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—In this paper we propose a partial network coding with cooperation (PNC-COOP) scheme that mitigates error propagation due to channel imperfections and achieves acceptable throughput in wireless ad hoc networks. It combines opportunistic network coding with decode-and-forward cooperative diversity. The proposed PNC-COOP is a decentralized strategy which(More)
Global System for Mobile communications (GSM system) has become the most popular standard for digital cellular communication. The GSM security system depends on encryption algorithms and information from SIM card. Although it seems to be secure over the past 15 years, with new methods of recent cryptanalysis, GSM security system becomes vulnerable and be(More)
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