Abstract
We propose a random beamforming technique in multiuser multi-antenna orthogonal frequency division multiplexing (OFDM) systems for a large system capacity and fairness among users. In the proposed technique, we allocate several beams on each subcarrier to users based on signal-to-interference plus noise ratio (SINR) and all the remaining beams on each subcarrier by the proportional fairness (PF) algorithm. We also use the random unitary matrices corresponding to the beams and subcarriers where each user with low capacity has its highest SINR in the next time slot. We show that compared to the conventional techniques, such as the SINR-based scheduling scheme and the PF scheduling scheme, the proposed technique achieves high system capacity with about the same variance of user capacity.
| Original language | English |
|---|---|
| Title of host publication | IEEE Vehicular Technology Conference |
| DOIs | |
| Publication status | Published - 2008 |
| Event | 68th Semi-Annual IEEE Vehicular Technology, VTC 2008-Fall, Conference - Calgary, AB, Canada Duration: 2008 Sep 21 → 2008 Sep 24 |
Other
| Other | 68th Semi-Annual IEEE Vehicular Technology, VTC 2008-Fall, Conference |
|---|---|
| Country | Canada |
| City | Calgary, AB |
| Period | 08/9/21 → 08/9/24 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Science Applications
- Applied Mathematics
Cite this
A random beamforming technique in multiuser multi-antenna OFDM systems for large system capacity and fairness among users. / Eriguchi, Yoshitaka; Ohtsuki, Tomoaki.
IEEE Vehicular Technology Conference. 2008. 4656934.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - A random beamforming technique in multiuser multi-antenna OFDM systems for large system capacity and fairness among users
AU - Eriguchi, Yoshitaka
AU - Ohtsuki, Tomoaki
PY - 2008
Y1 - 2008
N2 - We propose a random beamforming technique in multiuser multi-antenna orthogonal frequency division multiplexing (OFDM) systems for a large system capacity and fairness among users. In the proposed technique, we allocate several beams on each subcarrier to users based on signal-to-interference plus noise ratio (SINR) and all the remaining beams on each subcarrier by the proportional fairness (PF) algorithm. We also use the random unitary matrices corresponding to the beams and subcarriers where each user with low capacity has its highest SINR in the next time slot. We show that compared to the conventional techniques, such as the SINR-based scheduling scheme and the PF scheduling scheme, the proposed technique achieves high system capacity with about the same variance of user capacity.
AB - We propose a random beamforming technique in multiuser multi-antenna orthogonal frequency division multiplexing (OFDM) systems for a large system capacity and fairness among users. In the proposed technique, we allocate several beams on each subcarrier to users based on signal-to-interference plus noise ratio (SINR) and all the remaining beams on each subcarrier by the proportional fairness (PF) algorithm. We also use the random unitary matrices corresponding to the beams and subcarriers where each user with low capacity has its highest SINR in the next time slot. We show that compared to the conventional techniques, such as the SINR-based scheduling scheme and the PF scheduling scheme, the proposed technique achieves high system capacity with about the same variance of user capacity.
UR - http://www.scopus.com/inward/record.url?scp=58149120696&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=58149120696&partnerID=8YFLogxK
U2 - 10.1109/VETECF.2008.102
DO - 10.1109/VETECF.2008.102
M3 - Conference contribution
AN - SCOPUS:58149120696
SN - 9781424417223
BT - IEEE Vehicular Technology Conference
ER -