OFDM中的位、音、循环前缀分配及其在家用PLC中的应用

2008 1st IFIP Wireless Days Pub Date : 2008-11-01 DOI:10.1109/WD.2008.4812844

A. Tonello, S. D'Alessandro, L. Lampe

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引用次数: 31

摘要

我们提出了在OFDM系统中，通过调整循环前缀(CP)长度以及音调和比特负载来最大化可实现的速率。我们表明，与使用持续时间等于信道的固定CP相比，获得了显着的增益。描述了CP设计的几个指标。他们在性能和复杂性之间进行权衡。考虑了单用户和多用户OFDM。给出了典型电力线通信室内信道的数值计算结果。

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Bit, tone and cyclic prefix allocation in OFDM with application to In-Home PLC

We propose to maximize achievable rate in OFDM systems via the adaptation of the cyclic prefix (CP) length jointly with tone and bit loading. We show that significant gains are obtained compared to the case of using a fixed CP with duration equal to the channel. Several metrics for the CP design are described. They tradeoff between performance and complexity. Both single user and multiuser OFDM are considered. Numerical results are reported for typical power line communication indoor channels.

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2008 1st IFIP Wireless Days

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