global_parameter.txt

WLAN仿真－系统参数配置 系统参数主要分为2类： 一类是可以配置的

% packet length should be integer times of 48 data subcarrier.
% 6 is the ofdm data symbol number in one packet
data_sym_num = 6;
PacketLength=48*data_sym_num;
% modulation type: 4 is QPSK, 16 is 16QAM, 256 and so on
M_type=4; 
% 52 = 48 data subcarriers 4 pilot subcarriers
NumSubc = 52; 
NumDataSubc = 48;
NumPilotSubc = 4;
% 48 data subcarriers position
DataSubcPatt = [1:5 7:19 21:26 27:32 34:46 48:52]';  
% 4 pilot subcarriers position
PilotSubcPatt = [6 20 33 47]'; 
% used subcarriers
UsedSubcPatt = [39:64 2:27];
PilotScramble = [1 1 1 1 -1 -1 -1 1 -1 -1 -1 -1 1 1 -1 1 -1 -1 1 1 -1 ...
    1 1 -1 1 1 1 1 1 1 -1 1 1 1 -1 1 1 -1 -1 1 1 1 -1 1 -1 -1 -1 1 -1 1 ...
    -1 -1 1 -1 -1 1 1 1 1 1 -1 -1 1 1 -1 -1 1 -1 1 -1 1 1 -1 -1 -1 1 1 ...
    -1 -1 -1 -1 1 -1 -1 1 -1 1 1 1 1 -1 1 -1 1 -1 1 -1 -1 -1 -1 -1 1 ...
    -1 1 1 -1 1 -1 1 1 1 -1 -1 1 -1 -1 -1 1 1 1 -1 -1 -1 -1 -1 -1 -1];
% 802.11a.page-22.equation-24
PilotSubcSymbols=[1;1;1;-1];
% short preamble (% 802.11a.page-12.equation-6)
ShortTrainingSymbols= sqrt(13/6)*[0 0 1 j 0 0 0 -1-j 0 0 0 1 j...
    0 0 0 -1-j 0 0 0 -1-j 0 0 0 1 j 0 0 0 0 0 0 -1-j 0 0 0 -1-j 0 0 0 ...
      1 j 0 0 0 1 j 0 0 0 1 j 0 0 0 1 j 0 0];
 % long preamble (% 802.11a.page-13.equation-8)
LongTrainingSymbols = [1 1 -1 -1 1   1 -1 1 -1 1   1 1 1 1 1  ...
    -1 -1 1 1 -1   1 -1 1 1 1   1  1 -1 -1 1   1 -1 1 -1 1 ...
    -1 -1 -1 -1 -1   1 1 -1 -1 1   -1 1 -1 1 1   1 1];
% window
trs_win = [0.5 ones(1,159) 0.5];  % length 161
data_win = [0.5 ones(1,79) 0.5].'; % length 81

% set the sim parameter you want
Packet_num=1;
SNR = 10;
% channel_type=1: AWGN channel
% channel_type=2: Multipath channel for drlu email
% channel_type=3: simple Multipath channel
channel_type = 1;
% channel_estimate=1: do perfect channel estimation
% channel_estimate=0: don't have channel estimation
channel_estimate=1;
% sync_perfect=1: do perfect sync;
% sync_perfect=0: do the real sync;
sync_perfect=1;

fs = 80*10e6;       % 80MHz
fc = 10*10e6;       % 10MHz