2015
DOI: 10.1155/2015/614643
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On the Optimality of Generic Rate-Based AIMD and AIAD Congestion Control Schemes in Cognitive Radio Sensor Networks

Abstract: Investigating the optimality and the modeling of congestion control schemes is crucial in order to provide quality of service (QoS) for various applications in cognitive radio sensor networks (CRSNs). This paper develops an analytical framework to study the optimality of rate-based generic AIMD and AIAD congestion control schemes. In this way, a congestion model is introduced to describe the congestion behavior of CRSNs. A semi-Markov chain (SMC) is proposed to model the steady-state sending rate distribution … Show more

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Cited by 6 publications
(17 citation statements)
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“…These values are indicative for simulation purposes and can be set to any other positive real numbers. The PU states .r d ; r a / D .1; 5/ and (1,3) are considered as high-activity states, and the states .r d ; r a / D .1; 1/, (3,3) and (5,5), PUs are considered as medium-activity states in the channel. Also, the PU states .r d ; r a / D .3; 1/ and (5,1) are considered as low activity in the channel.…”
Section: Packet Loss Probabilitymentioning
confidence: 99%
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“…These values are indicative for simulation purposes and can be set to any other positive real numbers. The PU states .r d ; r a / D .1; 5/ and (1,3) are considered as high-activity states, and the states .r d ; r a / D .1; 1/, (3,3) and (5,5), PUs are considered as medium-activity states in the channel. Also, the PU states .r d ; r a / D .3; 1/ and (5,1) are considered as low activity in the channel.…”
Section: Packet Loss Probabilitymentioning
confidence: 99%
“…(4) According to information theory definitions, the joint entropy of data issued by two sensors (H.S 1 ; S 2 /) are calculated. (5) The joint entropy of data issued by multiple sensors (H.S 1 ; : : : ; S N /) is estimated by a proposed heuristics algorithm.…”
Section: Weighting Process Of Multimedia Flowsmentioning
confidence: 99%
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“…Cognitive radio technology 12 can be used in wireless sensor networks (WSNs) to over- 13 come spectrum shortage problem and reserve the limited 14 resources of sensors in WSNs [3]. Wireless sensor networks 15 with CR-equipped sensor nodes are called cognitive radio 16 sensor networks (CRSNs) [3]. With regard to the applica-17 tion, opportunistic spectrum access (OSA) feature of sensor 18 nodes in CRSNs can decrease the collision and retransmission 19 probabilities in the environments with bursty traffic which 20 is common in sensor networks.…”
Section: Introductionmentioning
confidence: 99%
“…Au-104 thors in [5] investigate the challenges of real-time transport 105 over CRSNs in the different spectrum environments of smart 106 grid. In [15], the optimality of simple rate adjustment tech-107 niques is investigated in CRSNs. In [16], the stochastic back-108 log and delay bounds of generic AIMD congestion control 109 schemes in CRSNs are modeled based on stochastic network 110 calculus (SNC) [17].…”
Section: Introductionmentioning
confidence: 99%