Title :
MultiBand-OFDM System with Concatenated Coding Scheme
Author :
Sato, Hiroyuki ; Ohtsuki, Tomoaki ; Kashima, Tsuyoshi ; Jarot, Sigit
Author_Institution :
Graduate Sch. of Sci. & Technol., Tokyo Sci. Univ.
Abstract :
Among new technologies, ultra wideband (UWB) is gathering interests as a short-reach transmission system. At present, as one of the prevailing UWB systems, the multiband-orthogonal frequency division multiplexing (MB-OFDM) system has attracted much attention where convolutional code (CC) is used. The main contribution of this paper is to evaluate the bit error rate (BER) and decoding complexity performances of MB-OFDM with concatenated coding scheme and dual carrier modulation (DCM) on IEEE 802.15.3a UWB multipath channel model. We employ the CC for the inner code and the Reed Solomon (RS) code for the outer code in the concatenated coding scheme. From the results of our computer simulation, we show good combination of coding rates in the concatenated coding scheme at the data rates of about 320, 400 480 Mbps. We also show that MB-OFDM with concatenated coding scheme can achieve the better BER than MB-OFDM with only CC. In addition, we show that the BER improvement of MB-OFDM with concatenated coding scheme over that with only CC becomes larger as the data rate becomes higher.
Keywords :
OFDM modulation; Reed-Solomon codes; concatenated codes; convolutional codes; decoding; error statistics; multipath channels; personal area networks; ultra wideband communication; BER; IEEE 802.15.3a UWB multipath channel model; MB-OFDM; Reed Solomon code; bit error rate; concatenated coding scheme; convolutional code; decoding complexity performances; dual carrier modulation; multiband-OFDM system; orthogonal frequency division multiplexing; Bit error rate; Concatenated codes; Convolutional codes; Decoding; Frequency division multiplexing; Modulation coding; Multipath channels; Performance evaluation; Reed-Solomon codes; Ultra wideband technology;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Conference_Location :
Dublin
Print_ISBN :
1-4244-0266-2
DOI :
10.1109/VETECS.2007.447