| Paper: | SPCOM-P6.7 | ||
| Session: | OFDM and Multi-Carrier Systems | ||
| Time: | Wednesday, May 19, 15:30 - 17:30 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing for Communications: Multi-Carrier, OFDM, and DMT Systems | ||
| Title: | OFDM VS. SINGLE-CARRIER: A MULTI-ANTENNA COMPARISON | ||
| Authors: | Liesbet Van der Perre; Interuniversity Micro-Electronics Center (IMEC) | ||
| Jan Tubbax; Interuniversity Micro-Electronics Center (IMEC) | |||
| Francois Horlin; Interuniversity Micro-Electronics Center (IMEC) | |||
| Hugo De Man; Interuniversity Micro-Electronics Center (IMEC) | |||
| Abstract: | OFDM is a popular modulation scheme for broadband wireless communication. It elegantly handles multi-path and has low complexity. Recently, Single-Carrier with Frequency-Domain processing (SC-FD) is gaining attention as a possible competitor for OFDM: it is based on the same principles and therefore, it has similar multi-path handling capabilities and low complexity. Moreover, SC-FD promises a several other attractive advantages, such as power amplifier efficiency and inherent frequency diversity exploitation. Current performance comparisons do not consider these effects combined. In this paper, we make the comparison in a realistic scenario considering both the power amplifier efficiency and frequency diversity. Our results show that in a multi-path environment SC-FD can outperform OFDM by 4 dB, largely due to the better frequency diversity exploitation. Therefore, SC-FD is a good alternative to OFDM for battery-powered terminals, and is therefore especially suited for up-link communication. | ||
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