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Wireless Networks
Erschienen in: Wireless Networks 5/2019

19.02.2018

ARQ-based cooperative spectrum sharing protocols for cognitive radio networks

verfasst von: Sema Saraç, Ümit Aygölü

Erschienen in: Wireless Networks | Ausgabe 5/2019

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Abstract

In this paper, we propose two cooperative spectrum sharing protocols for cognitive radio networks which consist of an automatic repeat request based primary user with a primary transmitter (PT) and a primary receiver (PR), and a bidirectionally communicating secondary user (SU) with two nodes, S1 and S2. PT transmits a packet to PR by accessing the spectrum alone or by the cooperation of SU or under the interference of SU in the underlay transmission, according to the acknowledgement/negative acknowledgement feedback from PR. The two protocols differ by the application of decode-and-forward and amplify-and-forward strategies at SU during cooperation. Analytical expressions are derived for the throughputs of both users for both protocols and the results are compared with the corresponding reference protocols given in the literature. The theoretical results which are in perfect match with the simulation results show the advantages of the proposed protocols.
Vorheriger Artikel The effects of channel knowledge on cooperative spectrum sensing in Nakagami-n/q fading channels
Nächster Artikel Efficient high-resolution video delivery over VANETs

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Fußnoten
1
In Fig. 3, the state \({\mathcal S}_5\) moves to \({\mathcal S}_1\) with the probability \(P_1\) for the packet success and with the probability \(1-P_1\) for the packet failure.
 
2
The channels \({\hbox {PT}}\rightarrow {\hbox {S1}}\) and \({\hbox {PT}}\rightarrow {\hbox {S2}}\) have the same statistical properties similar to the channels \({\hbox {S1}}\rightarrow {\hbox {PR}}\) and \({\hbox {S2}}\rightarrow {\hbox {PR}}\). Therefore, the following calculations are for PU’s transmission over S1. The calculations for S2 can be obtained by simply replacing indice 1 with 2 in the equations.
 
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Metadaten
Titel
ARQ-based cooperative spectrum sharing protocols for cognitive radio networks
verfasst von
Sema Saraç
Ümit Aygölü
Publikationsdatum
19.02.2018
Verlag
Springer US
Erschienen in
Wireless Networks / Ausgabe 5/2019
Print ISSN: 1022-0038
Elektronische ISSN: 1572-8196
DOI
https://doi.org/10.1007/s11276-018-1686-3

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