| Paper: | SPCOM-L2.1 | ||
| Session: | Broadcast Channels | ||
| Time: | Tuesday, May 16, 16:30 - 16:50 | ||
| Presentation: | Lecture | ||
| Topic: | Signal Processing for Communication: MIMO multi-user and multi-access schemes | ||
| Title: | Multiple Antenna Broadcast Channels with Limited Feedback | ||
| Authors: | Peilu Ding, Motorola Labs, United States; David Love, Michael D. Zoltowski, Purdue University, United States | ||
| Abstract: | 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. | ||
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