Title :
Overhead reduction in rate-adaptive MAC over OFDM-based wireless networks
Author :
Kim, Byung-Sung ; Kim, Sang Wu
Author_Institution :
Dept. of Comput. & Inf. Commun. Eng., Hongik Univ., Jochiwon
Abstract :
While many researchers have focused on bit-loading algorithm itself, proposed here is an implementation method of the bit-allocation in terms of layer-2 protocol. A novel protocol is presented to implement a bit-allocation over time-varying wireless channels by using as small an overhead as only one OFDM symbol.
Keywords :
OFDM modulation; access protocols; channel allocation; radio networks; time-varying channels; wireless channels; OFDM-based wireless networks; bit-allocation; bit-loading algorithm; overhead reduction; rate-adaptive MAC; time-varying wireless channels;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20081583
