Analytical Performance of MIMO-SVD Systems in Ricean Fading Channels with Channel Estimation Error and Feedback Delay

• Published in: IEEE transactions on wireless communications Vol. 7; no. 4; pp. 1315 - 1325
• Main Authors: Au, E.K.S., Shi Jin, McKay, M.R., Wai Ho Mow, Xiqi Gao, Collings, I.B.
• Format: Journal Article
• Language: English
• Published: Piscataway, NJ IEEE 01.04.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Antennas; Applied sciences; Bit error rate; Channel estimation; Channels; Delay; Delay estimation; Error analysis; Errors; Exact sciences and technology; Fading; Feedback; Mathematical analysis; MIMO; Outages; Performance analysis; Radiocommunications; Receiving antennas; Signal to noise ratio; Studies; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Fading channels; Performance evaluation; MIMO system; Estimation error; Parameter estimation; Outage; Bit error rate; Diversity; Eigenvalue; Rice fading; multiple-input multiple-output; feedback delay; Power allocation; Transmitting antenna; Channel estimation; Modulation; Delay time; Channel estimation error; Signal to interference plus noise ratio; Receiving antenna; Singular value decomposition
• ISSN: 1536-1276; 1558-2248
• DOI: 10.1109/TWC.2008.060912

This paper analyzes bit error rate (BER) and outage probability of singular value decomposition-based multiple-input multiple-output systems with channel estimation error and feedback delay over uncorrelated Ricean fading channels. By utilizing marginal unordered and ordered eigenvalue distributions of complex noncentral Wishart matrices, we derive exact closed-form expressions on the average system performance and high signal- to-interference-plus-noise ratio (SINR) approximations on the individual eigen-subchannels, respectively, under the assumption of equal power allocation. Our expressions apply for various modulation formats and arbitrary numbers of transmit and receive antennas. Our results show that in low-to-moderate SINR regimes, both the BER and the outage probability increase with channel estimation error, feedback delay and the Ricean K-factor at a polynomial rate that is inversely proportional to the difference between the numbers of transmit and receive antennas. We also show that, with channel estimation error and feedback delay, the diversity orders of the BER and outage probability are zero and an irreducible error floor exists at high SINR.