Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/623988
Title: Performance of Cognitive Selective-Repeat Hybrid Automatic Repeat Request
Authors: Ateeq Ur Rehman;Varghese Antony Thomas;Lie-Liang Yang;Lajos Hanzo
subject: HARQ|throughput|primary users|spectrum sensing transmission reliability|selective-repeat|delay|PMF|Cognitive radio|DTMC
Year: 2016
Publisher: IEEE
Abstract: In this paper, a novel transmission protocol is proposed based on the classical selective-repeat hybrid automatic repeat to access a primary user (PU) channel, which is referred to as the CSR-HARQ. We assume that the PU transmits information based on time-slots (TSs). During a TS, the cognitive radio transmitter first senses the PU channel. Once a free TS is found, it transmits a number of packets to the CU receiver based on the principles of the SR-HARQ. In this paper, we analyze the throughput, average packet delay, and end-to-end packets delay of the CSR-HARQ. We proposed a pair of analytical approaches. The first one is probability based, while the second one relies on the classic discrete time markov chain principles. Finally, we study the throughput, average packet delay, and the end-to-end packet delay of the CSR-HARQ both by simulations and by evaluating our formulas. The simulation-based studies agree well with the analytical results. The performance of the CSR-HARQ systems is significantly impacted by the activity of the PU channel and by the reliability of the spectrum sensing.
Description: 
URI: http://localhost/handle/Hannan/156938
http://localhost/handle/Hannan/623988
ISSN: 2169-3536
volume: 4
Appears in Collections:2016

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Title: Performance of Cognitive Selective-Repeat Hybrid Automatic Repeat Request
Authors: Ateeq Ur Rehman;Varghese Antony Thomas;Lie-Liang Yang;Lajos Hanzo
subject: HARQ|throughput|primary users|spectrum sensing transmission reliability|selective-repeat|delay|PMF|Cognitive radio|DTMC
Year: 2016
Publisher: IEEE
Abstract: In this paper, a novel transmission protocol is proposed based on the classical selective-repeat hybrid automatic repeat to access a primary user (PU) channel, which is referred to as the CSR-HARQ. We assume that the PU transmits information based on time-slots (TSs). During a TS, the cognitive radio transmitter first senses the PU channel. Once a free TS is found, it transmits a number of packets to the CU receiver based on the principles of the SR-HARQ. In this paper, we analyze the throughput, average packet delay, and end-to-end packets delay of the CSR-HARQ. We proposed a pair of analytical approaches. The first one is probability based, while the second one relies on the classic discrete time markov chain principles. Finally, we study the throughput, average packet delay, and the end-to-end packet delay of the CSR-HARQ both by simulations and by evaluating our formulas. The simulation-based studies agree well with the analytical results. The performance of the CSR-HARQ systems is significantly impacted by the activity of the PU channel and by the reliability of the spectrum sensing.
Description: 
URI: http://localhost/handle/Hannan/156938
http://localhost/handle/Hannan/623988
ISSN: 2169-3536
volume: 4
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7744542.pdf9.85 MBAdobe PDFThumbnail
Preview File
Title: Performance of Cognitive Selective-Repeat Hybrid Automatic Repeat Request
Authors: Ateeq Ur Rehman;Varghese Antony Thomas;Lie-Liang Yang;Lajos Hanzo
subject: HARQ|throughput|primary users|spectrum sensing transmission reliability|selective-repeat|delay|PMF|Cognitive radio|DTMC
Year: 2016
Publisher: IEEE
Abstract: In this paper, a novel transmission protocol is proposed based on the classical selective-repeat hybrid automatic repeat to access a primary user (PU) channel, which is referred to as the CSR-HARQ. We assume that the PU transmits information based on time-slots (TSs). During a TS, the cognitive radio transmitter first senses the PU channel. Once a free TS is found, it transmits a number of packets to the CU receiver based on the principles of the SR-HARQ. In this paper, we analyze the throughput, average packet delay, and end-to-end packets delay of the CSR-HARQ. We proposed a pair of analytical approaches. The first one is probability based, while the second one relies on the classic discrete time markov chain principles. Finally, we study the throughput, average packet delay, and the end-to-end packet delay of the CSR-HARQ both by simulations and by evaluating our formulas. The simulation-based studies agree well with the analytical results. The performance of the CSR-HARQ systems is significantly impacted by the activity of the PU channel and by the reliability of the spectrum sensing.
Description: 
URI: http://localhost/handle/Hannan/156938
http://localhost/handle/Hannan/623988
ISSN: 2169-3536
volume: 4
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7744542.pdf9.85 MBAdobe PDFThumbnail
Preview File