Ordering Scheme for Sphere Decoding Based on Accumulated Probability of Reliability[J]. Acta Electronica Sinica, 2012, 40(7): 1455-1459. DOI: 10.3969/j.issn.0372-2112.2012.07.027.
The decoding order has a deep impact on the complexity of sphere detection.A new ordering scheme for sphere decoding algorithm is presented in this paper which is based on the reliability defined by the accumulated probability of the difference between symbol element and the zero forcing solution.The proposed ordering scheme takes into account the channel states
the receiver signal and the effect of the noise amplification to get the decoding order according to the probability.The simulation results show that the proposed scheme can achieve a significant complexity reduction.