Title :
Trellis-coded complementary code keying for high-rate wireless LAN systems
Author :
Chiueh, Tzi-Dar ; Li, Shu-Mei
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
5/1/2001 12:00:00 AM
Abstract :
In high-rate wireless LAN, complementary code keying (CCK) is adopted in the IEEE 802.11b standard to support data rates up to 11 Mbps, much higher than the 2-Mbps data rate in the previous wireless LAN standard. Due to less-than-ideal characteristics of the CCK codewords, the CCK performs quite poorly in large-delay-spread multipath channels. In this paper, a new modulation scheme that combines the trellis coding with the CCK modulation is proposed. This scheme is shown, through simulation, to achieve much better error rate performance in medium-to-large channel delay spread environments.
Keywords :
IEEE standards; delays; modulation coding; multipath channels; telecommunication standards; trellis codes; wireless LAN; 11 Mbit/s; IEEE 802.11b standard; channel delay; data rates; error rate performance; high-rate wireless LAN systems; large-delay-spread multipath channels; simulation; trellis coding; trellis-coded complementary code keying; wireless LAN standard; Bit rate; Code standards; Delay; Error analysis; Modulation coding; Multiaccess communication; Multipath channels; Physical layer; Spread spectrum communication; Wireless LAN;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.922756
