On the Design of Space-Time-Frequency Coding with Low Peak-to-Average Power Ratio
碩士 === 國立交通大學 === 電信工程系所 === 95 === With the fast development of personal communications and the increasing need of multi-media messaging, the major topic for future wireless communications will be to effectively enhance the capability of radio access to provide excellent spectral efficiency and sys...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2007
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| Online Access: | http://ndltd.ncl.edu.tw/handle/09030233716095125040 |
| Summary: | 碩士 === 國立交通大學 === 電信工程系所 === 95 === With the fast development of personal communications and the increasing need of multi-media messaging, the major topic for future wireless communications will be to effectively enhance the capability of radio access to provide excellent spectral efficiency and system capacity. Recently, MIMO-OFDM systems are mostly used to provide high data rate transmission and multi-media services. Thus, the goal of the thesis is to combine the STF coding for MIMO-OFDM systems and establish the related theoretical fundamentals. Moreover, we also consider the PAPR problem in OFDM systems. The proposed STF codes not only can achieve the maximum diversity gain to optimize the transmission quality but also can mitigate the high PAPR of OFDM signals to avoid the high cost amplifiers in the transmitter and receiver.
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