Outage probability analysis of optimal and suboptimal interference aware routing protocols for multihop underlay cognitive radio networks

Touati, Sami; Boujemâa, Hatem; Abed, Nazha

doi:10.1002/ett.2779

Cited by 7 publications

(5 citation statements)

References 28 publications

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“…It has been reported that most of the existing access strategies are applicable to single channel CRNs, where a cognitive user is allowed to access only one channel at a time. However, recent advances on physical technologies, such as orthogonal frequency division multiplexing, enable an SU to access multiple channels at a given time.…”

Section: Challenges and Research Issuesmentioning

confidence: 99%

A survey of overlay and underlay paradigms in cognitive radio networks

Kumar

Dhurandher

Woungang

2017

Int J Communication

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Summary In the recent years, wireless applications and services have grown tremendously, resulting to a shortage of radio spectrum. On one hand, most of the available radio spectrum has already been allocated to different users and service providers. On another hand, research and statistics have revealed that the spectrum utilization usability is very limited. To address this dilemma, the concept of cognitive radio has emerged, which promotes the use of overlay and underlay transmission techniques to boost the utilization of radio spectrum resources. This paper provides a comprehensive survey of these 2 techniques and compares them qualitatively based on several network parameters. Next, this paper simulates overlay and underlay transmission techniques in OMNeT++ simulator on different network parameters, namely, Primary user arrival rate, throughput, sensing duration, and energy consumption. Our findings reveal that neither the overlay nor the underlay technique is sufficient itself to fulfill the demands for future wireless systems, and adopting a hybrid access technique consisting of a joint utilization of overlay and underlay approaches is desirable. Furthermore, the key challenges and open research issues in radio spectrum resources utilization are discussed.

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Section: Challenges and Research Issuesmentioning

confidence: 99%

A survey of overlay and underlay paradigms in cognitive radio networks

Kumar

Dhurandher

Woungang

2017

Int J Communication

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“…If relaying is analog, intermediate nodes amplify and forward the data packet received from the source node. The end-to-end outage probability of the route is defined as the probability that the route SINR (γr) is below some threshold value (γth) which can be written as, (11…”

Section: Outage Probabilitymentioning

confidence: 99%

“…In [9] consider residual energy of nodes to select the routes to increase life time of the network. Some algorithms take interference as routing metric to improve performance of the network [10,11]. In [12] proposed a queuing model to select the route at which the congestion is minimized.…”

Section: Introductionmentioning

confidence: 99%

Interference Aware Cooperative Routing Algorithm for Wireless Ad Hoc Networks over Nakagami Fading and Lognormal Shadowing

Waqas¹

2016

ijcna

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The quick deployment and flexible characteristics of wireless ad hoc networks make them suitable for many commercial and daily life applications. A most challenging task in these distributed networks is ensuring quality of service to end-to-end user in presence of wireless channel, random network topology, unpredictable traffic patterns, and shared resources. The performance of network is limit by the amount of interference in the network in case of simultaneous transmission over same frequency band. In this paper, we address interference issue in presence of nakagami fading and lognormal shadowing channel conditions and proposed an Interference Aware Cooperative Routing (IACR) approach to manage routing operations between nodes. The presented model reflects realistic scenarios for urban areas where fading and shadowing occurs due to tall buildings in the neighborhood of transmitters. The proposed solution establishes routes between source and destination by introducing cooperation among network nodes. Each node in the network selects path such that interference created by it towards other nodes is minimized taking into account that the Signal to Interference plus Noise Ratio (SINR) at destination does not decreases a threshold value. Hence, the presented approach reduces amount of overall interference in the network without degrading the quality of individual route. The simulation results show that the performance of proposed solution is better than conventional hop count and interference aware routing algorithms in terms of throughput and outage probability of the network.

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“…Then, motivated by the potential benefits of cognitive radio and cooperative techniques, several recent works analyse the performance of cooperative secondary networks under spectrum sharing constraints [5][6][7][8][9][10][11][12]. For instance, the outage probability of a dual-hop CN under Nakagami-m fading is investigated in [5], which shows that the diversity order is dominated by the fading severity between the two hops of the secondary network.…”

Section: Introductionmentioning

confidence: 99%

“…In , the authors evaluate the outage probability for a cooperative secondary network with imperfect channel information, including the effect of the relay position. In , optimal and suboptimal routing protocols are proposed for a multi‐hop cognitive network, aiming at minimising the end‐to‐end outage probability while ensuring that the interference at the primary destination is below a certain threshold.…”

Section: Introductionmentioning

confidence: 99%

Outage performance of a network coding aided multi‐user cooperative secondary network

Mafra

Souza

Rebelatto

et al. 2015

Trans. Emerging Tel. Tech.

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We evaluate the performance of a network‐coded cooperative secondary network in a cognitive radio system under spectrum sharing constraints. The secondary network is composed of multiple sources that cooperate to transmit their own information to a common secondary destination. The outage probability is analysed under a given maximum interference constraint set by the primary network as well as to the maximum transmit power limit of the secondary sources. Moreover, we also obtain a closed‐form equation for the ϵ‐outage capacity, that is, the maximum information rate achieved by the secondary sources given a target outage probability. Also, we resort to the Dinkelbach algorithm in order to find the optimum number of parity packets that maximises the ϵ‐outage capacity. The influence of the number of source nodes and another system parameters in the secondary's performance is also evaluated, and we show through theoretical and numerical results that cooperative communication with network coding can provide significant gains in terms of outage probability and diversity order when compared with non‐cooperative or traditional cooperative. Copyright © 2015 John Wiley & Sons, Ltd.

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Outage probability analysis of optimal and suboptimal interference aware routing protocols for multihop underlay cognitive radio networks

Cited by 7 publications

References 28 publications

A survey of overlay and underlay paradigms in cognitive radio networks

A survey of overlay and underlay paradigms in cognitive radio networks

Interference Aware Cooperative Routing Algorithm for Wireless Ad Hoc Networks over Nakagami Fading and Lognormal Shadowing

Outage performance of a network coding aided multi‐user cooperative secondary network

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