Matlab R2016b

Hi I need to install matlab R2016b so it is compatible with CVX. How do I buy one? mathworks seems to offer only the latest license (R2017A). thanks

[Oguzhan]

Yes you can install

Answer 1

[KALYAN ACHARJYA]

Yes, Matlab R2016b is compatible with CVX. You can get it from your lab instructor(licensed).

Answer 2

[ANN MARIYA PETER ANN MARIYA PETER]

t=0:0.1:10

alpha=2

ramp=alpha*t % Your input signal

model=tf(1,[1 20 3]); % Your transfer function

[y,t]=lsim(model,ramp,t)

plot(t,y)

Answer 3

[Niguse]

clc;

clear;

close all;

%% Parameters

N = 64; % Number of OFDM subcarriers

cp_len = 16; % Cyclic prefix length

num_symbols = 1000; % Number of OFDM symbols

SNR_dB = 0:2:30; % SNR range

mod_schemes = {'BPSK', 'DPSK', 'QPSK'}; % Modulation types

% PLC multipath channel model

plc_channel = [0.9 0.5 0.3];

% Colored noise filter (1st order lowpass)

b_noise = [1 -0.5];

a_noise = [1];

%% Initialize BER result

ber = zeros(length(mod_schemes), length(SNR_dB));

%% Main Simulation

for m = 1:length(mod_schemes)

mod_type = mod_schemes{m};

for idx = 1:length(SNR_dB)

snr = SNR_dB(idx);

total_err = 0;

total_bits = 0;

for sym = 1:num_symbols

%% Data Generation and Modulation

switch mod_type

case 'BPSK'

bits = randi([0 1], N, 1);

symbols = 2*bits - 1; % BPSK: 0→-1, 1→+1

case 'DPSK'

bits = randi([0 1], N, 1);

symbols = dpskmod(bits, 2); % DPSK modulation

case 'QPSK'

bits = randi([0 1], 2*N, 1);

symbols = qammod(bits, 4, 'InputType', 'bit', 'UnitAveragePower', true);

end

%% OFDM Modulation (IFFT + Cyclic Prefix)

ofdm_sym = ifft(symbols, N);

tx_signal = [ofdm_sym(end-cp_len+1:end); ofdm_sym]; % Add cyclic prefix

%% Channel with Colored Noise

chan_out = conv(tx_signal, plc_channel, 'same');

white_noise = randn(size(chan_out));

colored_noise = filter(b_noise, a_noise, white_noise);

noise_power = var(chan_out) / (10^(snr/10));

colored_noise = sqrt(noise_power) * colored_noise;

rx_signal = chan_out + colored_noise;

%% Receiver

rx_no_cp = rx_signal(cp_len+1:cp_len+N); % Remove CP

rx_fft = fft(rx_no_cp, N); % FFT

%% Demodulation

switch mod_type

case 'BPSK'

rx_bits = real(rx_fft) > 0;

total_err = total_err + sum(bits ~= rx_bits);

case 'DPSK'

rx_bits = dpskdemod(rx_fft, 2); % DPSK demodulation

total_err = total_err + sum(bits ~= rx_bits);

case 'QPSK'

rx_bits = qamdemod(rx_fft, 4, 'OutputType', 'bit', 'UnitAveragePower', true);

total_err = total_err + sum(bits ~= rx_bits);

end

% Bit count

switch mod_type

case 'QPSK'

total_bits = total_bits + length(bits);

otherwise

total_bits = total_bits + N;

end

end

ber(m, idx) = total_err / total_bits;

end

end

%% Plotting

figure;

semilogy(SNR_dB, ber(1,:), 'r-o', 'LineWidth', 2); hold on;

semilogy(SNR_dB, ber(2,:), 'b-s', 'LineWidth', 2);

semilogy(SNR_dB, ber(3,:), 'g-^', 'LineWidth', 2);

grid on;

xlabel('SNR (dB)');

ylabel('Bit Error Rate (BER)');

legend('BPSK', 'DPSK', 'QPSK', 'Location', 'southwest');

title('Performance Comparison of OFDM over PLC Channel with Colored Noise');

%% Save the Figure

saveas(gcf, 'OFDM_BER_PLC_Colored_Noise.png'); % PNG format

saveas(gcf, 'OFDM_BER_PLC_Colored_Noise.fig'); % MATLAB figure format

give me the figure for thiscode