13 years 4 months ago
An Exit-Chart Aided Design Procedure for Near-Capacity N-Component Parallel Concatenated Codes
1 Shannon's channel capacity specifies the upper bound on the amount of bits per channel use. In this paper, we explicitly demonstrate that twin-component turbo codes suffer f...
Hong Chen, Robert G. Maunder, Lajos Hanzo
100views more  TVLSI 2002»
13 years 6 months ago
Architectural strategies for low-power VLSI turbo decoders
Abstract--The use of "turbo codes" has been proposed for several applications, including the development of wireless systems, where highly reliable transmission is requir...
Guido Masera, M. Mazza, Gianluca Piccinini, F. Vig...
87views more  TIT 2002»
13 years 6 months ago
Coding theorems for turbo code ensembles
This paper is devoted to a Shannon-theoretic study of turbo codes. We prove that ensembles of parallel and serial turbo codes are "good" in the following sense. For a tur...
Hui Jin, Robert J. McEliece
106views Education» more  ETT 2000»
13 years 6 months ago
On Union Bounds for Random Serially Concatenated Turbo Codes with Maximum Likelihood Decoding
The input-output weight enumeration (distribution) function of the ensemble of serially concatenated turbo codes is derived, where the ensemble is generated by a uniform choice ov...
Igal Sason, Shlomo Shamai
73views more  TIT 2008»
13 years 6 months ago
Turbo Codes in Binary Erasure Channel
In this correspondence, the stopping set of turbo codes with iterative decoding in the binary erasure channel is defined. Block and bit erasure probabilities of turbo codes are stu...
Jeong Woo Lee, Rüdiger L. Urbanke, Richard E....
13 years 6 months ago
On Multiple Slice Turbo Codes
: The main problem concerning the hardware implementation of turbo codes is the lack of parallelism in the MAP-based decoding algorithm. This paper proposes to overcome this proble...
David Gnaedig, Emmanuel Boutillon, Michel Jé...
85views Education» more  CORR 2008»
13 years 6 months ago
Optimal Transmission Strategy and Explicit Capacity Region for Broadcast Z Channels
This paper provides an explicit expression for the capacity region of the two-user broadcast Z channel and proves that the optimal boundary can be achieved by independent encoding...
Bike Xie, Miguel Griot, Andres I. Vila Casado, Ric...
84views Hardware» more  ISLPED 1998»
13 years 10 months ago
Low power architecture of the soft-output Viterbi algorithm
CT This paper investigates the low power implementation issues of the soft-output Viterbi algorithm (SOVA), a building block for turbo codes. By briefly explaining the theory of t...
David Garrett, Mircea R. Stan
130views Multimedia» more  ICMCS 2007»
14 years 24 days ago
Wyner-Ziv Video Coding Based on Turbo Codes Exploiting Perfect Knowledge of Parity Bits
In a Wyner-Ziv video coding system based on turbo codes, parity bits are generated for a Wyner-Ziv frame and transmitted to the decoder. In this context of distributed source codi...
Hu Chen, Eckehard G. Steinbach
142views Communications» more  ICC 2007»
14 years 24 days ago
Turbo Codes Based Image Transmission for Channels with Both Random Errors and Packet Loss
Abstract— In this paper, we propose an unequal error protection (UEP) framework for progressive image transmission over wireless networks with both random errors and packet loss....
Lei Yao, Lei Cao