Name
Abstract | ||
|---|---|---|
In the IEEE 802.11n draft standard, beamforming is adopted as an optional feature to improve signal reception and simplify receiver design. To facilitate beamforming, either the quantized channel state information or quantized steering matrix need to be fed back to the transmitter. In beamforming mode, the spatial channels are diagonalized, so power allocation can be employed to optimize transmission. In this paper, we propose two types of power loading schemes for IEEE 802.11n. The first one minimizes the arithmetic mean of the bit-error rate (ARITH-BER), and the second one minimizes the weighted arithmetic mean of the mean square error (ARITH-MSE). In each scheme, the power loading information can be combined with the existing feedback protocols, so no (or very little) additional feedback information is required. The simulation results illustrate that these power loading schemes can improve the packet error ratio (PER) performance, sometimes significantly. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/CISS.2008.4558648 | 2008 42ND ANNUAL CONFERENCE ON INFORMATION SCIENCES AND SYSTEMS, VOLS 1-3 |
Keywords | Field | DocType |
feedback,modulation,arithmetic mean,mimo,resource management,mean square error,arithmetic,channel state information,weighted arithmetic mean,protocols,bit error rate,transmitters | Transmitter,Beamforming,Mathematical optimization,Computer science,Mean squared error,MIMO,Communication channel,Electronic engineering,Theoretical computer science,IEEE 802,Bit error rate,Channel state information | Conference |
Citations | PageRank | References |
0 | 0.34 | 1 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xiantao Sun | 1 | 3 | 2.21 |
| Leonard J. Cimini Jr. | 2 | 812 | 65.23 |
| Douglas S. Chan | 3 | 90 | 8.37 |
| Larry J. Greenstein | 4 | 520 | 76.65 |