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- W2743118857 abstract "The increasing interest for wireless communication services and scarcity of radio spectrum resources have created the need for a more flexible and efficient usage of the radio frequency bands. Cognitive Radio (CR) emerges as an important trend for a solution to this problem. Spectrum sensing is a crucial function in a CR system. Cooperative spectrum sensing can overcome fading and shadowing effects, and hence increase the reliability of primary user detection. In this paper we consider a system model of a dedicated detect-andforward wireless sensor network (DetF WSN) for cooperative spectrum sensing with k-out-of-n decision fusion in the presence of reporting channels errors. Using this model we consider the design of a spatial reuse media access control (MAC) protocol based on TDMA/OFDMA to resolve conflicts and conserve resources for intra-WSN communication. The influence of the MAC protocol on spectrum sensing performance of the WSN is a key consideration. Two design approaches, using greedy and adaptive simulated annealing (ASA) algorithms, are considered in detail. Performance results assuming a grid network in a Rician fading environment are presented for the two design approaches." @default.
- W2743118857 created "2017-08-17" @default.
- W2743118857 creator A5016051584 @default.
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- W2743118857 date "2017-01-01" @default.
- W2743118857 modified "2023-09-27" @default.
- W2743118857 title "Media Access with Spatial Reuse for Cooperative Spectrum Sensing" @default.
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- W2743118857 doi "https://doi.org/10.4236/wsn.2017.97012" @default.
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