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At present, IEEE802.11 has three high-speed PHY specifications: 802.11b, 802.11a, and 802.11g. Although 802.11b/g has 11 channels in the 2.4 GHz unlicensed band, there are only 3 non-overlapping channels. The limited number of usable channels may have a significant impact on throughput in 802.11b/g dense wireless local area networks and wireless personal(More)
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