Water filling algorithm for the throughput improvement of FH-OFDM system

Authors:
Xiupei Zhang;Heung-Gyoon Ryu
Affiliations:
Department of Electronic Engineering, Chungbuk National University, CheongJu, Korea;Department of Electronic Engineering, Chungbuk National University, CheongJu, Korea
Venue:
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 1
Year:
2009

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Abstract

In order to improve the throughput, the water filling algorithm is considered in the FH- OFDM (frequency hopping - orthogonal frequency division multiplexing) system which combines frequency hopping technique and OFDM technique. This system may be seriously degraded in the multipath and jamming channel. Adaptive bit loading technique using water filling[1] algorithm is used in FH-OFDM system. Via the computer simulation, it is confirmed that FH-OFDM system using the adaptive bit loading technique shows better HER performance and system throughput than the ordinary FH-OFDM system in the multipath propagation and jamming the environment.