I am working on a research grant proposal and the funding agency requires us to turn in a white paper before the actual proposal. I have no clue how a research grant white paper should look like. I tried googling and searching in the university library, but could not find anything similar. Will somebody be able to give me a link to a research grant white paper, something which I can look at and learn the format? (my field is computer science)
Based on a little Googling, his white paper sounds like a preproposal. It is likely a short overview over your research project: the problem you are working on, your approach to solving it, how much it will cost, and what you and/or the agency will get out of it. Consider this white paper an outline of your full proposal.
Many agencies will ask for these if they expect a particular program or funding opportunity will have a high response or if the purpose of the program is to provide a single large award to one project. The prepreposals are used to narrow the field before they ask for full proposals from a smaller set of submitters.
I have not been successful at finding examples, since proposals and affiliated documents are almost never released unless they are funded. However, I have found some tips for preparing white papers from Rochester Institute of Technology and Purdue.