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Increasing data rates through iterative coding and antenna diversity in OFDM-based wireless communication

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2 Author(s)
Yong Li ; Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA ; Jaekyun Moon

Transmitter diversity and coding techniques can be used in high data-rate wireless communications with orthogonal frequency division multiplexing (OFDM) to improve the performance. In this paper, we propose the use of QAM modulations with the constellation size larger than the currently used modulations in HYPERLAN/2, in order to achieve higher spectrum efficiency and data rate. To compensate for the performance loss associated with an extended constellation, we apply the low-density parity check (LDPC) code and introduce transmitter/receiver diversity to the HYPERLAN/2 system. We observe that the LDPC code shows better fading-resistant and error-correcting capabilities than the convolutional code, and the performance loss is completely compensated with the use of diversity techniques

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Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE  (Volume:5 )

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