PARITY-CHECK CODES

Error performance prediction of randomly shortened and punctured LDPC codes

In this contribution, we show that the word error rate (WER) performance in the waterfall region of a randomly shortened and punctured low density parity check code can be accurately predicted from the WER performance of its finitelength mother …

Semi-analytical evaluation of concatenated RS/LDPC coding performance with finite block interleaving

Precoding for word error rate minimization of LDPC coded modulations on block fading channels

In wireless communications, the block fading (BF) channel is an important channel model. A key quality indicator in coded transmission is the word error rate (WER), which is the fraction of packets that cannot be decoded correctly at the receiver. We …

Low-density graph codes for coded cooperation on slow fading relay channels

We study Low-Density Parity-Check (LDPC) codes with iterative decoding on block-fading (BF) Relay Channels. We consider two users that employ coded cooperation, a variant of decode-and-forward with a smaller outage probability than the latter. An …

Stability outage analysis for LDPC codes

For a given channel instance and a fixed LDPC ensemble, a stability outage event is defined by the density evolution being unstable at the origin. The probability of such an event, referred to as Stability Outage Probability, is a useful lower bound …

Analysis and construction of full-diversity joint network-LDPC codes for cooperative communications

Cooperative communication is a well known technique to yield transmit diversity and network coding can increase the spectral efficiency. These two techniques can be combined to achieve a double diversity order for a maximum coding rate Rc = 2/3 on …

Universal LDPC codes for cooperative communications

Cooperative communication is a well known technique to yield transmit diversity in the case of fading channels and to increase the spectral efficiency in the case of Gaussian channels. Error-correcting codes have to be carefully designed to achieve …