{"title":"Comparison of partial transmit sequences and selected mapping for peak-to-average power ratio reduction in MIMO OFDM","authors":"C. Siegl, R. Fischer","doi":"10.1109/WSA.2008.4475577","DOIUrl":null,"url":null,"abstract":"Multicarrier systems suffer from a high peak-to-average power ratio (PAR) of their transmit signal as large signal peaks lead to power inefficiency of the amplifiers. This issue becomes even more serious in a multi-antenna transmitter. To increase power efficiency, a PAR reduction scheme must be applied at the transmitter. Recently, generalizations of two popular PAR reduction techniques, partial transmit sequences (PTS) and selected mapping (SLM), to multi-antenna systems have been proposed. In this paper, a comparison of these two schemes is accomplished. For that purpose, a point-to-point and a broadcast scenario is assessed. It is shown that under the condition of (almost) same computational complexity, PTS offers significant gains compared to SLM.","PeriodicalId":255495,"journal":{"name":"2008 International ITG Workshop on Smart Antennas","volume":"46 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 International ITG Workshop on Smart Antennas","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WSA.2008.4475577","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
Multicarrier systems suffer from a high peak-to-average power ratio (PAR) of their transmit signal as large signal peaks lead to power inefficiency of the amplifiers. This issue becomes even more serious in a multi-antenna transmitter. To increase power efficiency, a PAR reduction scheme must be applied at the transmitter. Recently, generalizations of two popular PAR reduction techniques, partial transmit sequences (PTS) and selected mapping (SLM), to multi-antenna systems have been proposed. In this paper, a comparison of these two schemes is accomplished. For that purpose, a point-to-point and a broadcast scenario is assessed. It is shown that under the condition of (almost) same computational complexity, PTS offers significant gains compared to SLM.
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