In some aspects, the disclosure is directed to methods and systems for improving noise figure of a wireless receiver. A wireless transmitter up-converts a first signal using a shared clock source in one or more embodiments. The wireless transmitter transmits the up-converted first signal in a first communication protocol and phase noise from the shared clock source in one or more embodiments. A wireless receiver receives, during transmission of the up-converted first signal, a plurality of signals including a second signal in a second communication protocol, a portion of the up-converted first signal and a portion of the phase noise, in one or more embodiments. The wireless receiver down-converts the received plurality of signals using the shared clock source to reduce or cancel the phase noise in one or more embodiments.