超声波透金属通信中子载波快速筛选比特填充算法

doi:10.11959/j.issn.1000-436x.2020228

Abstract

Abstract:

Aiming at the high complexity of the greedy bit-filling algorithm,a bit-filling algorithm for fast subcarrier-selecting used in ultrasonic through-metal communication was proposed.The approximate expression for the BER increment,which was used as the basis for selecting subcarriers in the greedy bit-filling algorithm,was derived by the BER approximation formula and Taylor formula.The subcarrier was selected first and then its BER was calculated.Therefore,it was unnecessary for the greedy bit-filling algorithm to calculate new BER of all subcarriers.The simulation results show that the proposed algorithm can achieve nearly the same data rate as the greedy bit-filling algorithm and save the BER calculation of about $\frac{3}{4}$ subcarriers,greatly reducing the amount of calculation.

Key words: ultrasound, through-metal communication, bit-filling algorithm, OFDM

CLC Number:

TN92

Linsen XU,Wei YANG,Hongxian TIAN,Tao WU. Bit-filling algorithm for fast subcarrier-selecting in ultrasonic through-metal communication[J]. Journal on Communications, 2020, 41(11): 30-39.

Figures/Tables 9

References 23

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