Multiple antenna broadcast channels with limited feedback
被引:0
作者:
Ding, Peilu
论文数: 0引用数: 0
h-index: 0
机构:
Motorola Labs, Schaumburg, IL 60169 USAMotorola Labs, Schaumburg, IL 60169 USA
Ding, Peilu
[1
]
Love, David J.
论文数: 0引用数: 0
h-index: 0
机构:
Motorola Labs, Schaumburg, IL 60169 USAMotorola Labs, Schaumburg, IL 60169 USA
Love, David J.
[1
]
Zoltowski, Michael D.
论文数: 0引用数: 0
h-index: 0
机构:
Motorola Labs, Schaumburg, IL 60169 USAMotorola Labs, Schaumburg, IL 60169 USA
Zoltowski, Michael D.
[1
]
机构:
[1] Motorola Labs, Schaumburg, IL 60169 USA
来源:
2006 IEEE International Conference on Acoustics, Speech and Signal Processing, Vols 1-13
|
2006年
关键词:
D O I:
暂无
中图分类号:
O42 [声学];
学科分类号:
070206 ;
082403 ;
摘要:
In this paper, we study the limited feedback model for partial CSI at the basestation (BS) for multiple antenna broadcast channels: the BS has the knowledge of quantized CSI of each user. We first give a practical limited feedback scheme designed for multiple antenna broadcast channels. Then, we study the sum rate performance of zero-forcing dirty paper coding under the proposed limited feedback scheme. An upper bound is also derived to get some insight about the impact of the use of limited feedback. Interestingly, we find that the systems experience a ceiling effect on the sum rate for a fixed feedback rate.