CCK modulation: beyond Wi-Fi

• Published in: IEEE communications letters Vol. 13; no. 1; pp. 31 - 33
• Main Authors: Pursley, M.B., Royster, T.C.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-01-2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Adhesion; Applied sciences; Autocorrelation; Bandwidth; Binary codes; Business and industry local networks; Code standards; Coding; Coding, codes; Complementary code key; Computer networks; Convolutional codes; Degradation; error-control coding; Exact sciences and technology; Forward error correction; IEEE 802.11b; Information, signal and communications theory; Mapping; Modulation; Multiaccess communication; Networks and services in france and abroad; Pulse modulation; Signal and communications theory; Telecommunications; Telecommunications and information theory; Teleprocessing networks. Isdn; Wi-Fi; Wireless communication; Wireless LAN; Wireless LAN; IEEE 802.11b; Convolutional code; Wi-Fi; Wireless telecommunication; Performance standard; Mapping; Jamming; Binary code; Complementary code key; Complementary code keying; Forward error correction; error-control coding; Error correcting code; IEEE standards
• ISSN: 1089-7798; 1558-2558
• DOI: 10.1109/LCOMM.2009.080740

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-to-symbol 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.