Self-encoded TH-PPM UWB system with iterative detection

In this paper, we apply iterative detection to typical time hopping (TH) pulse position modulation (PPM) ultra wideband (UWB) spread spectrum systems. Unlike a typical TH-PPM UWB which employs repetition code, the proposed system uses self-encoded code which is updated by user information itself. To take advantage of self-encoded spread spectrum, we apply iterative detection to the TH-PPM UWB system. By means of simulation, we will investigate the bit error rate (BER) performance of the proposed system in additive white Gaussian noise (AWGN) channels and also fading channels. We observe a significant BER performance improvement over conventional TH-PPM UWB systems

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