Wireless LAN White Papers
Increasing Data Rates Through Iterative Coding and Antenna Diversity in OFDM-Based Wireless Communication
Overview Transmitter diversity and coding techniques can be used in high date-rate wireless communications with Orthogonal Frequency Division Multiplexing (OFDM) to improve the performance. This paper proposes 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, the paper applies the Low-Density Parity Check (LDPC) code and introduces transmitter/receiver diversity to the HYPERLAN/2 system. This paper observes 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.
| Publisher | University of Minnesota | File Format | |
|---|---|---|---|
| Date Published | October 2001 | ||
| Format | White Papers | ||
| Topics | |||
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