基于分级统计最大平均功率的WBAN符号同步算法

doi:10.11959/j.issn.1000-436x.2015085

Abstract

Abstract:

The symbol timing algorithm based on maximum mean power timing is independent of carrier phase offset,and has the property of capturing timing information fast,which meets the demand of wireless body area networks (WBAN).According to IEEE 802.15.6 standard,the ordered statistic of maximum mean power timing was used to reduce the computational complexity in the symbol timing process.The theoretical analysis and simulation results shows that the proposed algorithm can achieve symbol timing within 32 symbols and reduce the computational complexity by ninety percent at most compared to the original maximum mean power algorithm.The fast synchronization and car-rier-independence property of the proposed algorithm can also make room for carrier-offset recovery and frame synchro-nization.

Key words: symbol timing, maximum mean power timing, ordered statistic, low-complexity, wireless body area networks

HIYu C,HENLan C,VChao L. Symbol timing recovery algorithm based on ordered statistic of maximum mean power timing for WBAN[J]. Journal on Communications, 2015, 36(5): 81-88.

Figures/Tables 9

References 36

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算法	一帧内乘法次数	备注
Gardner算法	30 000	定时误差估计2NL次+插值重建NL次（至少）
O＆M算法	40 000	定时误差估计NL次(设取角度运算近似为二次多项式)+插值NL次(至少)
原最大平均功率算法	512	2NL
本文分级统计算法	204	使用分级参数1

Symbol timing recovery algorithm based on ordered statistic of maximum mean power timing for WBAN

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