A new SISO algorithm with application to turbo equalization
<|reference_start|>A new SISO algorithm with application to turbo equalization: In this paper we propose a new soft-input soft-output equalization algorithm, offering very good performance/complexity tradeoffs. It follows the structure of the BCJR algorithm, but dynamically constructs a simplified trellis during the forward recursion. In each trellis section, only the M states with the strongest forward metric are preserved, similar to the M-BCJR algorithm. Unlike the M-BCJR, however, the remaining states are not deleted, but rather merged into the surviving states. The new algorithm compares favorably with the reduced-state BCJR algorithm, offering better performance and more flexibility, particularly for systems with higher order modulations.<|reference_end|>
@article{sikora2005a,
    title={A new SISO algorithm with application to turbo equalization},
    author={Marcin Sikora and Daniel J. Costello Jr},
    journal={arXiv preprint arXiv:cs/0504017},
    year={2005},
    archivePrefix={arXiv},
    eprint={cs/0504017},
    primaryClass={cs.IT math.IT}
}