TY - JOUR
T1 - Implementation-Friendly and Energy-Efficient Symbol-by-Symbol Detection Scheme for IEEE 802.15.4 O-QPSK Receivers
AU - Zhang, Gaoyuan
AU - Shi, Congyu
AU - Han, Congzheng
AU - Li, Xingwang
AU - Wang, Dan
AU - Rabie, Khaled
AU - Kharel, Rupak
N1 - Funding Information:
Corresponding authors: Gaoyuan Zhang ([email protected]), Congzheng Han ([email protected]), and Dan Wang ([email protected]) This work was supported in part by the National Natural Science Foundation of China under Grant 61701172, Grant 41605122, Grant 61701059, Grant 61701062, Grant 61801170, Grant 61801171, and Grant 61772175; in part by the Scientific and Technological Innovation Team of Colleges and Universities in Henan Province under Grant 20IRTSTHN018; in part by the Open Foundation of the Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences; in part by the Postdoctoral Science Foundation, University of Electronic Science and Technology of China, under Grant Y02006023601721; in part by the Program for Everest Scholar Talents Development in Tibet University; and in part by the Program for Science and Technology Innovation Talents in the University of Henan Province (Educational Committee) under Grant 17HASTIT025.
Publisher Copyright:
© 2020 Institute of Electrical and Electronics Engineers Inc.. All rights reserved.
PY - 2020/9/10
Y1 - 2020/9/10
N2 - In this article, the noncoherent detection scheme for the receiver in wireless sensor nodes is discussed. That is, an implementation-friendly and energy-efficient symbol-by-symbol detection scheme for IEEE 802.15.4 offset-quadrature phase shift keying (O-QPSK) receivers is investigated under both pure additive white Gaussian noise (AWGN) channel and fading channel. Specifically, the residual carrier frequency offset (CFO) of the chip sample is estimated and compensated with the aid of the preamble; then, the standard noncoherent detection scheme with perfectly known CFO is directly configured. The corre- sponding simulation results show that only 4 preamble symbols is sufficient for accurate CFO estimation. Compared with the conventional noncoherent detector, the average running time per data packet of our enhanced detector is only 0.17 times of the former; meanwhile, at the packet error rate of 1 × 10..3, our enhanced detector can obtain 2.2 dB gains in the (32, 4) direct sequence spread spectrum system. A more reasonable trade-off between complexity and reliability is thus achieved for energy-saving and maximum service life in wireless sensor networks (WSNs).
AB - In this article, the noncoherent detection scheme for the receiver in wireless sensor nodes is discussed. That is, an implementation-friendly and energy-efficient symbol-by-symbol detection scheme for IEEE 802.15.4 offset-quadrature phase shift keying (O-QPSK) receivers is investigated under both pure additive white Gaussian noise (AWGN) channel and fading channel. Specifically, the residual carrier frequency offset (CFO) of the chip sample is estimated and compensated with the aid of the preamble; then, the standard noncoherent detection scheme with perfectly known CFO is directly configured. The corre- sponding simulation results show that only 4 preamble symbols is sufficient for accurate CFO estimation. Compared with the conventional noncoherent detector, the average running time per data packet of our enhanced detector is only 0.17 times of the former; meanwhile, at the packet error rate of 1 × 10..3, our enhanced detector can obtain 2.2 dB gains in the (32, 4) direct sequence spread spectrum system. A more reasonable trade-off between complexity and reliability is thus achieved for energy-saving and maximum service life in wireless sensor networks (WSNs).
KW - IEEE 802.15.4 wireless sensor networks
KW - Internet of Things
KW - Offset QPSK
KW - Symbol- by-symbol detection
UR - http://www.scopus.com/inward/record.url?scp=85097135191&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2020.3020183
DO - 10.1109/ACCESS.2020.3020183
M3 - Article
AN - SCOPUS:85097135191
VL - 8
SP - 158402
EP - 185415
JO - IEEE Access
JF - IEEE Access
SN - 2169-3536
M1 - 9179701
ER -