Name
Abstract | ||
|---|---|---|
In this paper, we consider a cooperative relay scheme for a mobile network with MIMO technology. The channel capacity for two well-known relaying schemes are investigated: analogue relaying (amplify and forward) and digital relaying (decode and forward) from a mobile device to the base station through a relay node. In order to further increase the channel capacity, we propose an efficient hierarchical procedure based on support vector machine, namely hierarchical support vector machines (HSVM), to estimate the wireless networks condition approximately and design two ways (matched filter and minimum mean square error filter) of increasing the channel capacity according to the estimated wireless network condition. The proposed HSVM can estimate the wireless networks condition in much shorter time compared with the traditional minimum mean square error scheme without incurring much estimation error, which is spatial, useful for delay sensitive communication. For digital relaying, the effect of imperfect channel decode is also addressed. Our numerical results demonstrate the reduction of estimation complexity by adopting HSVM and the significant improvement of network capacity by applying the matched filter weight at relay nodes according to the network estimation. Copyright (c) 2011 John Wiley & Sons, Ltd. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1002/dac.1346 | INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS |
Keywords | Field | DocType |
SVM, relay network, channel capacity, MIMO | Wireless network,Relay channel,Base station,Telecommunications,Computer science,Minimum mean square error,MIMO,Real-time computing,Cellular network,Channel capacity,Computer engineering,Relay | Journal |
Volume | Issue | ISSN |
26 | 3 | 1074-5351 |
Citations | PageRank | References |
8 | 0.50 | 16 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Baoyuan Liu | 1 | 132 | 5.64 |
| Vin-sen Feng | 2 | 21 | 1.24 |
| Shih Yu Chang | 3 | 351 | 30.40 |