message to binary, symbol and bits

I have following part of code. I want to send text message using BPSK and FHSS and receive and retrieve text. I need to calculate symbol rate, bit rate, hop rate, symbols per hop, hop duration, bpsk bandwidth, spreading bandwidth etc However its confusing which parameters are actually show symbol, bit, hop etc what is N here frequency, symbol, bits...what is T, dwell time, symbol duration etc..what is binarMessage, s, and signal.

    message = 'mytextmsg'; %input('Enter the message word: ', 's');
% Convert message to binary
binaryMessage = reshape(2bin(message, 8).', 1, 8 * length(message));

Invalid expression. Check for missing multiplication operator, missing or unbalanced delimiters, or other syntax error. To construct matrices, use brackets instead of parentheses.

% Ensure the binary message has length N (pad with zeros or truncate if necessary)
N = 32;
signal = [];  
carrier = [];
T = 180;
t = 0:2*pi/(T-1):2*pi;  % Creating 180 samples for one cosine 
binaryMessage = binaryMessage(1:N);
% Convert binary message to numeric values (0 and 1)
s = double(binaryMessage) - '0';
% Display the binary message
disp('Binary Message:');
disp(binaryMessage);
% Plot the binary message
subplot(3,1,1);
stem(1:length(s), s); % Use length(s) as the x-axis to match the length of s
set(gca,'XTick',1:N);
title('Binary information');

% Generation of bit pattern/bit stream (Polar NRZ type)
for k = 1:N
    if s(1, k) == 0
        sig = -ones(1, T); % T no. of MINUS ONES for bit 0
    else
        sig = ones(1, T);  % T no. of ONES for bit 1
    end
    c = cos(t);   
    carrier = [carrier c];
    signal = [signal sig];
end
bpsk_sig = signal .* carrier;  % Modulating the signal
plot(1:N*T, bpsk_sig);

[Walter Roberson]

    message = 'mytextmsg'; %input('Enter the message word: ', 's');
% Convert message to binary
binaryMessage = reshape(dec2bin(message, 8).', 1, 8 * length(message));
% Ensure the binary message has length N (pad with zeros or truncate if necessary)
N = 32;
signal = [];  
carrier = [];
T = 180;
t = 0:2*pi/(T-1):2*pi;  % Creating 180 samples for one cosine 
binaryMessage = binaryMessage(1:N);
% Convert binary message to numeric values (0 and 1)
s = double(binaryMessage) - '0';
% Display the binary message
disp('Binary Message:');

Binary Message:

disp(binaryMessage);

01101101011110010111010001100101

% Plot the binary message
subplot(3,1,1);
stem(1:length(s), s); % Use length(s) as the x-axis to match the length of s
set(gca,'XTick',1:N);
title('Binary information');

% Generation of bit pattern/bit stream (Polar NRZ type)
for k = 1:N
    if s(1, k) == 0
        sig = -ones(1, T); % T no. of MINUS ONES for bit 0
    else
        sig = ones(1, T);  % T no. of ONES for bit 1
    end
    c = cos(t);   
    carrier = [carrier c];
    signal = [signal sig];
end
bpsk_sig = signal .* carrier;  % Modulating the signal
plot(1:N*T, bpsk_sig);

[Walter Roberson]

% Ensure the binary message has length N (pad with zeros or truncate if necessary)
N = 32;
%...
binaryMessage = binaryMessage(1:N);

I doubt that is correct. I suspect that you want to create it as a multiple of N rather than being exactly N. More like

modN = mod(length(binaryMessage),N);
if modN ~= 0
    binaryMessage = [binaryMessage, repmat('0', N - modN)];
end