Alternative for inline DTD in schema!

Following example shows inline DTD for an XML document.
Using XML schema, can similar document be generated?

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE Ack [
        <!ELEMENT Ack EMPTY>
        <!ATTLIST Ack Status CDATA #REQUIRED
			    ServerName CDATA #REQUIRED>
]>
<Ack ServerName="prasad" Status="Received"/>

Thanks,
Prasad GSK