Block Turbo Codes for Hiperlan/2 Systems: Performance Analysis
نویسندگان
چکیده
In this paper, Block Turbo Codes (BTC), that is product codes obtained from the concatenation of either two extended or two expurgated BCH codes are evaluated for the HIPERLAN/2 system. Simulations show that only expurgated BTC outperforms the performance of the Convolutional Code (CC) specified in the standard. This result is surprising since expurgated and extended BTC have same performance on the theoretical Rayleigh channel. We will explain the performance degradation of the extended BTC. The specified HIPERLAN/2 interleaver will finally be modified for this extended BTC in order to obtain the same performances as for the expurgated BCH code.
منابع مشابه
Joint Coded-Precoded OFDM with Low-Complexity Turbo-decoding
We combine error-control coding with linear precoding for flat-fading channels, as well as for wireless OFDM transmissions through frequency-selective fading channels. The performance is analyzed and compared with the standard coded system without precoding. By wedding linear precoding with conventional error-control coding, the diversity order becomes equal to the error-control code’s minimum ...
متن کاملAn approach to fault detection and correction in design of systems using of Turbo codes
We present an approach to design of fault tolerant computing systems. In this paper, a technique is employed that enable the combination of several codes, in order to obtain flexibility in the design of error correcting codes. Code combining techniques are very effective, which one of these codes are turbo codes. The Algorithm-based fault tolerance techniques that to detect errors rely on the c...
متن کاملPerformance and Design of Turbo Codes on Rayleigh Fading Channels
Fading in wireless environments is a major obstacle to reliable communications. In order to mitigate the e ects of fading, channel coding is often employed. In this thesis, the performance and design of the channel coding technique, turbo codes, [1] is examined over Rayleigh fading channels. The thesis considers coherent BPSK signaling over both time-correlated and fully-interleaved Rayleigh, s...
متن کاملStudy of Turbo Codes and Decoding in Binary Erasure Channel Based on Stopping Set Analysis
In this paper, we define a stopping set of turbo codes with the iterative decoding in the binary erasure channel. Based on the stopping set analysis, we study the block and bit erasure probabilities of turbo codes and the performance degradation of the iterative decoding against the maximum-likelihood decoding. The error floor performance of turbo codes with the iterative decoding is dominated ...
متن کاملPerformance Analysis and Design of Punctured Turbo Codes
Turbo codes, formed by the parallel concatenation of two recursive systematic convolutional component codes separated by an interleaver, have been proposed for use in a variety of wireless applications, including mobile, satellite and fixed wireless systems. Analysis of their performance requires knowledge of their transfer function, which conveys their distance properties. Using the transfer f...
متن کامل