Title :
CDSP: an application-specific digital signal processor for third generation wireless communications
Author :
Tseng, Po-Chih ; Chen, Chi-Kuang ; Chen, Liang-Gee
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
8/1/2001 12:00:00 AM
Abstract :
We present an application-specific digital signal processor (DSP) for third generation wireless communications. The processor architecture and instruction set of proposed DSP are specially designed for the WCDMA system, where the Viterbi decoding and complex arithmetic are enhanced. These key features make the proposed DSP consume much lower processor MIPS and therefore outperform prior arts in terms of several crucial operations of wireless applications. A prototyping chip has been implemented by using cell-based design approach under TSMC 0.35 μm CMOS IP4M technology. At 3.3 V supply voltage, it can operate up to 40 MHz
Keywords :
CMOS digital integrated circuits; Viterbi decoding; application specific integrated circuits; digital signal processing chips; land mobile radio; parallel architectures; 0.35 mum; 3.3 V; 40 MHz; CDSP; MIPS; SIMD; TSMC CMOS IP4M technology; Viterbi decoding; WCDMA system; application-specific DSP; application-specific digital signal processor; cell-based design; complex arithmetic; instruction set; processor architecture; prototyping chip; supply voltage; third generation wireless communications; wireless applications; Arithmetic; CMOS technology; Decoding; Digital signal processing; Digital signal processing chips; Digital signal processors; Multiaccess communication; Signal generators; Viterbi algorithm; Wireless communication;
Journal_Title :
Consumer Electronics, IEEE Transactions on
