To decrease the complexity of MAP algorithm, reduced state or reduced search techniques can be applied. In this paper we propose a reduced search soft output detection algorithm fully based on the principle of M a...To decrease the complexity of MAP algorithm, reduced state or reduced search techniques can be applied. In this paper we propose a reduced search soft output detection algorithm fully based on the principle of M algorithm for turbo equalization, which is a suboptimum version of the Lee algorithm. This algorithm is called soft output M algorithm (denoted as SO M algorithm), which applies the M strategy to both the forward recursion and the extended forward recursion of the Lee algorithm. Computer simulation results show that, by properly selecting and adjusting the breadth parameter and depth parameter during the iteration of turbo equalization, this algorithm can obtain good performance and complexity trade off.展开更多
Lu-Lee cryptosystem and its modification proposed by Adiga and Shanker have been attacked by several authors, the critical reason for which is that their encryption functions are linear, therefore, the cryptanalysis f...Lu-Lee cryptosystem and its modification proposed by Adiga and Shanker have been attacked by several authors, the critical reason for which is that their encryption functions are linear, therefore, the cryptanalysis for both the systems can be translated into solving integer linear programmings with variables no more than 4, which can be solved by展开更多
文摘To decrease the complexity of MAP algorithm, reduced state or reduced search techniques can be applied. In this paper we propose a reduced search soft output detection algorithm fully based on the principle of M algorithm for turbo equalization, which is a suboptimum version of the Lee algorithm. This algorithm is called soft output M algorithm (denoted as SO M algorithm), which applies the M strategy to both the forward recursion and the extended forward recursion of the Lee algorithm. Computer simulation results show that, by properly selecting and adjusting the breadth parameter and depth parameter during the iteration of turbo equalization, this algorithm can obtain good performance and complexity trade off.
基金Project supported by the National Natural Science Foundation of China.
文摘Lu-Lee cryptosystem and its modification proposed by Adiga and Shanker have been attacked by several authors, the critical reason for which is that their encryption functions are linear, therefore, the cryptanalysis for both the systems can be translated into solving integer linear programmings with variables no more than 4, which can be solved by
