Title :
Trellis lengths and truncation depths for TBCC decoders in mobile WiMAX
Author :
Liu, Yu-Sun ; Tsai, Yao-Yu ; Lee, Wen-Ta
Author_Institution :
Nat. Taipei Univ. of Technol., Taipei, Taiwan
Abstract :
The circular decoding algorithm is a simple and effective decoding method for tail-biting convolutional codes, which are the mandatory error-correcting codes in the mobile WiMAX standard. The performance of the circular decoding algorithm is evaluated for mobile WiMAX systems under different choices of truncation depth and decoding trellis length. A rule of thumb for the choice of the trellis length is also obtained.
Keywords :
WiMax; convolutional codes; decoding; error correction codes; mobile communication; trellis codes; TBCC decoders; Trellis lengths; circular decoding algorithm; error-correcting codes; mobile WiMAX standard; mobile WiMAX systems; tail-biting convolutional codes; truncation depths; Code standards; Communication standards; Convolutional codes; Decoding; Delay; Error correction codes; Signal processing algorithms; Thumb; Viterbi algorithm; WiMAX;
Conference_Titel :
Intelligent Signal Processing and Communication Systems, 2009. ISPACS 2009. International Symposium on
Conference_Location :
Kanazawa
Print_ISBN :
978-1-4244-5015-2
Electronic_ISBN :
978-1-4244-5016-9
DOI :
10.1109/ISPACS.2009.5383916
