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