Cognitive Radio Protocols Based on Exploiting Hybrid ARQ Retransmissions

Tannious, Ramy Abdallah; Nosratinia, Aria

doi:10.1109/twc.2010.062910.091162

Cited by 93 publications

(120 citation statements)

References 26 publications

(31 reference statements)

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“…ARQ means automatic repeat request and the mechanism used in the process is whenever the source node transmits a message to the destination user, if the message received successfully by the destination then it sends ACK-acknowledgement signals back to the sender such that sender assumes that message reached successfully [8][9] [11].…”

Section: Fig 1: System Model[12]mentioning

confidence: 99%

Performance Analysis of Spectrum Sharing based on Bayesian Spectrum Sensing in Cognitive Radio Networks

Roushan¹,

Jha²,

Chawla³

2017

IJCA

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This paper addresses the comparison of spectrum sensing methods between the ARQ Retransmission technique in the context of cognitive radio with the standard detection method using Bayesian approach and drawing the inferences using the results. Two different types of spectrum sharing are taken namely conservative and aggressive and compared with legacy, Bayesian approaches. And two of them do not introduce any breakdown to the primary users who are using the spectrum and the main difference between them is that conservative does not interrupt the primary operations and whenever primary needs spectrum it will provide, but in aggressive, sometimes it may not allow the spectrum to primary user until the secondary user releases the spectrum which decreases the throughput of primary. The results have been obtained and inferences are taken.

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Section: Fig 1: System Model[12]mentioning

confidence: 99%

Performance Analysis of Spectrum Sharing based on Bayesian Spectrum Sensing in Cognitive Radio Networks

Roushan¹,

Jha²,

Chawla³

2017

IJCA

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“…Tannious et al [8] have proposed an algorithm where a secondary node user exploits the retransmissions of primary node user packets in order to achieve a higher transmission rate. The secondary node receiver can potentially decode the primary node users packet in the first transmission.…”

Section: Related Workmentioning

confidence: 99%

Efficient Retransmission QoS-Aware MAC Scheme in Wireless Sensor Networks

Kumaraswamy

Shaila

Tejaswi

et al. 2014

Lecture Notes in Electrical Engineering

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In this paper, an Efficient Retransmission Random Access Protocol (ERRAP) is designed that combines scheme of collision avoidance and energy management for low-cost, short-range wireless radios and low-energy sensor nodes applications. This protocol focuses on efficient Media Access Control (MAC) schemes to provide autonomous Quality of Service (QoS) to the sensor nodes in one-hop QoS retransmission group in WSNs where the source nodes do not have receiver circuits. These sensor nodes can only transmit data to a destination node, but cannot receive acknowledgement or control signals from the destination node. The proposed scheme ERRAP provides QoS to the nodes which work independently on predefined time by allowing them to transmit each packet an optimal number of times within a given period. Our simulation results demonstrate the superiority of ERRAP scheme which increases the delivery probability and reduces the energy consumption. IntroductionWireless Sensor Networks (WSNs) consist of a large number of distributed nodes, that combine automated sensing, embedded computing and wireless components into tiny embedded devices. WSNs gather information or detect special events and communicate in a wireless fashion. WSNs provide a wide range of potential

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“…Tannious and Nosratinia [16] propose to use the ARQ feedback information to harvest excess mutual information in the channel when the primary has constant rate and power, while the channel gains fluctuate due to fading. The essence of the idea of [16] is that whenever the primary receiver sends a NACK, other nodes in the system (potentially) become aware that a second transmission will be underway.…”

Section: Introductionmentioning

confidence: 99%

“…The essence of the idea of [16] is that whenever the primary receiver sends a NACK, other nodes in the system (potentially) become aware that a second transmission will be underway. Because the first transmission has already provided some information to the primary receiver (albeit not enough), the second transmission now needs to provide less than a full amount of mutual information and can be more robust to interference.…”

Section: Introductionmentioning

confidence: 99%

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SHARP: Spectrum Harvesting with ARQ Retransmission and Probing in Cognitive Radio

Zhang

Nosratinia

et al. 2013

IEEE Trans. Commun.

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Abstract-In underlay cognitive radio, a secondary user transmits in the transmission band of a primary user without serious degradation in the performance of the primary user. This paper proposes a method of underlay cognitive radio where the secondary pair listens to the primary ARQ feedback to glean information about the primary channel. The secondary transmitter may also probe the channel by transmitting a packet and listening to the primary ARQ, thus getting additional information about the relative strength of the cross channel and primary channel. The method is entitled Spectrum Harvesting with ARQ Retransmission and Probing (SHARP). The probing is done only infrequently to minimize its impact on the primary throughput. Two varieties of spectrum sharing, named conservative and aggressive SHARP, are introduced. Both methods avoid introducing any outage in the primary; their difference is that conservative SHARP leaves the primary operations altogether unaffected, while aggressive SHARP may occasionally force the primary to use two instead of one transmission cycle for a packet, in order to harvest a better throughput for the secondary. The performance of the proposed system is analyzed and it is shown that the secondary throughput can be significantly improved via the proposed approach, possibly with a small loss of the primary throughput during the transmission as well as probing period.

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Cognitive Radio Protocols Based on Exploiting Hybrid ARQ Retransmissions

Cited by 93 publications

References 26 publications

Performance Analysis of Spectrum Sharing based on Bayesian Spectrum Sensing in Cognitive Radio Networks

Performance Analysis of Spectrum Sharing based on Bayesian Spectrum Sensing in Cognitive Radio Networks

Efficient Retransmission QoS-Aware MAC Scheme in Wireless Sensor Networks

SHARP: Spectrum Harvesting with ARQ Retransmission and Probing in Cognitive Radio

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