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2010•Jiangsu Electrical EngineeringRequires access

Research on Low-voltage PLC Based on Multicarrier Spreading Spectrum Technique

YU Xiang-bing

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Abstract

To resolve the problem of the frequency selective fading and ISI caused by data transmission in channel,this study proposes one communication method in low-voltage power line based on multicarrier spreading spectrum technique(researches on multicarrier spreading spectrum technique).According to the special structure of Multicarrier Direct Sequence Code Division Multiple Access(MC-DS-CDMA,) system,this study analyses the relation of parameters configure and resumable path numbers,and the performance of system in different parameters configure and multiuser.By the simulating and comparing of the same bandwidth and measure arithmetic at last,it can obtain better performance than the direct sequence CDMA(DS-CDMA,Direct Sequence Code Division Multiple Access) and greatly promote the capacity of anti-MAI and anti-ISI in the process of transmission.

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What this paper is about

To resolve the problem of the frequency selective fading and ISI caused by data transmission in channel,this study proposes one communication method in low-voltage power line based on multicarrier spreading spectrum technique(researches on multicarrier spreading spectrum technique).According to the special structure of Multicarrier Direct Sequence Code Division Multiple Access(MC-DS-CDMA,) system,this study analyses the relation of parameters configure and resumable path numbers,and the performance of system in different parameters configure and multiuser.By the simulating and comparing of the same bandwidth and measure arithmetic at last,it can obtain better performance than the direct sequence CDMA(DS-CDMA,Direct Sequence Code Division Multiple Access) and greatly promote the capacity of anti-MAI and anti-ISI in the process of transmission.

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Available abstract

To resolve the problem of the frequency selective fading and ISI caused by data transmission in channel,this study proposes one communication method in low-voltage power line based on multicarrier spreading spectrum technique(researches on multicarrier spreading spectrum technique).According to the special structure of Multicarrier Direct Sequence Code Division Multiple Access(MC-DS-CDMA,) system,this study analyses the relation of parameters configure and resumable path numbers,and the performance of system in different parameters configure and multiuser.By the simulating and comparing of the same bandwidth and measure arithmetic at last,it can obtain better performance than the direct sequence CDMA(DS-CDMA,Direct Sequence Code Division Multiple Access) and greatly promote the capacity of anti-MAI and anti-ISI in the process of transmission.

Key concepts: Code division multiple access, Spread spectrum, Electronic engineering, Direct-sequence spread spectrum, Fading, Computer science, Bandwidth (computing), Transmission (telecommunications)

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