Improving Space-Time Code Performance in Slow Fading Channels using Reconfigurable Antennas

Type of content
Journal Article
Thesis discipline
Degree name
Publisher
University of Canterbury. Electrical and Computer Engineering
University of Canterbury. Mathematics and Statistics
Journal Title
Journal ISSN
Volume Title
Language
Date
2012
Authors
Martin, P.A.
Smith, P.J.
Murch, R.
Abstract

Space-time block codes typically only span a small number of time slots. However, error control coding spanning hundreds or thousands of symbol periods is often used with space-time coding. In this case, slow fading channels significantly degrade performance. In this letter, we show that performance can be significantly improved in slow fading conditions by using reconfigurable antennas. We propose switching the transmit antenna states during transmission so that the error control code experiences several different channel conditions over the transmission period. Hence, it can achieve higher diversity and the superior performance expected of a faster fading channel due to reconfigurable antenna state switching. If we also allow the receiver to select the reconfigurable receive antenna states based on channel energy, then an antenna state selection gain is also achieved.

Description
Citation
Martin, P.A., Smith, P.J., Murch, R. (2012) Improving Space-Time Code Performance in Slow Fading Channels using Reconfigurable Antennas. IEEE Communication Letters, 16(4), pp. 494 - 497.
Keywords
MIMO, reconfigurable antennas, space time coding
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Fields of Research::40 - Engineering::4006 - Communications engineering::400601 - Antennas and propagation
Field of Research::10 - Technology::1005 - Communications Technologies::100510 - Wireless Communications
Rights
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