Single Carrier Frequency Domain Equalization on a Real-Time DSP-Based MIMO Test-Bed

Konferenz: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
11.09.2005 - 14.09.2005 in Berlin, Germany

Tagungsband: PIMRC 2005

Seiten: 5Sprache: EnglischTyp: PDF

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Logothetis, Andrew; Osseiran, Afif (Ericsson Research, 164 80 Stockholm, Sweden)
Zetterberg, Per (Royal Institute of Technology (KTH), Osquldasväg 10, 100 44 Stockholm, Sweden)

In this paper, single carrier frequency domain equalization with space time transmit diversity was implemented and evaluated in real-time using a DSP-based wireless MIMO test-bed. The implemented schemes supported a large set of modulations, from BPSK up to QAM64. Zero padding is introduced to mitigate inter-block interference. Robust time and frequency synchronization together with channel estimation based on Kalman filtering is used to address the adverse inter-symbol interference and the severe carrier frequency offset due to hardware impairments.