| Presentation | 2008-03-06 Constellation Rotated OSDM Systems and Its Performance over Rayleigh Fading Channels Chenggao HAN, Takeshi HASHIMOTO, Naoki SUEHIRO, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | OFDM technique are widely used in communication systems which work under multi-path environment e.g. ADSL, WLAN and DVB etc.. In OFDM system, little inter symbol interference (ISI) can often be tolerated and no extra counter measure such as an equalizer is needed. This, though, does not perform well when the channel nulls are located on the subcarriers. On the other hand, Suehiro, et al. have proposed orthogonal signal division multiplexing (OSDM) system. In OSDM, multi-path environment robustness guarantees symbols recovery by low complexity of receiver even the channel nulls are located on the subcarriers. However, the performance of OSDM is strongly depends on channels and may fail to achieve full diversity. In this paper, we propose a novel constel-lation-rotated OSDM (CR-OSDM) system. By combining constellation rotation technique which is specialized to OSDM system, the performance become to independent for channel with full diversity. Moreover, we propose new approach for derive rotation angle. In our approach, the rotation angle is decided to minimize symbol error rate or bit error rate while in other constellation rotation technique such as usually used in space time block code, the angle is decided to maximize minimum distance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OSDM / OFDM / CR-OSDM / constellation rotation / frequency usage efficiency |
| Paper # | RCS2007-222 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2008/2/27(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Constellation Rotated OSDM Systems and Its Performance over Rayleigh Fading Channels |
| Sub Title (in English) | |
| Keyword(1) | OSDM |
| Keyword(2) | OFDM |
| Keyword(3) | CR-OSDM |
| Keyword(4) | constellation rotation |
| Keyword(5) | frequency usage efficiency |
| 1st Author's Name | Chenggao HAN |
| 1st Author's Affiliation | The Department of Electronic Engineering, University of Electro-Communications() |
| 2nd Author's Name | Takeshi HASHIMOTO |
| 2nd Author's Affiliation | The Department of Electronic Engineering, University of Electro-Communications |
| 3rd Author's Name | Naoki SUEHIRO |
| 3rd Author's Affiliation | Graduate School of Systems and Information Engineering, University of Tsukuba |
| Date | 2008-03-06 |
| Paper # | RCS2007-222 |
| Volume (vol) | vol.107 |
| Number (no) | 518 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |