IEEE Communications Letters
IEEE Communications Letters > 2017 > 21 > 11 > 2512 - 2515
IEEE Communications Letters > 2017 > 21 > 11 > 2368 - 2371
IEEE Communications Letters > 2017 > 21 > 11 > 2512 - 2515
IEEE Communications Letters > 2017 > 21 > 11 > 2368 - 2371