Open AccessSimple non‐coherent detection scheme for IEEE 802.15.4 BPSK receivers
Author(s) -
Zhang Gaoyuan,
Wang Dan,
Song Liang,
Wu Honghai,
Xie Ping,
Ji Baofeng,
Wen Hong
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2017.0196
Subject(s) - phase shift keying , frequency offset , offset (computer science) , computer science , algorithm , binary number , carrier frequency offset , electronic engineering , orthogonal frequency division multiplexing , a priori and a posteriori , bit error rate , mathematics , telecommunications , decoding methods , engineering , philosophy , epistemology , channel (broadcasting) , arithmetic , programming language
A novel, non‐coherent bit‐level detection scheme is proposed to compensate for the frequency offset efficiently in IEEE 802.15.4 binary phase shift keying (BPSK) receivers. In the proposed scheme, the frequency‐offset estimation process only requires comparison, division, and addition operations. The proposed scheme first creates a suitable estimation‐region division, thus the mathematical approximation tan −1 ( x ) ≈ x is efficiently utilised to simplify the conventional optimal estimation. The frequency offset and signal‐to‐noise ratio conditions do not need a priori knowledge. Simulations demonstrate that the proposed scheme is as reliable as the conventional optimal algorithm, but with a significant reduction of complexity.