Trellis-Coded Complementary Code Keying for High-Rate Wireless LAN Systems
Journal
IEEE Communications Letters
Journal Volume
5
Journal Issue
5
Pages
191-193
Date Issued
2001-05
Author(s)
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.
SDGs
Type
journal article