Nearest Neighbour Decoding and Pilot-Aided Channel Estimation in Stationary Gaussian Flat-Fading Channels

——We study the information rates of non-coherent, stationary, Gaussian, multiple-input multiple-output (MIMO) at-fading channels that are achievable with nearest neighbour decoding and pilot-aided channel estimation. In particular, we analyse the behaviour of these achievable rates in the limit as the signal-to-noise ratio (SNR) tends to innity. We demonstrate that nearest neighbour decoding and pilot-aided channel estimation achieves the capacity pre-log——which is dened as the limiting ratio of the capacity to the logarithm of SNR as the SNR tends to innity——of non-coherent multiple-input single-output (MISO) at-fading channels, and it achieves the best so far known lower bound on the capacity pre-log of non-coherent MIMO at-fading channels.

• Type: Journal
• Year: 2011
• Where: CORR
• Authors: A. Taufiq Asyhari, Tobias Koch, Albert Guillen i Fabregas
• Keywords: Achievable Rates, CORR 2011, Education, Nearest Neighbour Decoding, Pilot-aided Channel Estimation