Abstract
Multimode transmission has been studied to improve BER and outage capacity in the point-to-point system. In this paper, we consider the multimode transmission for downlink MIMO based on random beamforming(RBF) with limited feedback. We propose four heuristic mode selection and feedback policies to improve the sum rate and outage performance of downlink RBF system based on two approaches: distributed and centralized. Simulation results show that the centralized mode selection scheme with reasonable feedback amount provides waterfilling effect as well as the multiuser diversity gain, leading to the performance improvement of RBF in terms of sum rate and outage probability.
| Original language | English |
|---|---|
| Title of host publication | 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC |
| Pages | 837-841 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2008 |
| Event | 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, Singapore Duration: 2008 May 11 → 2008 May 14 |
Publication series
| Name | IEEE Vehicular Technology Conference |
|---|---|
| ISSN (Print) | 1550-2252 |
Other
| Other | 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC |
|---|---|
| Country | Singapore |
| City | Marina Bay |
| Period | 08/5/11 → 08/5/14 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics
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Chae, H., Kim, Y., Yang, J. H., Ihm, B. C., & Kim, D. K. (2008). Multimode random beamforming for multiuser downlink MIMO system with limited feedback. In 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC (pp. 837-841). [4525738] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2008.182