TY - GEN
T1 - Effect of phase control based PAPR reduction in MIMO adaptive modulated vector coding systems
AU - Muta, Osamu
PY - 2011
Y1 - 2011
N2 - As a solution to high peak-to-average power ratio (PAPR) problems in vector coding (VC) systems, phase control based methods such as selected mapping and partial transmit sequence have been investigated. In this paper, a phase sequence blind estimation method is presented for PAPR reduction based on phase control in multi-input multi-output (MIMO) adaptive modulated vector coding systems, where Turbo code is employed. On the receiver side, the phase sequence component is estimated using a maximum likelihood method which selects the most likelihood sequence among all candidate ones by exploiting soft-output information of the decoder. Computer simulation results show that when the number of candidate sequences in SLM is M 16, instantaneous power of the transmit signal at the CCDF of 10 6 can be reduced by about 4.5dB and 3.4dB for SISO and MIMO cases as compared to case without PAPR reduction, while almost the same block error rate (BLER) performance and the same throughput performance as case of the prefect phase sequence estimation are achieved in attenuated 6-path Rayleigh fading condition.
AB - As a solution to high peak-to-average power ratio (PAPR) problems in vector coding (VC) systems, phase control based methods such as selected mapping and partial transmit sequence have been investigated. In this paper, a phase sequence blind estimation method is presented for PAPR reduction based on phase control in multi-input multi-output (MIMO) adaptive modulated vector coding systems, where Turbo code is employed. On the receiver side, the phase sequence component is estimated using a maximum likelihood method which selects the most likelihood sequence among all candidate ones by exploiting soft-output information of the decoder. Computer simulation results show that when the number of candidate sequences in SLM is M 16, instantaneous power of the transmit signal at the CCDF of 10 6 can be reduced by about 4.5dB and 3.4dB for SISO and MIMO cases as compared to case without PAPR reduction, while almost the same block error rate (BLER) performance and the same throughput performance as case of the prefect phase sequence estimation are achieved in attenuated 6-path Rayleigh fading condition.
UR - http://www.scopus.com/inward/record.url?scp=84555195686&partnerID=8YFLogxK
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U2 - 10.1109/WCSP.2011.6096816
DO - 10.1109/WCSP.2011.6096816
M3 - Conference contribution
AN - SCOPUS:84555195686
SN - 9781457710100
T3 - 2011 International Conference on Wireless Communications and Signal Processing, WCSP 2011
BT - 2011 International Conference on Wireless Communications and Signal Processing, WCSP 2011
T2 - 2011 International Conference on Wireless Communications and Signal Processing, WCSP 2011
Y2 - 9 November 2011 through 11 November 2011
ER -