| Summary: | 碩士 === 中原大學 === 電子工程研究所 === 95 === In July 1998 the IEEE 802.11 working group proposed the IEEE 802.11b standards, which extended the IEEE 802.11.The IEEE 802.11b adapted complementary code keying (CCK) for the high rate physical layer to deliver data at highest speed 11Mbps. Because having the uncomplicated structure, it still widely be used in indoor environment. In wireless communication, we are assailed with fading effects. Using the multiple input multiple output (MIMO) system is one method to avoid the fading effects. When using IEEE 802.11b under fading channel ,we want to use this technique to improve the performance. But MIMO system will make the system having higher complicacy, it’s not the benefit for system implementation. Because of that, we propose a new ideal about the CCK decoding which can reduce enough complicacy to recover the cost.
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