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4 LR-WPAN systems", IEICE Electronics Express, 2008, 5(14), 490-496, doi: 10.
The goals of Task Group 4 are to begin the development of a LR-WPAN standard IEEE 802.
4 GHz industrial, scientific and medical (ISM) band, LR-WPAN devices are intended to operate with other IEEE 802 wireless devices such as IEEE 802.
With the direct sequence spread spectrum (DSSS) technique, LR-WPAN is intended to support two physical layer options.
The data in LR-WPAN are coded into the carrier with direct sequence spread spectrum (DSSS), an inherently robust wireless communication technique improving multi-path performance and receiver sensitivity through signal processing gain (PG).
4  doesn't include the interferer's state, so the assumed distribution of receiver noise power for LR-WPAN is shown in Fig.
The communication block-diagram of a LR-WPAN relative to interferers generated by various communication systems in the 2.
However, under real environments where various wireless devices coexist, the minimum requirement of the physical layer of LR-WPAN should be more stringent than the published standard.
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