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 Jul 28 |
| Event | 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, Singapore Duration: 2008 May 11 → 2008 May 14 |
Other
| Other | 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC |
|---|---|
| Country | Singapore |
| City | Marina Bay |
| Period | 08/5/11 → 08/5/14 |
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All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
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Multimode random beamforming for multiuser downlink MIMO system with limited feedback. / Chae, Hyukjin; Kim, Yohan; Yang, Jang Hoon; Ihm, Bin Chul; Kim, Dong Ku.
2008 IEEE 67th Vehicular Technology Conference-Spring, VTC. 2008. p. 837-841 4525738.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Multimode random beamforming for multiuser downlink MIMO system with limited feedback
AU - Chae, Hyukjin
AU - Kim, Yohan
AU - Yang, Jang Hoon
AU - Ihm, Bin Chul
AU - Kim, Dong Ku
PY - 2008/7/28
Y1 - 2008/7/28
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=47749149607&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47749149607&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2008.182
DO - 10.1109/VETECS.2008.182
M3 - Conference contribution
SN - 9781424416455
SP - 837
EP - 841
BT - 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
ER -