On the Compensation of RF Impairments with Multiple Antennas in SIMO OFDM systems

Pierre-François Morlat (1) , Jose-Cruz Nunez-Perez (2) , Guillaume Villemaud (1) , Jacques Verdier (3) , Jean-Marie Gorce (1)

1 ARES - Architectures of networks of services
2 INL - DE - INL - Dispositifs Electroniques
3 INL - CSH - INL - Conception de Systèmes Hétérogènes

This paper provides an analysis of the impact of radio frequency (RF) front end impairments (I/Q gain and phase imbalance, phase noise, non-linear distortion and direct current offset) on the performance of a single input multiple output orthogonal frequency division multiplexing (SIMO OFDM) receiver. We developed a new estimation/compensation scheme to jointly compensate for the effect of multipath and RF nonidealities on baseband signals in the special case of Zero-IF receivers. Some first results illustrating this approach are presented for a 4 antenna 802.11g receiver with the SMI algorithm and with or without IQ imbalance, as well as BER curves for different phase noise models.

Domains: Networking and Internet Architecture [cs.NI]

Pierre-François Morlat, Jose-Cruz Nunez-Perez, Guillaume Villemaud, Jacques Verdier, Jean-Marie Gorce. On the Compensation of RF Impairments with Multiple Antennas in SIMO OFDM systems. VTC Fall, IEEE, Sep 2006, Montréal, Canada. ⟨10.1109/VTCF.2006.109⟩. ⟨inria-00436695⟩