Sphere decoding is a powerful technique, but its high and variable complexity can make the practical implementation
infeasible. In this letter, we present an adaptive system, called adaptive SD-OSIC, as a way of reducing the decoding
complexity while maintaining the error performance of conventional sphere decoding.
ITRL Proposed Adaptive SD-OSIC Algorithm
- Able to achieve a better performance compared to conventional SD algorithms.
- Quasi-constant complexity through the entire SNR range.
- Contrary to other proposed algorithms, our system reduces and improves the complexity of the conventional SD,
with little sacrifice of BER in the high SNR region.
- For low SNR values, the proposed system achieves better BER performance than the conventional
SD and OSIC algorithms.
Paper Reduction of sphere decoding complexity through an Adaptive OSIC- SD system