Efficient Time-Domain Phase Noise Mitigation in cm-Wave Wireless Communications
Syrjälä, Ville; Levanen, Toni; Lähetkangas, Eeva; Valkama, Mikko (2016-12-07)
Syrjälä, Ville
Levanen, Toni
Lähetkangas, Eeva
Valkama, Mikko
IEEE
07.12.2016
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tuni-202003092612
https://urn.fi/URN:NBN:fi:tuni-202003092612
Kuvaus
Peer reviewed
Tiivistelmä
The topic of this paper is low-complexity yet high-precision phase-noise mitigation in a realistic cm-wave radio link. The proposed algorithm for phase-noise induced intercarrier interference mitigation works in time domain. We propose a filtering solution that is computationally very simple to implement on silicon. Noise from initial phase-noise estimate is removed with cumulative sum filtering instead of a very high order complex-tap filter. The performance of the proposed algorithm is evaluated in realistic ITU-R Urban Microcell Non-Line-of-Sight channel as well as in white Gaussian noise channel, and with state-of-the-art phase-locked-loop oscillator generated phase noise. The obtained results show that highly-efficient phase-noise mitigation can be obtained using the proposed approach. For the example 5G case, the algorithm suppresses the phase noise so that the bit-error-rate performance is near the case without phase noise.
Kokoelmat
- TUNICRIS-julkaisut [16740]