Title :
Variable data rate Viterbi decoder with modified LOVA algorithm
Author :
Czaja, S. ; Robertson, J.
Author_Institution :
Nokia Mobile Phones, San Diego, CA, USA
Abstract :
This paper describes the implementation of a Viterbi decoder with a modified list-of-two List Output Viterbi Algorithm (LOVA) which is used to decode variable data rate frames in Code Division Multiple Access (CDMA) mobile stations. It performs the decoding of convolutional code k=9, rate=1/2 for fall, half, quarter, and eighth data rate frames. This Viterbi decoder is a part of a CDMA base-band processor used in an IS-95 cellular and Personal Communication System (PCS) mobile terminal
Keywords :
Viterbi decoding; code division multiple access; convolutional codes; land mobile radio; variable rate codes; CDMA base-band processor; IS-95 cellular system; LOVA; Personal Communication System; Viterbi decoder; convolutional code; list output Viterbi algorithm; mobile terminal; variable data rate frames; Convolutional codes; Costs; Cyclic redundancy check; Decoding; Error analysis; Multiaccess communication; Quantization; Radio transmitters; Receivers; Viterbi algorithm;
Conference_Titel :
Microelectronics and VLSI, 1995. TENCON '95., IEEE Region 10 International Conference on
Print_ISBN :
0-7803-2624-5
DOI :
10.1109/TENCON.1995.496443
