Dirty paper coding transmission and its application
Date Issued
2005
Date
2005
Author(s)
Liu, Hsuan-Tien
DOI
en-US
Abstract
The dirty paper channel is a channel model with known interference at the transmitter. It has been proven that the channel model can achieve the clean capacity. In the thesis we study the dirty paper coding (DPC) schemes. A straightforward coding scheme is Tomlinson-Harashima precoding (TH precoding). Though it is a simple scheme, it suffers modulo, power, and shaping losses. In order to rocover the losses, high-dimensional precoding schemes including advanced trellis precoding (ATP) and nested lattices precoding are developed. For wireless channels, the use of QR decomposition makes each subchannel become a dirty paper channel. Therefore, dirty paper coding schemes can be applied in order to avoid clipping. Comparing QR modulation using DPC and orthogonal frequency division multiplexing (OFDM), the performance of OFDM is better than QR modulation using DPC at low data rate. On the contrary, QR modulation using DPC is better at high data rate.
Subjects
髒紙編碼
Dirty paper coding
lattice precoding
Tomlinson-Harashima precoding
trellis shaping
trellis precoding
nested lattices precoding
multicarrier modulation
discrete multitone
orthogonal frequency division multiplexing
QR decomposition
Type
thesis
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