| Publisher | The University of Iowa | ||
|---|---|---|---|
| Format | 336.4KB PDF, requires Acrobat Rdr 5 | Date added | 01 May 2003 |
| Topics | Modems | ||
| Downloads | 28 | ||
This paper proposes a novel block differentially encoded orthogonal frequency-division multiplexing for multicarrier transmissions over frequency-selective fading channels. Choosing appropriate system parameters, we divide the set of correlated subchannels into subsets of independent subchannels. Within each subset, differential unitary space-time modulation is performed by treating each subchannel as a transmit antenna. In addition to low complexity, the proposed system enjoys maximum multipath diversity and high coding advantages. Analytic evaluation and corroborating simulations reveal its performance merits.
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