Layered space-frequency coding and receiver design for MIMO MC-CDMA

Mikko Vehkaperä, Djordje Tujkovic, Zexian Li, Markku Juntti

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

8 Citations (Scopus)


For the single-user communications pragmatic yet powerful methods known as layered space-time (LST) architectures provide means to increase the user data rate of a multiple-input multiple-output (MIMO) antenna system dramatically. To achieve better error rate performance, the LST transmission can be further accompanied with forward error correction coding. Future wireless communication systems will, however, require high data rates also in multiuser environments. For broadband multiuser wireless communications, multicarrier code-division multiple-access (MC-CDMA) has emerged as an attractive technique due to its low equalization complexity and robust performance in multipath fading channels. Utilizing strong channel coding and LST architectures with MC-CDMA, high spectral efficiency and good error rate performance can be obtained in diverse environments. In this paper, single and multi-antenna turbo coded downlink MC-CDMA is combined with the concept of LST architectures. Due to the inevitable complexity restrictions, a suboptimal receiver interface for the underlying system is designed and its performance is evaluated in fading channels. The results demonstrate that significant improvement in both error rate performance and the system throughput can be achieved also with multiuser communications by using these MIMO techniques.
Original languageEnglish
Title of host publication2004 IEEE International Conference on Communications
PublisherIEEE Institute of Electrical and Electronic Engineers
ISBN (Print)978-0-7803-8533-7
Publication statusPublished - 30 Aug 2004
MoE publication typeA4 Article in a conference publication
EventIEEE International Conference on Communications, ICC 2004 - Paris, France
Duration: 20 Jun 200424 Jun 2004


ConferenceIEEE International Conference on Communications, ICC 2004


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