Maximum likelihood detection apparatus and method in a wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsEun-Seok Ko, Yung-Soo Kim, Myeon-Kyun Cho, In-Soo Hwang, Tak-Ki Yu
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Abstract
A Maximum Likelihood (ML) detection apparatus and method in a wireless communication system are provided, in which a Euclidean distance are calculated using at least one of channel matrix information, noise power information and modulation order information of each stream, Pairwise Error Rate (PER) are calculated using the Euclidean distance, an error probability of the each stream is calculated using the PER, the error probability of the each stream is ordered and sorted, and ML detection is performed using a result of the ordering and sorting.
Claims16
A Maximum Likelihood (ML) detection method in a wireless communication system, comprising:
- calculating a Euclidean distance using at least one of channel matrix information, noise power information and modulation order information of each stream;
- calculating Pairwise Error Rate (PER) using the Euclidean distance;
- calculating an error probability of the each stream using the PER;
- ordering and sorting the error probability of the each stream;
- and
- performing ML detection using a result of the ordering and sorting.
A Maximum Likelihood (ML) detection method in a wireless communication system, comprising:
- calculating a Signal-to-Noise Ratio (SNR) of each stream using at least one of channel matrix information, noise power information and modulation order information of the each stream;
- calculating an error probability of the each stream using the SNR;
- ordering and sorting the error probability of the each stream;
- and
- performing ML detection using a result of the ordering and sorting.
A Maximum Likelihood (ML) detection apparatus in a wireless communication system, comprising:
- a Euclidean distance calculator for calculating a Euclidean distance using at least one of channel matrix information, noise power information and modulation order information of each stream;
- a Pairwise Error Rate (PER) calculator for calculating a PER using the Euclidean distance;
- a stream error probability calculator for calculating an error probability of the each stream using the PER;
- and
- an order and sorter for ordering and sorting the error probability of the each stream.
A Maximum Likelihood (ML) detection apparatus in a wireless communication system, comprising:
- a Signal-to-Noise Ratio (SNR) calculator for calculating a SNR of each stream using at least one of channel matrix information, noise power information and modulation order information of the each stream;
- a stream error probability calculator for calculating an error probability of the each stream using the SNR;
- and
- an order and sorter for ordering and sorting the error probability of the each stream.
Dependencies are inferred from the claim text.