diff --git a/include/viterbi_parms.h b/include/viterbi_parms.h
new file mode 100644
index 0000000..c498bf8
--- /dev/null
+++ b/include/viterbi_parms.h
@@ -0,0 +1,9 @@
+
+#ifndef INCLUDED_VITERBI_PARMS_H
+#define INCLUDED_VITERBI_PARMS_H
+#include "utils.h"
+
+extern ofdm_param ofdm;
+extern frame_param frame;
+
+#endif