Rate-compatible punctured low-density parity-check codes for ultra wide band systems

In this paper we treat rate-compatible punctured low-density parity-check (RCP-LDPC) codes. We show how a mother code can be efficiently punctured to achieve good performance over a wide range of rates and discuss the design of a mother code. While this approach can be applied to virtually any time-varying channel, we apply it to the ultra wide band (UWB) channel, e.g. 802.15.3a, and we show that RCP-LDPC codes perform well as compared to a selection of fixed rate unpunctured codes. They reduce the implementation complexity and enable the use of retransmission protocols based on incremental redundancy to increase the throughput