A regularization approach to MSE analysis of OFDM under phase noise

作者：Kaksi Omer^*; Ozdemir Ozgur; Hamila Ridha; Al Dhahir Naofal

来源：AEU-International Journal of Electronics and Communications, 2018, 83: 303-308.

DOI：10.1016/j.aeue.2017.09.005

• OFDM
• Phase noise
• NMSE

Orthogonal frequency division multiplexing (OFDM) is widely used in broadband wireless communications systems because of its high resilience to frequency-selective fading and its low implementation complexity. Phase noise (PN) is one of the major RF impairments in direct-conversion wireless transceivers. In this paper, we analyze the impact of PN on an OFDM transceiver. We derive an exact normalized mean square error (NMSE) expression under receive-side PN and examine asymptotic and special cases. An optimized regularization parameter for an MMSE equalizer design is derived and shown to result in appreciable NMSE reduction.

• 出版日期2018