Bits through ARQs: Spectrum Sharing with a Primary Packet System

Eswaran, Krishnan; Gastpar, Michael; Ramchandran, Kannan

doi:10.1109/isit.2007.4557542

Cited by 59 publications

(45 citation statements)

References 7 publications

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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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“…However, this is not straight forward as the secondary does not have direct access to the primary CSI. In [7], [8], a secondary system is allowed to transmit in the primary frequency band and the control feedback, such as ARQ, channel state, or power control information, from the primary serves as the side information to the secondary terminals. Similarly, in [9], [10] the secondary user co-exists with a maximal-T -transmission primary system, under a constraint on the maximum throughput loss of the primary; [11] and [12] investigate techniques for exploiting the redundancy of the primary transmission process, as introduced by the ARQ scheme, i.e.…”

Section: Introductionmentioning

confidence: 99%

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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“…Although [17] uses a similar constraint, our work differs substantially for the following reasons: (1) in [17], the authors propose a channel access control algorithm, whereas we propose a power control algorithm; (2) the authors of [17] do not connect the rateassurance constraint to PU queue stability; (3) our analysis hinges on Lyapunov Stability theory whereas [17] applies the theory of Markov decision processes. The authors of [25] studied primary transmission-rate guarantee through primary ACK/NAK eavesdropping by secondary users. The system is modeled as an erasure channel and the erasure probability is influenced by the SU activities.…”

Section: Introductionmentioning

confidence: 99%

“…The system is modeled as an erasure channel and the erasure probability is influenced by the SU activities. Our work differs from that of [25] in that our system model is different and we apply the theory of Lyapunov stability to devise a decentralized algorithm that allows multiple SU coordinations under the rate constraint. In [26], the authors propose a scheme that allows the PTx to change probability of transmission according to the secondary activity and/or channel conditions.…”

Section: Introductionmentioning

confidence: 99%

Distributed Control of Multiple Cognitive Radio Overlay for Primary Queue Stability

Lapiccirella

Liu

Ding

2013

IEEE Trans. Wireless Commun.

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Abstract-In this paper, we investigate distributed control of multiple secondary users attempting to access the channel of a high priority primary user. Our aim is to maximize the sum cognitive (secondary) user throughput under the constraint of primary user's queue stability. We consider the effect of primary user link adaptation that allows the primary transmitter (PTx) to adapt its transmission rate in response to the secondary interference-level at the primary receiver (PRx). To control the sum secondary interference to PRx beyond the traditional collision-avoidance paradigm, we propose a novel power-control algorithm for secondary nodes to function. To develop such a distributed algorithm and to improve secondary user adaptability, we allow secondary nodes to monitor primary's radio link control information on the feedback channel. We present practical schemes that approximate the optimum solution without relying on global channel information at each secondary node.

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Bits through ARQs: Spectrum Sharing with a Primary Packet System

Cited by 59 publications

References 7 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

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

Distributed Control of Multiple Cognitive Radio Overlay for Primary Queue Stability

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