Title :
Multiple Antenna Broadcast Channels With Limited Feedback
Author :
Ding, Peilu ; Love, David J. ; Zoltowski, Michael D.
Author_Institution :
Motorola Labs, Schaumburg, IL
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
Keywords :
antenna arrays; broadcast channels; encoding; feedback; quantisation (signal); wireless channels; ceiling effect; channel state information; limited feedback; limited feedback scheme; multiple antenna broadcast channels; quantized CSI; zero-forcing dirty paper coding; Antenna feeds; Array signal processing; Broadcasting; Channel state information; Error analysis; Feedback; MIMO; Mobile antennas; Receiving antennas; Upper bound;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1660896
