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An adaptive modulation precoding scheme for mean BER minimisation of ISI MIMO channels

Al-Hanafy, Waleed and Weiss, Stephan (2011) An adaptive modulation precoding scheme for mean BER minimisation of ISI MIMO channels. In: 19th European Signal Processing Conference, 2011-08-29 - 2011-09-02.

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Abstract

This paper considers error minimisation of a MIMO transmission system over frequency-selective (FS) channels. A non-linear precoding scheme with adaptive bit loading is proposed to minimise the average BER for a given target data rate. The proposed design utilise the recently developed polynomial singular value decomposition (PSVD) that decouples the FS MIMO channel into a number of independent FS SISO subchannels with different gains. Different from our previous work which assumes a heuristic bit loading, the work presented here allocates the transmission bits over the resulting FS SISO subchannels adaptively according to their SNR conditions. Simulation results show that better BER performance can be achieved for different data rate targets compared with both heuristic and uniform bit loading.

Item type: Conference or Workshop Item (Paper)
ID code: 32611
Keywords: signal processing, modulation schemes, bit loading, bit error rate, 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: 06 Sep 2011 14:23
Last modified: 22 Mar 2017 16:14
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URI: https://strathprints.strath.ac.uk/id/eprint/32611
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