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Channel estimation and tracking for closed loop EO-STBC with differentially encoding feedback

Hussin, Mohammed Nuri and Weiss, Stephan (2011) Channel estimation and tracking for closed loop EO-STBC with differentially encoding feedback. In: 11th IEEE International Symposium on Signal Processing and Information Technology, 2011-12-14 - 2011-12-17, Bilbao.

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Abstract

Extended orthogonal space time block coding (EO-STBC) can achieve high transmit diversity over a multiple-input multiple-output (MIMO) channel. To do so, it requires channel state information on the transmitter side, which needs to be estimated and fed back from the receiver. Therefore, this paper explores an estimation and tracking scheme by means of a Kalman filter, which is integrated with EO-STBC detection and exploits the smooth evolution of the channel coefficients by applying differential feedback. For slow fading, we propose the inclusion of a drift vector in the Kalman model, which is motivated by a second order approximation of the underlying channel model and can be shown to offer advantages in terms of temporal smoothness when addressing channels whose coefficient trajectories evolve smoothly.

Item type: Conference or Workshop Item (Paper)
ID code: 37960
Keywords: channel estimation, closed loop EO-STBC , differentially encoding feedback, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Technology and Innovation Centre > Sensors and Asset Management
Depositing user: Pure Administrator
Date Deposited: 27 Feb 2012 16:21
Last modified: 24 Jul 2015 08:27
Related URLs:
URI: http://strathprints.strath.ac.uk/id/eprint/37960

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