Estimation of transmit‐antenna number with different space–frequency transmission schemes for MIMO‐OFDM systems. Issue 5 (1st March 2018)

• Record Type: Journal Article
• Authors: Li, Tao; Li, Yongzhao; Gao, Mingjun; Zhang, Hailin
• Is Part Of: Electronics letters. Volume 54:Issue 5(2018)
• Page Start: 325
• Page End: 326
• Publication Date: 2018-03-01
• Subjects: transmitting antennas -- antenna arrays -- MIMO communication -- OFDM modulation -- covariance matrices -- statistical analysis -- eigenvalues and eigenfunctions -- decision theory; transmit‐antenna number estimation -- space–frequency transmission scheme -- MIMO‐OFDM systems -- hypothesis testing based algorithm -- multiple input multiple output orthogonal frequency division multiplexing systems -- received sample covariance matrices ranks -- adjacent subcarriers -- largest noise eigenvalue statistical property -- decision mechanism; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2017.3630
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A hypothesis testing based algorithm is proposed to estimate the transmit‐antenna number with different space–frequency transmission schemes for multiple‐input multiple‐output orthogonal frequency division multiplexing (MIMO‐OFDM) systems. The ranks of received sample covariance matrices composed by every two adjacent subcarriers can be estimated by utilising the statistical property of the largest noise eigenvalue. With a series of the estimated values of the ranks, the number of transmit antennas is determined by a decision mechanism, which is designed based on the frequencies of the rank values. Simulations demonstrate that the proposed algorithm performs well without the prior knowledge of the space–frequency transmission scheme.