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- W2085185562 abstract "In this paper, we introduce a probabilistic routing metric that considers the peculiar characteristics of the operating environment of cognitive radio networks (CRNs). This metric captures the dynamic changes in channel availabilities due to the randomness of primary user’s activity and the rich channel diversity due to the fact that a CRN is expected to operate over highly separated frequency channels with different propagation characteristics. Our metric, Probability of Success (PoS), statistically quantifies the chances of a successful cognitive radio (CR) packet transmission over a given channel. Based on the PoS metric, we propose a joint probabilistic routing and channel assignment protocol for multi-hop CRNs that attempts at selecting the path with the maximum probability of success among all possible paths for a given CR source-destination pair. Selecting such a path results in minimizing the number of disruptions to CR packet transmissions, which consequently improves network throughput. Simulation results verify the significant throughput improvement achieved by our protocol compared to reference CRN routing protocols." @default.
- W2085185562 created "2016-06-24" @default.
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- W2085185562 date "2012-11-01" @default.
- W2085185562 modified "2023-09-27" @default.
- W2085185562 title "Probabilistic quality-aware routing in cognitive radio networks under dynamically varying spectrum opportunities" @default.
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- W2085185562 doi "https://doi.org/10.1016/j.compeleceng.2012.07.018" @default.
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