IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications > 2007 > 6 > 2 > 609 - 616
IEEE Transactions on Wireless Communications > 2008 > 7 > 12-2 > 5263 - 5267
IEEE Transactions on Wireless Communications > 2008 > 7 > 12-2 > 5257 - 5262
IEEE Transactions on Wireless Communications > 2009 > 8 > 7 > 3780 - 3788