An Improved Algorithm of Maximum Likelihood Receiver for Overlapped Alamouti Codes
Ming-ru JIA · Radio and communications technology · 2010
An improved ML detection algorithm is proposed to overcome the disadvantage of OAC that decoding complexity is too high.The characteristics that the equivalent channel matrix has part of orthogonality are used to split the equivalent channel matrix into two mutually orthogonal sub-equivalent channel matrices.It makes the decoding of each symbol group may respectively decode two short packets,which reduces the complexity of ML decoding receiver.The proposed algorithm can greatly reduce the computational complexity,and has the same performance as the ML detection.So it can overcome the defect of ML receiver.