Bit Interleaved Coded Modulation Using Multiple Turbo Codes
نویسندگان
چکیده
Bandwidth efficient coding schemes employing bit interleaved coded modulation and low complexity multiple turbo codes are investigated. The BER performance of these designs is shown to be superior to bit interleaved coded modulation schemes using conventional turbo codes.
منابع مشابه
Asymmetric Turbo Codes for Bit-Interleaved Coded Modulation∗
Bit interleaved coded modulation employing asymmetric turbo codes is investigated. An asymmetric turbo code uses two different constituent codes. The benefit of using different constituent codes is that they may complement each other during iterative decoding of the asymmetric turbo code. This can be visualized using the input-output extrinsic information transfer (EXIT) chart based on mutual i...
متن کاملCoded Modulation for Dpsk on Fading Channels
| Coded modulation for di erentially encoded PSK with non{coherent reception on at fading channels is considered. We derive theoretical limits on the performance and show how to design multilevel coding schemes and bit{interleaved coded modulation. Since Gray labeling is not possible for multiple symbol di erential detection and PSK constellations, bit{interleaved coded modulation exhibits seve...
متن کاملSpace–Frequency Bit–Interleaved Convolutional and Turbo Coded OFDM Systems with Simplified Iterative Approaches
In this paper, space–time bit–interleaved coded OFDM (orthogonal frequency division multiplexing) modulated systems are studied. Using multiple antennas at transmitter and receiver side, spatial diversity can be exploited with ordinary channel codes followed by an interleaver. Moreover, the combined use with OFDM modulation enable effective frequency selectivity exploitation in multipath channe...
متن کاملSpace-time coding techniques with bit-interleaved coded modulations for MIMO block-fading channels
The space-time bit-interleaved coded modulation (ST-BICM) is an efficient technique to obtain high diversity and coding gain on a block-fading MIMO channel. Its maximum-likelihood (ML) performance is computed under ideal interleaving conditions, which enables a global optimization taking into account channel coding. Thanks to a diversity upperbound derived from the Singleton bound, an appropria...
متن کاملNew Simple Evaluation of Error Probability of Bit-Interleaved Coded Modulation using the Saddlepoint Approximation
This paper presents a simple and very accurate method to evaluate the error probability of bit-interleaved coded modulation. Modelling the channel as a binaryinput continuous-output channel with a non-Gaussian transition density allows for the application of standard bounding techniques for Gaussian channels. The pairwise error probability is equal to the tail probability of a sum of random var...
متن کامل