With the drastic increase in the number of users,the existing wireless resources have become unsustainable.Therefore,the reactivation of Power Line Communication(PLC)has attracted the attention of major research institutes and industries.The development of PLC has been slow due to the complexity of the channel environment and the complexity and high cost of existing processing solutions.The most extensive work has been done on impulse noise,and it is particularly important to achieve robustness of data transmission against impulse noise at low cost.Firstly,the mainstream noise in PLC environment and its classification are introduced in this paper,and then the Differential Chaos Shift Keying(DCSK)and M-ary DCSK(MDCSK)modulation techniques with low cost and low complexity are described.The characteristics of this system in PLCs are presented and analysed,as well as the advantages and improvements that exist for various types of impulse noise.Secondly,some relevant new coding and modulation schemes are introduced in order to improve the transmission quality in band-limited environments.The results show that these optimisations significantly improve the system performance.Subsequently,modulation and coded modulation transmission optimisation schemes for PLC overall channel characteristics system parameters will be a hot topic for future work.
关键词
差分混沌键控/电力线通信/脉冲噪声/编码调制
Key words
Differential Chaos Shift Keying(DCSK)/Power Line Communication(PLC)/Impulsive noise/Coded modulation
维普
万方数据