A Unified Analysis for Direct-Sequence CDMA in the Downlink of OFDM Systems (2003)
| Venue: | IEEE TRANSACTIONS ON COMMUNICATIONS, IN THE |
| Citations: | 1 - 1 self |
BibTeX
@ARTICLE{Persson03aunified,
author = {Anders Persson and Tony Ottosson and Erik G. Ström},
title = {A Unified Analysis for Direct-Sequence CDMA in the Downlink of OFDM Systems},
journal = {IEEE TRANSACTIONS ON COMMUNICATIONS, IN THE},
year = {2003}
}
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Abstract
This paper presents a unified analysis for the downlink BER performance of convolutionally coded and single-user detected MC-CDMA, MCDS-CDMA and TFL-CDMA. As a special case, an analysis is obtained also for OFDMA. The intra-cell interference is analyzed under the assumption of Hadamard spreading codes and a correlated frequency-selective Rayleigh-fading channel. The presented results assume error-free channel estimates and a perfectly synchronized receiver. It is concluded that the compared schemes achieve essentially the same performance for low system loads. For high loads, and especially in a near-far scenario, OFDMA is found to outperform the others.
