摘要
The negative impact on communication performance in wireless multi-hop communication net-work caused by limited bandwidth,high bit eror rate （BER）,fading,noise and interference is alleviated by an adaptive filtering game based on frequency subbands selection and predetemined threshold.Such threshold is being obtained in Gaussian and multipath fading channel according to the frequency-matching principle and BER performance.The dynamic selection of subbands will obtain high use efficiency without the help of frequency hopping,and propound a new thought to improve band limited communication for wireless multi-hop communication network.The effectiveness of the adaptive filtering method has been verified by interleaving spread spectrum orthogonal frequency division multiplexing （ISS-OFDM） in different interference conditions,and the simulating results based on network simulator 2 （NS2） indicate that system BER can be improved greatly.
The negative impact on communication performance in wireless multi-hop communication network caused by limited bandwidth,high bit error rate(BER),fading,noise and interference is alleviated by an adaptive filtering game based on frequency subbands selection and predetermined threshold.Such threshold is being obtained in Gaussian and multipath fading channel according to the frequency-matching principle and BER performance.The dynamic selection of subbands will obtain high use efficiency without the help of frequency hopping,and propound a new thought to improve band limited communication for wireless multi-hop communication network.The effectiveness of the adaptive filtering method has been verified by interleaving spread spectrum orthogonal frequency division multiplexing(ISS-OFDM) in different interference conditions,and the simulating results based on network simulator 2(NS2) indicate that system BER can be improved greatly.
基金
Supported by the National Nature Science Foundation of China(No.61302074)
the Specialized Research Fund for the Doctoral Program of Higher Education(No.20122301120004)
the Natural Science Foundation of Heilongjiang Province(No.QC2013C061)
Research Foundation of Education Bureau of Heilongjiang Province(No.12531480)
