%?

if?nargin==3?%Normalize?noise-power-spectral-density?when?not?supplied:?---?N0/2=1?（default）
????N0=2;
????designSNRdB=0;
????silentflag=0;
elseif?nargin==4?
????designSNRdB=0;
????silentflag=0;
elseif?nargin==5
????silentflag=0;
elseif?（nargin<3?||?nargin>6）
????fprintf（‘\n???Usage:?initPC（NKEcN0designSNRdB）\n‘）;
????fprintf（‘\n???????N??-??Blocklength‘）;
????fprintf（‘\n???????K??-??Message?length?（Rate?=?K/N）‘）;
????fprintf（‘\n???????Ec?-??the?BPSK?symbol?energy‘）;
????fprintf（‘\n???????N0?（optional）?-??Noise?power?spectral?density?（default?N0/2?=?1）‘）;
????fprintf（‘\n???????????????????????????（used?for?Monte-Carlo?simulate?etc）‘）;
????fprintf（‘\n???????designSNRdB?（optional）?-?the?SNR?at?which?the?polar?code?should?be?constructed‘）;
????fprintf（‘\n?????????????????????????????????（Here?SNR=Ec/N0?-?by?definition?for?a?PCC?defaults?to?“0dB“）‘）;
????fprintf（‘\n\n???Note:?This?routine?must?be?called?before?we?use?any?other?utility?around?here.\n\n‘）;
????return;
end

addpath（genpath（‘./functions‘））;?%All?helping?routines.

global?PCparams;

PCparams?=?struct（‘N‘?N?...
??????????????????‘K‘?K?...
??????????????????‘n‘?0?...
??????????????????‘FZlookup‘?zeros（N1）?...
??????????????????‘Ec‘?Ec?...
??????????????????‘N0‘?N0?...????????%N0/2?=1?normalization
??????????????????‘LLR‘?zeros（12*N-1）?...
??????????????????‘BITS‘?zeros（2N-1）?...
??????????????????‘designSNRdB‘?designSNRdB）;

PCparams.n?=?log2（N）;
PCparams.FZlookup?=?pcc（NKdesignSNRdB）;?%polar?code?construction?at?the?given?design-SNR?（default?0dB）

if（~silentflag）
fprintf（‘\n?All?polar?coding?parameters/resources?initialized.?（in?a?structure?-?“PCparams“）?\n‘）;
disp（PCparams）;
end

end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-10-28?01:04??polarcoding_matlab\
?????文件????????2086??2015-10-28?01:04??polarcoding_matlab\Sample?session.txt
?????文件???????25634??2015-10-28?01:02??polarcoding_matlab\diary
?????文件????????1500??2015-10-27?13:01??polarcoding_matlab\systematic_pencode.m
?????文件????????3776??2015-10-28?01:02??polarcoding_matlab\plotPC.m
?????文件????????3776??2015-10-28?01:02??polarcoding_matlab\plotPC_systematic.m
?????文件????????2249??2015-10-22?04:05??polarcoding_matlab\systematic_pdecode.m
?????文件????????3601??2015-10-13?08:19??polarcoding_matlab\pdecode.m
?????文件????????1025??2015-01-28?01:21??polarcoding_matlab\pencode.m
?????文件????????2801??2015-10-28?00:15??polarcoding_matlab\initPC.m
?????目錄???????????0??2015-10-27?12:56??polarcoding_matlab\functions\
?????文件?????????926??2015-10-27?12:58??polarcoding_matlab\functions\pcc.m
?????文件????????1281??2015-10-27?12:52??polarcoding_matlab\functions\test_systematic.m
?????文件?????????393??2015-10-22?03:09??polarcoding_matlab\functions\spencode_BPSK_AWGN.m
?????文件?????????381??2015-10-22?03:04??polarcoding_matlab\functions\pencode_BPSK_AWGN.m
?????文件?????????413??2015-10-24?00:53??polarcoding_matlab\functions\bitreversed.m
?????文件?????????363??2015-01-28?01:21??polarcoding_matlab\functions\setdesignSNRdB.m
?????文件?????????102??2015-01-28?01:21??polarcoding_matlab\functions\logdomain_diff.m
?????文件?????????106??2015-01-28?01:20??polarcoding_matlab\functions\logdomain_sum.m
?????文件?????????576??2015-10-22?01:19??polarcoding_matlab\functions\FN_transform.m
?????文件?????????177??2015-01-28?01:20??polarcoding_matlab\functions\upperconv.m
?????文件????????1198??2015-01-29?07:08??polarcoding_matlab\functions\updateBITS.m
?????文件?????????304??2015-01-28?01:20??polarcoding_matlab\functions\lowerconv.m
?????文件?????????331??2015-10-22?03:02??polarcoding_matlab\functions\BPSK_AWGN.m
?????文件????????1298??2015-01-29?06:17??polarcoding_matlab\functions\updateLLR.m
?????文件?????????518??2015-10-13?11:30??polarcoding_matlab\functions\EncoderC.m
?????文件?????????646??2015-10-13?11:14??polarcoding_matlab\functions\EncoderB.m
?????文件?????????719??2015-10-13?11:54??polarcoding_matlab\functions\EncoderA.m
?????文件?????????248??2015-10-22?02:57??polarcoding_matlab\functions\BPSK.m