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On Throughput of MIMO-OFDM Systems with Joint Iterative Channel Estimation and Multiuser Detection under Different Multiple Access Schemes

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1 Author(s)
Salvo Rossi, P. ; Dept. of Inf. Eng., Second Univ. of Naples, Aversa, Italy

In this letter we compare the throughput performance of multiuser MIMO-OFDM systems operating in time-variant scenarios. The system employes packet-based transmissions and the receiver is twofold-iterative implementing multiuser detection, channel estimation and soft single-user decoding. Different combinations in terms of multiple-access techniques (time division, frequency division, and space division) and modulation schemes (BPSK and QPSK) are compared. Large-size constellations with interfering users in space-division multiple access (SDMA) are preferable in high-SNR range.

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Communications Letters, IEEE  (Volume:15 ,  Issue: 8 )