Title :
SoC for COFDM Wireless Communications: Challenges and Opportunities
Author :
Lee, Chen-Yi ; Liu, Hsuan-Yu ; Lin, Chien-Ching
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu
Abstract :
Coded orthogonal frequency division multiplexing (COFDM) technology has been widely accepted in many communication systems due to both bandwidth efficiency and robustness to channel distortion. This opens a great of opportunities for SoC society to deal with design complexity by exploiting benefits of giga-scale integration. In this paper, we´ll first review the general design concept of COFDM systems and then highlight several key issues in SoC realization. Then a system-level design flow by taking into account both performance indices and hardware complexity was introduced. Several core modules related to COFDM system were also addressed to see how better solutions can be achieved, especially for wireless applications. Finally two case studies on WLAN and OFDM-UWB were discussed to demonstrate our proposals as well as to provide some directions for further research
Keywords :
OFDM modulation; system-on-chip; ultra wideband communication; wireless LAN; COFDM technology; OFDM-UWB; channel distortion; coded orthogonal frequency division multiplexing; giga-scale integration; system level design; system-on-chip; wireless LAN; wireless communications systems; Bandwidth; Baseband; Bit error rate; Decoding; Equalizers; Frequency synchronization; Parity check codes; Wideband; Wireless LAN; Wireless communication;
Conference_Titel :
VLSI Design, Automation and Test, 2006 International Symposium on
Conference_Location :
Hsinchu
Print_ISBN :
1-4244-0179-8
Electronic_ISBN :
1-4244-0180-1
DOI :
10.1109/VDAT.2006.258125