Name
Abstract | ||
|---|---|---|
For a closed-loop transmit (Tx) diversity, the Tx weights are calculated at a receiver, and fed back to a transmitter. As the number of Tx antennas increases, the potential gain of closed-loop Tx diversity may be significant. However, the amount of feedback information, which is the number of Tx weights that should be fed back, linearly increases, and the performance improvement of a closed-loop Tx diversity system may not be as significant as expected due to delay in the feedback process. Thus, an efficient Tx weight representation, which can reduce the amount of feedback information, is needed. In this letter, a Tx weight vector representation is presented, and its performance is analyzed. Analysis shows that this weight vector representation, referred to as basis selection, significantly reduces the amount of feedback information with little performance degradation. |
Year | DOI | Venue |
|---|---|---|
2002 | 10.1109/TCOMM.2003.822146 | IEEE Transactions on Communications |
Keywords | Field | DocType |
feedback information,diversity reception,transmit antennas,transmitting antennas,weight digitization,weight vector representation,antenna arrays,antenna theory,delays,feedback,closed-loop transmit diversity,3g mobile communication,feedback delay,basis selection,downlink,mobile communication,transmitter,transmit diversity,performance,feedback loop | Transmitter,Telecommunications,Cellular radio,Computer science,Computer network,Weight,Electronic engineering,Feedback loop,Mobile telephony,Performance improvement,Telecommunications link,Transmit diversity | Conference |
Volume | Issue | ISSN |
52 | 1 | 0090-6778 |
Citations | PageRank | References |
8 | 0.70 | 8 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Keun Chul Hwang | 1 | 15 | 2.38 |
| Kwang Bok Lee | 2 | 1249 | 128.45 |