?url_ver=Z39.88-2004&rft_id=10.1109%2FICIAS.2007.4658435&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Khan&rft.aufirst=M.A.&rft.au=Khan%2C+M.A.&rft.date=2007&rft.isbn=1424413559%3B+9781424413553&rft.title=On+secure+OFDM+system%3A+Chaos+based+constellation+scrambling&rft.genre=proceeding