Title :
Subcarrier based adaptive modulation in HIPERLAN/2 system
Author :
Toyserkani, Arash T. ; Naik, Siddharth ; Ayan, Joubran ; Made, Yann ; Al-Askary, Omar
Author_Institution :
Radio Commun. Syst., Stockholm, Sweden
Abstract :
The paper investigates the performance of HIPERLAN/2 (H/2) with sub-carrier based adaptive modulation, with respect to average throughput. The results obtained are compared with the case where the same modulation is used across all the subcarriers as in the current H/2. We suggest a bit loading algorithm "simple rate adaptive algorithm" (SRA) based on the criteria of maximizing the throughput. Our work displays that this bit loading scheme improves the throughput compared to the existent H/2. The cost incurred is the complexity added by the adaptive modulation scheme. However, the total complexity of the system is decreased due to simplification in channel coding.
Keywords :
adaptive codes; adaptive modulation; channel coding; wireless LAN; HIPERLAN/2 system; bit loading algorithm; channel coding; simple rate adaptive algorithm; subcarrier adaptive modulation; Bit error rate; Channel coding; Costs; Data communication; Displays; Electronic mail; Error analysis; OFDM modulation; Radio communication; Throughput;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1313187
