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Journal of Communications and Networks > 2015 > 17 > 4 > 362 - 369
IEEE Communications Letters > 2015 > 19 > 8 > 1442 - 1445
IEEE Transactions on Communications > 2015 > 63 > 8 > 2996 - 3007
IEEE Communications Letters > 2015 > 19 > 8 > 1402 - 1405