Algebraic constructions of space-frequency codes

Mao Ching Chiu*, Francis Lu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recently an algebraic construction of (nt × Q) space-frequency (SF) codes over finite field ℱq was proposed for use in MIMO-OFDM systems, where nt is the number of transmit antenna and Q = qnt - 1 is the number of subcarriers employed in the code. One inconvenience arising from that construction is that the number of subcarriers Q can sometimes be insufficient for constructing codes of large minimum column distance. To completely eliminate this disadvantage, an alternative construction of SF codes with Q = qm - 1 is provided in this paper, whenever m is a multiple of nt. Lower bounds on the minimum rank and column distances of the proposed construction are also given. Simulation results show that the newly constructed codes provide a significant improvement in SNR compared to other SF codes available in the literature.

Original languageEnglish
Title of host publication2007 IEEE International Conference on Communications, ICC'07
Pages768-772
Number of pages5
DOIs
StatePublished - 1 Dec 2007
Event2007 IEEE International Conference on Communications, ICC'07 - Glasgow, Scotland, United Kingdom
Duration: 24 Jun 200728 Jun 2007

Publication series

NameIEEE International Conference on Communications
ISSN (Print)0536-1486

Conference

Conference2007 IEEE International Conference on Communications, ICC'07
CountryUnited Kingdom
CityGlasgow, Scotland
Period24/06/0728/06/07

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