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摘要： This paper considers a coding scheme for unsourced random access (URA) based on sparse regression codes(SPARCs). 阅读全文

摘要： To account for the massive uncoordinated random access scenario, which is relevant for the Internet of Things, Polyanskiy (2017) proposed a novel formulation of the multipleaccess problem, commonly referred to as unsourced multiple access, where all users employ a common codebook and the receiver decodes up to a permutation of the messages. In this simulation we extend this seminal work to the case where the number of active users is random and unknown a priori. 阅读全文