| Presentation | 2004-08-27 Iterative MMSE MIMO OFDM scheme for Wireless Communications Wladimir BOCQUETT, Michiharu NAKAMURA, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | As applications move to higher data rates over wireless channels, Inter Symbol Interference (ISI) becomes a problem. As the data rate increases in a multi-path environment, the interference goes from being characterized as at fading to frequency selective fading. The multi-path components begin to interfere with later symbols, resulting in irreducible error floors. Many solution exists to compensate ISI, the most popular of which has up till recently been equalizers. As we move to higher data rates, equalizer complexity grows to level of complexity where training time exceeds the coherence time of the channel and an alternate solution is Multi-Carrier Modulation (MCM). In this technique, the channel is broken up into several sub-bands. The number of sub-band is defined such that the fading over each MCM sub-channel becomes flat fading. In addition, the use of multiple antennas at the transmitter and the receiver results in enormous capacity increase. It has been well known that a spectral efficiency near the Shannon bound is able to be achieved in Multi-Input Multi-Output (MIMO) systems. However, such capacity is attained with penalty of tremendous receiver complexity. This paper proposes a novel detection method for adapting MMSE detection in the case of MIMO-OFDM transmission. Results will show that significant improvement, in term of Bit Error Rate (BER), is obtained compare to the conventional MMSE. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / OFDM / IEEE 802.1 la/g / MMSE / α priori information |
| Paper # | RCS2004-148 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2004/8/20(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) | Iterative MMSE MIMO OFDM scheme for Wireless Communications |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | OFDM |
| Keyword(3) | IEEE 802.1 la/g |
| Keyword(4) | MMSE |
| Keyword(5) | α priori information |
| 1st Author's Name | Wladimir BOCQUETT |
| 1st Author's Affiliation | Fujitsu, Laboratories Ltd.() |
| 2nd Author's Name | Michiharu NAKAMURA |
| 2nd Author's Affiliation | Fujitsu, Laboratories Ltd. |
| Date | 2004-08-27 |
| Paper # | RCS2004-148 |
| Volume (vol) | vol.104 |
| Number (no) | 258 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |