Phase-sequence blind estimation for phase-rotation based PAPR reduction in MIMO coded-OFDM systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Major drawback in orthogonal frequency division multiplexing (OFDM) systems is that the transmit signal exhibits high peak-to-average power ratio (PAPR). In this paper, a phase sequence blind estimation method is presented for PAPR reduction based on a selected mapping (SLM) or a partial transmit sequence (PTS) in multi-input multi-output (MIMO) coded OFDM systems, where low density parity check (LDPC) code is employed. On the receiver side, the selected phase sequence information is estimated using a maximum likelihood method which selects the most likelihood sequence among all candidate sequences by exploiting soft-output information of the decoder. Computer simulation results show that when the number of candidate sequences in SLM is M = 256, instantaneous power of the transmit signal at the CCDF of 10 -6 can be reduced by about 3.9dB as compared to case without PAPR reduction, while almost the same bit error rate (BER) performance as case of the prefect phase sequence estimation is achieved in attenuated 12-path Rayleigh fading condition.

Original languageEnglish
Title of host publication5th International Conference on Signal Processing and Communication Systems, ICSPCS'2011 - Proceedings
DOIs
Publication statusPublished - Dec 1 2011
Event5th International Conference on Signal Processing and Telecommunication Systems, ICSPCS'2011 - Honolulu, HI, United States
Duration: Dec 12 2011Dec 14 2011

Publication series

Name5th International Conference on Signal Processing and Communication Systems, ICSPCS'2011 - Proceedings

Other

Other5th International Conference on Signal Processing and Telecommunication Systems, ICSPCS'2011
CountryUnited States
CityHonolulu, HI
Period12/12/1112/14/11

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing

Fingerprint Dive into the research topics of 'Phase-sequence blind estimation for phase-rotation based PAPR reduction in MIMO coded-OFDM systems'. Together they form a unique fingerprint.

Cite this