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- W1946413336 abstract "In this paper, we propose a cognitive protocol that involves cooperation between the primary and secondary users. In addition to its own queue, the secondary user (SU) has a queue to store, and then relay, the undelivered primary packets. When the primary queue is nonempty, the SU remains idle and attempts to decode the primary packet. When the primary queue is empty, the SU splits the total channel bandwidth into two orthogonal subbands and assigns each to a queue probabilistically. We show the advantage of the proposed protocol over the prioritized cognitive relaying (PCR) protocol in which the SU assigns a priority in transmission to the primary packets over its own packets. We present two problem formulations, one based on throughput and the other on delay. Both optimization problems are shown to be linear programs for a given bandwidth assignment. Numerical results demonstrate the benefits of the proposed protocol." @default.
- W1946413336 created "2016-06-24" @default.
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- W1946413336 date "2014-09-01" @default.
- W1946413336 modified "2023-09-24" @default.
- W1946413336 title "Probabilistic band-splitting for a buffered cooperative cognitive terminal" @default.
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- W1946413336 doi "https://doi.org/10.1109/pimrc.2014.7136318" @default.
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