Cooperative Relay Selection in Cognitive Radio Networks

Jing, Tao; Zhu, Shixiang; Li, Hongjuan; Xing, Xiaoshuang; Cheng, Xiuzhen; Huo, Yan; Bie, Rongfang; Znati, Taieb

doi:10.1109/tvt.2014.2338297

Cited by 55 publications

(46 citation statements)

References 28 publications

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“…in [14] considers a multi-hop secondary relay selection problem, in which the path is complicated via performing primary clients' strategies. In [15], Jing model the relay selection problem using optimal stopping theory to guide primary clients to find the SU relay that can maximize the throughput for primary clients. However, in aforementioned papers, SUs are considered not to proactively choose their cooperative strategies, which may not be appropriate considering auxiliary clients are rational or selfish.…”

Section: Related Workmentioning

confidence: 99%

An Optimal Selection Approach for Mitigating User Time in Cognitive Radio Networks Using Multiple Channels

Sattu¹,

Babu²

2018

IJIES

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In cognitive radio systems; primary clients can use auxiliary clients as agreeable transfers to expand their transmission rates while auxiliary clients will consequently acquire more range to get circumstances, prompting coordinated cognitive radio systems. Earlier research proposals in Coordinated Cognitive Radio Networks (CCRNs) predominantly concentrate on giving omnipresent access and high throughput primary client for clients yet have infrequently contemplated vitality proficiency. Moreover, most existing works expect that auxiliary clients are inactively chosen by primary clients, paying little respect to auxiliary client's eagerness to help, which is clearly not feasible. To address energy issue, this paper identifies an Energy-Efficient Cooperative Strategy (EECS) by leveraging temporal and spatial diversity of the primary network. In particular, auxiliary clients with delay-tolerant packets can proactively settle on the agreeable choices by together thinking about primary channel accessibility, channel state data, primary client's movement stack, and their own particular transmission necessities. Principle challenge for this cooperative relay determination issue is to choose a relay effectively and economically. Since the quantity of auxiliary clients is expanded step by step because of the quickly developing number of wireless communication gadgets, it is unfeasible to examine all the auxiliary clients and after that pick the best. Predominantly primary client transmitter successively watches auxiliary clients. An arrangement of auxiliary clients is chosen in view of transmission criteria. The hand-off choice plan selects the best hand-off from an arrangement of accessible transfers which are chosen in light of transmission criteria of coordinated connections. In the observation of a hand off primary client need to settle on choice in regards to whether to stop its observation and to pick that as best hand-off or to skip to see next transfer. This problem is addressed by optimal stopping theory and optimal stopping rule. To evaluate the performance of proposed scheme Optimal Selection Approach (OSA), it is compared with auxiliary client's energy efficient and existing cooperative schemes. Extensive simulation study is conducted so that impacts of different system parameters are investigated and algorithm proposed can satisfy different system requirements.

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Section: Related Workmentioning

confidence: 99%

An Optimal Selection Approach for Mitigating User Time in Cognitive Radio Networks Using Multiple Channels

Sattu¹,

Babu²

2018

IJIES

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“…In [15], considered secondary user (SU) as positive cooperators for the primary users (PU) rather than assuming SU as interference to PU which is in many existing works. In this paper PU select SU as relay nodes for their transmission but here is the challenge to select a relay node efficiently as there are large number of SU and it is not possible to first scan all of them and select the best one.…”

Section: Literature Survey On Cognitive Radiomentioning

confidence: 99%

A Survey on Cognitive Radio, Its Need and Paradigms

Rohit

2017

ijarcs

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Abstract:A network plays an important role in our day to day life. Wireless technologies, for their transportability, flexibility and maintenance are getting widely popular in networks in today's era. The wide use of wireless technologies in turn, leads to spectrum scarcity as licensed users occupies a big part of the spectrum. Cognitive Radio (CR) technology is an ultimate approach to encounter spectrum scarceness issues arising in wireless communications. CR provides spectrum access to secondary users without affecting the activities of primary users and thus ensure smooth communication. In this paper, we discuss some basic terms and recent literature surveys related to it.

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“…Some of the algorithms are suggested according to the restraints for allocation of power, bandwidth and channel. The paper [2] present two optimal resource allocation patterns that maximize output and symbol correct rate (SCR). The throughput and SCR are derivative.…”

Section: Resource Allocation In Crmentioning

confidence: 99%

Survey on Relay Selection Techniques in Cognitive Networks

Bouallegue

Sethom

2016

IRA-JTE

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Cognitive radio holds great promise as a research area nowadays. By increasing the spectral efficiency, it is applicable to various areas I. INTRODUCTIONSince the technology of wireless communication is quickly developing; heterogeneous wireless communication system must be adjusted in reduced frequency bandwidth. The efficiency of the conventional orthogonal spectral separation of heterogeneous system is not sufficient to sustain the unceasing growth of wireless device deploying exigency, making spectrum sharing amongst heterogeneous systems increasingly important. Two main challenges for the future of wireless systems are raised: the high data rate request of the growing number of users and the wireless spectrum availability. By reusing the underused licensed frequency bands, Cognitive Radio (CR) is presented as a new facet of telecommunication system to resolve the issue of spectrum availability. In such system, unlicensed wireless users (secondary users) are dynamically granted access to the licensed bands under the compulsion of tolerable interference to the Primary Users (PU). To facilitate the spectrum sharing among Secondary Users SUs and PUs, there are two existing techniques: The spectrum overlay and the spectrum underlay. In the first method, the SU shares some its power resources with the PU to give a relay-assisted transmission. Hence, the secondary network offsets the forced interference by the increase in the signal to interference plus noise ratio (SINR) of primary receivers. Thenceforth, the core idea of the overlay approach is to assign power and channel assets to the entire network, while using the requirements of PUs. To prevail over the spectral efficiency loss of one-way half duplex, [1] implements a two-way relaying.

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Cooperative Relay Selection in Cognitive Radio Networks

Cited by 55 publications

References 28 publications

An Optimal Selection Approach for Mitigating User Time in Cognitive Radio Networks Using Multiple Channels

An Optimal Selection Approach for Mitigating User Time in Cognitive Radio Networks Using Multiple Channels

A Survey on Cognitive Radio, Its Need and Paradigms

Survey on Relay Selection Techniques in Cognitive Networks

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