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IEEE Transactions on Wireless Communications > 2012 > 11 > 12 > 4362 - 4371
IEEE Transactions on Signal Processing > 2010 > 58 > 7 > 3828 - 3841
IEEE Communications Letters > 2009 > 13 > 4 > 212 - 214
IEEE Transactions on Wireless Communications > 2008 > 7 > 12-1 > 4854 - 4858