How to send data from matlab R2013a to arduino uno and then send to Xbee pro s1?

i am working on a project where i need to send some data from a PC to another, and I am trying to do it by Matlab-Arduino-Xbee. I have two ends. The receiving end is working as i have checked the receiving while sending from XCTU, but I cannot send data from matlab to arduino and then to xbee. the Matlab code is-

s = serial('COM7');
s.BaudRate=19200;
set(s,'Parity','none');
set(s, 'terminator', 'LF');
set(s,'Timeout',1);
fopen(s)
try
    i=1;
while i<=1000 
   data(i) = fprintf(s,'100') ;
   i=i+1;
end
catch me
    fclose(s)
end

and the arduino code is -

#include <SoftwareSerial.h>
SoftwareSerial mySerial(10, 11); // RX, TX
void setup() {
  Serial.begin(19200);
  while (!Serial) {
    ;   
  }
  mySerial.begin(19200);
}
void loop() { 
  if (Serial.available()) {
    mySerial.println(Serial.readString());   
    }
}

can anyone help me on my mistakes and suggest me the right way to do it?