High speed turbo TCM coded OFDM system for UWB channels

Author

Wang, Yanxia ; Yang, Libo ; Wei, Lei

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Central Florida, Orlando, FL

fYear

2005

fDate

4-9 Sept. 2005

Firstpage

1150

Lastpage

1150

Abstract

One of UWB proposal in IEEE P802.15 WPAN project is to use OFDM system and punctured convolutional codes for UWB channels supporting data rate up to 480 Mb/s. We apply a TTCM encoder to examine the possible improvement for UWB/OFDM. We construct punctured parity-concatenated trellis codes in which a TCM code is used as the inner code and a simple parity-check code is used as the outer code. The bit MAP algorithm is used in iterative decoding. The code performance is examined when applied to OFDM systems in UWB channel environments. The study shows that the system can offer much higher spectral efficiency up to 1 Gbps over UWB channel

Keywords

OFDM modulation; concatenated codes; convolutional codes; iterative decoding; multipath channels; parity check codes; personal area networks; trellis coded modulation; turbo codes; ultra wideband communication; IEEE P802.15 WPAN project; UWB channels; bit MAP algorithm; high speed turbo TCM coded OFDM system; iterative decoding; parity-check code; punctured convolutional codes; punctured parity-concatenated trellis codes; Bit error rate; Computer vision; Concatenated codes; Convolutional codes; Iterative decoding; Modulation coding; OFDM modulation; Parity check codes; Proposals; Repeaters;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2005. ISIT 2005. Proceedings. International Symposium on

Conference_Location

Adelaide, SA

Print_ISBN

0-7803-9151-9

Type

conf

DOI

10.1109/ISIT.2005.1523520

Filename

1523520