Mohammed Lahmer

Learn More
—In this paper we present a study of the impact of connection schemes on the performance of iterative decoding of Generalized Parallel Concatenated block (GPCB) constructed from one step majority logic decodable (OSMLD) codes and we propose a new connection scheme for decoding them. All iterative decoding connection schemes use a soft-input soft-output(More)
This paper presents a new class of Quasi-Cyclic One Step Majority logic codes of 1/2 rate constructed from perfect difference set. Theses codes can be encoded with low complexity, and perform very well when decoded with the Iterative threshold decoding algorithm. Much of these codes is a subfamily of the LDPC codes and can be decoded using belief(More)
The security issues of RFID technology have been subject of a large number of research documents for over a decade. Several protocols have been developed to ensure reliable access control, namely a family of lightweight authentication protocols since Hopper and Blum proposed the HB protocol in 2001. Taking into account security and performance aspects, we(More)
  • 1