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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Analysis and Design of Punctured Rate-1/2 Turbo Codes Exhibiting Low Error Floors
AU - Chatzigeorgiou, Ioannis
AU - Rodrigues, Miguel R. D.
AU - Wassell, Ian J.
AU - Carrasco, Rolando A.
PY - 2009/8
Y1 - 2009/8
N2 - The objective of this paper is two-fold. Initially, we present an analytic technique to rapidly evaluate an approximation to the union bound on the bit error probability of turbo codes. This technique exploits the most significant terms of the union bound, which can be calculated straightforwardly by considering the properties of the constituent convolutional encoders. Subsequently, we use the bound approximation to demonstrate that specific punctured rate-1/2 turbo codes can achieve a lower error floor than that of their rate-1/3 parent codes. In particular, we propose pseudo-random puncturing as a means of improving the bandwidth efficiency of a turbo code and simultaneously lowering its error floor.
AB - The objective of this paper is two-fold. Initially, we present an analytic technique to rapidly evaluate an approximation to the union bound on the bit error probability of turbo codes. This technique exploits the most significant terms of the union bound, which can be calculated straightforwardly by considering the properties of the constituent convolutional encoders. Subsequently, we use the bound approximation to demonstrate that specific punctured rate-1/2 turbo codes can achieve a lower error floor than that of their rate-1/3 parent codes. In particular, we propose pseudo-random puncturing as a means of improving the bandwidth efficiency of a turbo code and simultaneously lowering its error floor.
KW - Turbo codes
KW - Puncturing
KW - Transfer function
KW - Performance evaluation
KW - Error floor
KW - CONVOLUTIONAL-CODES
KW - SEQUENCES
KW - CHANNELS
U2 - 10.1109/JSAC.2009.090812
DO - 10.1109/JSAC.2009.090812
M3 - Journal article
VL - 27
SP - 944
EP - 953
JO - IEEE Journal on Selected Areas in Communications
JF - IEEE Journal on Selected Areas in Communications
SN - 0733-8716
IS - 6
ER -