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Throughput of WLAN Systems with LDPC Codes and Adaptive Bit Loading

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4 Author(s)
Andrey Belogolovy ; Intel Corporation, 160 Leninsky prospekt, Saint-Petersburg 196247, Russia, ; Mikhail Yu. Lyakh ; Oleg Semenov ; Andrei Ovchinnikov

Advanced forward error correcting (FEC) and modulation scheme basing on low-density parity-check codes (LDPC) and adaptive bit loading (ABL) procedure is investigated for WLAN physical layer (PHY) of IEEE 802.11a standard. The main intention of the present paper is to study influence of the advanced PHY algorithms on the WLAN throughput under the realistic deployment conditions, for which a hardware-friendly simulation model was developed. Also, we present approaches for selection of the most suitable LDPC codes and ABL algorithms. Simulation results show performance gains of the both techniques and illustrate sensitivity of them to the deployment conditions such as channel stability, channel profile measurement precision, etc

Published in:

2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications

Date of Conference:

11-14 Sept. 2006