Yang, Ching-HaoChing-HaoYangPEI YUN TSAI2024-09-182024-09-182017https://www.scopus.com/record/display.uri?eid=2-s2.0-85011093312&origin=resultslisthttps://scholars.lib.ntu.edu.tw/handle/123456789/721454Jeju, 25 October 2016 through 28 October 2016In 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. © 2016 IEEE.ML detectionO-QPSKspatial modulationtransceiverWireless sensor networkconference paper10.1109/APCCAS.2016.78039552-s2.0-85011093312