Turbo code for wideband CDMA

• Main Authors: Vimal Kishore Dubey, Ho, Hai Pang, Soong, Boon Hee
• Other Authors: School of Electrical and Electronic Engineering
• Format: Research Report
• Published: 2008
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
• Online Access: http://hdl.handle.net/10356/2906
• Institution: Nanyang Technological University

The third-generation (3G) mobile systems have to support not only speech but also fast Internet and multimedia communications. In the International Telecommunication Union (ITU), 3G are called the International Mobile Telecommunications - 2000 (IMT-2000) which are being designed to support wideband services, at data rate as high as 2Mb/s, with the same quality as fixed networks. Wideband direct sequence code division multiple access (W-CDMA) is emerging as the predominant wireless access technology for 3G systems. Wideband CDMA is designed to flexibly offer wideband services, such as wireless Internet services (i.e., peak rate of 384 kb/s to download information from the Web) and video transmissions (data rate up to 2 Mb/s). The focus of this project emphasizes on hardware implementation of Turbo codec that conforms to the 3G standard. The Turbo coding scheme proposed in the implementation is 8-state parallel-concatenated convolutional code (PCCC). The polynomial generators of the constituent recursive systematic convolutional (RSC) encoders are 1011 and 1101.