TY - GEN
T1 - A vector mapping scheme for efficient implementation of beamforming MIMO systems
AU - Duarte, Melissa
AU - Sabharwal, Ashutosh
AU - Dick, Chris
AU - Rao, Raghu
PY - 2008
Y1 - 2008
N2 - Quantized feedback in multiple antenna systems has the potential to increase throughput and/or reduce probability of outage. However, current beamforming code-book designs lead to large implementation complexity of the channel quantizer. We propose a vector mapping scheme to construct beamforming codebooks from existing codebooks. We show that beamforming codebooks constructed via the proposed vector mapping have a structure that allows an efficient immplementation of the channel quantizer. We show that the proposed vector mapping can also be used to simplify the implementation of the chanel quantizer in a WiMAX compliant system, where the codebooks have already been defined. Simulation results validate the proposed codebook construction method.
AB - Quantized feedback in multiple antenna systems has the potential to increase throughput and/or reduce probability of outage. However, current beamforming code-book designs lead to large implementation complexity of the channel quantizer. We propose a vector mapping scheme to construct beamforming codebooks from existing codebooks. We show that beamforming codebooks constructed via the proposed vector mapping have a structure that allows an efficient immplementation of the channel quantizer. We show that the proposed vector mapping can also be used to simplify the implementation of the chanel quantizer in a WiMAX compliant system, where the codebooks have already been defined. Simulation results validate the proposed codebook construction method.
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U2 - 10.1109/MILCOM.2008.4753617
DO - 10.1109/MILCOM.2008.4753617
M3 - Conference contribution
AN - SCOPUS:62349089303
SN - 9781424426775
T3 - Proceedings - IEEE Military Communications Conference MILCOM
BT - 2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success
T2 - 2008 IEEE Military Communications Conference, MILCOM 2008 - Assuring Mission Success
Y2 - 17 November 2008 through 19 November 2008
ER -