| Presentation | 2010-11-12 Canceling and Metric-Combining Multiuser Detection for Uplink OFDMA Packet Systems with Retransmission Control Hideya SO, Satoshi SUYAMA, Kazuhiko FUKAWA, Hiroshi SUZUKI, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report considers an uplink OFDMA packet mobile communication system that can multiplex plural packets of mobile stations (MSs) within the same time and frequency-band, and then proposes a multiuser detection (MUD) scheme that can combine retransmitted packets while separating multiplexed packets with low complexity. As a conventional scheme, the metric-combining MUD (MC-MUD) combines retransmitted packets by using the metric, that is the squared Euclid distance between the received signal and its replica. When packets are correctly received, the throughput of MC-MUD degrades because it cannot multiplex new packets and needs to retransmit the same packets for keeping complexity of each retransmission constant. To overcome such a problem, this report proposes canceling and metric-combining MUD (CMC-MUD) that can multiplex new packets of MSs so as to improve the throughput. CMC-MUD reduces the number of states of MLD by using replica signals of correctly received packets, and optimally combines retransmitted packets by using the metric without increasing the number of states. Computer simulations demonstrate that CMC-MUD can achieve the excellent throughput performance compared with conventional ones, and evaluate the performance of CMC-MUD with hybrid ARQ and adaptive modulation and coding. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mobile communications / OFDMA / packet transmission / multiuser detection / retransmission / adaptive modulation and coding / hybrid ARQ |
| Paper # | RCS2010-158 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2010/11/4(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Canceling and Metric-Combining Multiuser Detection for Uplink OFDMA Packet Systems with Retransmission Control |
| Sub Title (in English) | |
| Keyword(1) | Mobile communications |
| Keyword(2) | OFDMA |
| Keyword(3) | packet transmission |
| Keyword(4) | multiuser detection |
| Keyword(5) | retransmission |
| Keyword(6) | adaptive modulation and coding |
| Keyword(7) | hybrid ARQ |
| 1st Author's Name | Hideya SO |
| 1st Author's Affiliation | Tokyo Institute of Technology() |
| 2nd Author's Name | Satoshi SUYAMA |
| 2nd Author's Affiliation | Tokyo Institute of Technology |
| 3rd Author's Name | Kazuhiko FUKAWA |
| 3rd Author's Affiliation | Tokyo Institute of Technology |
| 4th Author's Name | Hiroshi SUZUKI |
| 4th Author's Affiliation | Tokyo Institute of Technology |
| Date | 2010-11-12 |
| Paper # | RCS2010-158 |
| Volume (vol) | vol.110 |
| Number (no) | 268 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |