Connect Samsung Galaxy tab 2 P3100 to a GPS dongle/ Receiver

I have a Samsung galaxy tab 2 p3100. I have an android application which uses its internal GPS to get Latitude, Longitude values. But the lat, long values getting from this tab is not accurate. So I want to connect an external GPS Dongle / receiver to tab and get lat, long values from the external device instead of from tab. I want to know is there any external GPS Dongle / receiver device that supports Galaxy tab2 or any other android device? And if yes, which is the device and how to connect it?