CCK modulation: beyond Wi-Fi |
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Authors: | Pursley MB Royster TC |
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Affiliation: | with the Dept of Electrical & Computer Engineering, Clemson University, Clemson, SC 29634 USA (e-mail: pursley@eng.clemson.edu).; |
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Abstract: | The full-rate IEEE 802.11b standard for wireless local area networks, also known as Wi-Fi, employs 256-ary complementary code keying (CCK). For applications that do not require adherence to the standard, it may be desirable to use forward error correction coding with CCK, but the bit-tosymbol mappings used in IEEE 802.11b degrade the performance of most standard binary codes. We show that a standard binary convolutional code performs much better with alternative bit mappings, and we demonstrate that chip scrambling gives additional improvement. |
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