Open AccessJoint Viterbi detection and decoding algorithm for bluetooth low energy systems
Author(s) -
Park Chulhyun,
Jung Yongchul,
Kim Jihoon,
Jung Yunho
Publication year - 2020
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2019.2621
Subject(s) - viterbi algorithm , computer science , minimum shift keying , soft output viterbi algorithm , algorithm , convolutional code , decoding methods , iterative viterbi decoding , viterbi decoder , sequential decoding , electronic engineering , phase shift keying , bit error rate , engineering , block code
An efficient joint Viterbi detection and decoding (JVDD) algorithm for a bluetooth low energy (BLE) system is proposed. Since the convolutional coded Gaussian minimum‐shift keying (GMSK) signal is specified in the BLE 5.0 standard, two Viterbi processors are needed for detection and decoding. However, the proposed JVDD scheme uses only one Viterbi processor by modifying the branch metric with inter‐symbol interference information from GMSK modulation; therefore, the hardware complexity can be significantly reduced without performance degradation.