{"title":"Design of a low-complexity O-QPSK transceiver with spatial modulation for internet-of-things applications","authors":"Ching-Hoa Yang, P. Tsai","doi":"10.1109/APCCAS.2016.7803955","DOIUrl":null,"url":null,"abstract":"In this paper, we propose an O-QPSK transceiver with five modes including 2×2 spatial-modulation mode to offer different data rates for supporting diverse internet-of-things (IoT) applications. Synchronization, channel estimation and joint ML detection for spatial modulation at the receiver are presented. To accomplish a low-complexity design, we use ℓ1-norm instead of ℓ2-norm, share the intermediate computation results, and exploit the property of the pulse-shaping-window coefficients for the joint Ml detection. Almost 78.8% reduction in computational complexity is achieved with only 0.2dB performance loss. The simulation results show that the low-complexity transceiver works well in the low-SNR region with low-rate modes and also supports up to 3Mbps with the spatial modulation.","PeriodicalId":6495,"journal":{"name":"2016 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APCCAS.2016.7803955","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
In this paper, we propose an O-QPSK transceiver with five modes including 2×2 spatial-modulation mode to offer different data rates for supporting diverse internet-of-things (IoT) applications. Synchronization, channel estimation and joint ML detection for spatial modulation at the receiver are presented. To accomplish a low-complexity design, we use ℓ1-norm instead of ℓ2-norm, share the intermediate computation results, and exploit the property of the pulse-shaping-window coefficients for the joint Ml detection. Almost 78.8% reduction in computational complexity is achieved with only 0.2dB performance loss. The simulation results show that the low-complexity transceiver works well in the low-SNR region with low-rate modes and also supports up to 3Mbps with the spatial modulation.
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