Title :
Analysis of Circular Buffer Rate Matching for LTE Turbo Code
Author :
Cheng, Jung-Fu Thomas ; Nimbalker, Ajit ; Blankenship, Yufei ; Classon, Brian ; Blankenship, T. Keith
Author_Institution :
Ericsson Res., Research Triangle Park, NC
Abstract :
This paper discusses circular buffer rate matching (CBRM) algorithms for the turbo code in the long term evolution (LTE) of the WCDMA-based air interface. To enhance performance at high code rates, systematic bit puncturing is incorporated in conjunction with the CBRM. The RM algorithm is further optimized based on the algebraic properties of the QPP interleavers and the 8-state recursive systematic convolutional code of the LTE turbo code.
Keywords :
broadband networks; code division multiple access; convolutional codes; turbo codes; 8-state recursive systematic convolutional code; CBRM; LTE turbo code; QPP interleavers; WCDMA-based air interface; circular buffer rate matching; code division multiple access; long term evolution codes; Automatic repeat request; Channel coding; Convolutional codes; Delay; Long Term Evolution; Modulation coding; Multiaccess communication; OFDM modulation; Tail; Turbo codes;
Conference_Titel :
Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th
Conference_Location :
Calgary, BC
Print_ISBN :
978-1-4244-1721-6
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2008.162
