Title :
Performance analysis of turbo codes
Author :
Divsalar, D. ; Dolinar, S. ; McEliece, R.J. ; Pollara, F.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
We apply transfer function bounding techniques to obtain upper bounds on the bit error rate for maximum likelihood decoding of turbo codes constructed with random permutations. These techniques are applied to two turbo codes with constraint length 3 and later extended to other codes. The performance predicted by these bounds is compared with simulation results. The bounds are useful in estimating the “error floor” that is difficult to measure by simulation, and they provide insights on how to lower this floor. More refined bounds are needed for accurate performance measures at lower signal-to-noise ratios
Keywords :
codes; error statistics; maximum likelihood decoding; transfer functions; bit error rate; constraint length; error floor estimation; maximum likelihood decoding; performance analysis; performance measures; random permutations; signal to noise ratio; simulation results; transfer function bounding techniques; turbo codes; upper bounds; Bit error rate; Convolutional codes; Error analysis; Iterative decoding; Laboratories; Maximum likelihood decoding; Performance analysis; Propulsion; Transfer functions; Turbo codes;
Conference_Titel :
Military Communications Conference, 1995. MILCOM '95, Conference Record, IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-2489-7
DOI :
10.1109/MILCOM.1995.483278
