Abstract
Jointly optimized linear transmit beamforming and receive combining is a low complexity approach for communication in the multiuser MIMO (multiple input multiple output) broadcast channel. This paper proposes an iterative algorithm for jointly designing the beamforming and combining vectors, which enforces a zero interference requirement after combining. Since the optimization is performed at the base station with channel state information for all the users, the receive beamformers are quantized at the basestation and sent to the users via a low-rate feedforward control channel. Rate bounds are provided to estimate the impact of quantization loss on the achievable rate in Rayleigh channels is performed. Simulations show that the proposed approach using Grassmannian codebooks approaches the sum capacity of the MIMO broadcast channel.
| Original language | English |
|---|---|
| Title of host publication | Conference Record of the 40th Asilomar Conference on Signals, Systems and Computers, ACSSC '06 |
| Pages | 1511-1515 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2006 Dec 1 |
| Event | 40th Asilomar Conference on Signals, Systems, and Computers, ACSSC '06 - Pacific Grove, CA, United States Duration: 2006 Oct 29 → 2006 Nov 1 |
Publication series
| Name | Conference Record - Asilomar Conference on Signals, Systems and Computers |
|---|---|
| ISSN (Print) | 1058-6393 |
Other
| Other | 40th Asilomar Conference on Signals, Systems, and Computers, ACSSC '06 |
|---|---|
| Country | United States |
| City | Pacific Grove, CA |
| Period | 06/10/29 → 06/11/1 |
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All Science Journal Classification (ASJC) codes
- Signal Processing
- Computer Networks and Communications
Cite this
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Coordinated beamforming for multiuser MIMO systems with limited feedforward. / Chae, Chan-Byoung; Mazzarese, David; Heath, Robert W.
Conference Record of the 40th Asilomar Conference on Signals, Systems and Computers, ACSSC '06. 2006. p. 1511-1515 4176820 (Conference Record - Asilomar Conference on Signals, Systems and Computers).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Coordinated beamforming for multiuser MIMO systems with limited feedforward
AU - Chae, Chan-Byoung
AU - Mazzarese, David
AU - Heath, Robert W.
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Jointly optimized linear transmit beamforming and receive combining is a low complexity approach for communication in the multiuser MIMO (multiple input multiple output) broadcast channel. This paper proposes an iterative algorithm for jointly designing the beamforming and combining vectors, which enforces a zero interference requirement after combining. Since the optimization is performed at the base station with channel state information for all the users, the receive beamformers are quantized at the basestation and sent to the users via a low-rate feedforward control channel. Rate bounds are provided to estimate the impact of quantization loss on the achievable rate in Rayleigh channels is performed. Simulations show that the proposed approach using Grassmannian codebooks approaches the sum capacity of the MIMO broadcast channel.
AB - Jointly optimized linear transmit beamforming and receive combining is a low complexity approach for communication in the multiuser MIMO (multiple input multiple output) broadcast channel. This paper proposes an iterative algorithm for jointly designing the beamforming and combining vectors, which enforces a zero interference requirement after combining. Since the optimization is performed at the base station with channel state information for all the users, the receive beamformers are quantized at the basestation and sent to the users via a low-rate feedforward control channel. Rate bounds are provided to estimate the impact of quantization loss on the achievable rate in Rayleigh channels is performed. Simulations show that the proposed approach using Grassmannian codebooks approaches the sum capacity of the MIMO broadcast channel.
UR - http://www.scopus.com/inward/record.url?scp=44349131273&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44349131273&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2006.355010
DO - 10.1109/ACSSC.2006.355010
M3 - Conference contribution
AN - SCOPUS:44349131273
SN - 1424407850
SN - 9781424407859
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1511
EP - 1515
BT - Conference Record of the 40th Asilomar Conference on Signals, Systems and Computers, ACSSC '06
ER -