Impact of phase noise on MIMO channel measurement accuracy


Daniel S. Baum and Helmut Bölcskei


Proc. of IEEE Vehicular Technology Conference (VTC) Fall, Los Angeles, CA, USA, Vol. 3, pp. 1614-1618, Sept. 2004, (invited paper).

DOI: 10.1109/VETECF.2004.1400307

[BibTeX, LaTeX, and HTML Reference]


A widespread design for multiple-input multiple-output (MIMO) radio channel measurement devices (sounders) is based on time-division multiplexed switching of a single transmit/receive radio frequency (RF) chain into the elements of a transmit/receive antenna array. While being cost-effective, such a solution can cause significant measurement errors due to phase noise in the local oscillators. In this paper, we analyze the impact of phase noise on MIMO channel measurement accuracy and show that it can lead to overestimation of channel capacity of up to 100% in practice. Furthermore, we demonstrate that the impact of phase noise is most pronounced if the physical channel has low rank (typical for line-of-sight or low scattering scenarios). The extreme case of a rank-1 physical channel is analyzed in detail.


Phase noise, MIMO, channel measurements


Corrections to this paper compared to the version published in the proceedings: approximate equivalence in (7), real Gaussian distribution of vec(Phi) in Prop. 4 and 5, update of [1].

Download this document:


Copyright Notice: © 2004 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.