Practical subchannel power controlled OFDM system under time-varying multipath channel

We evaluate the BER performance of the subchannel power controlled OFDM system considering more practical cases including the limitation in word length in subchannel power control tap-weights and the time-varying multipath channel. According to simulation results, the total required number of bits i...

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Hauptverfasser:	Hongku Kang, Wooncheol Hwang, Kiseon Kim, Yeongyoon Choi
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Bit error rate Communication system control Control system synthesis Control systems Degradation Fading Multipath channels OFDM Power control Time varying systems
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Beschreibung
Zusammenfassung:	We evaluate the BER performance of the subchannel power controlled OFDM system considering more practical cases including the limitation in word length in subchannel power control tap-weights and the time-varying multipath channel. According to simulation results, the total required number of bits is 5 for the optimal subchannel power control and the main source of the performance degradation of the subchannel power controlled OFDM system is the time-varying multipath channel.
ISSN:	1347-6890
DOI:	10.1109/WPMC.2002.1088331