Error Rate Analysis of Multiband of CDM UWB System in UWB fading Channel
نویسندگان
چکیده
Abstract— Multiband orthogonal frequency division multiplexing (MB-OFDM) ultra wide band (UWB) system become promising technique for high data rate due to its large number of advantage over single band UWB system, but it suffer from coherent frequency diversity problem due to OFDM. In this paper we have proposed, multiband orthogonal frequency and code division multiplexing (MB-OFCDM) UWB system by introducing spreading to OFDM in order to provide frequency diversity. This paper presents the basic structure and operation of the MB-OFCDM system, and evaluates the bit error rate (BER) performance of MB-OFDM and MB-OFCDM system under UWB indoor multi-path channel model (IEEE 802.15.SG3a, 2003). It is observed that, MB-OFCDM system provides 2dB performance improvement as compared to MB-OFDM system in terms of BER.
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تاریخ انتشار 2014