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In this paper, we use a Spectrum Sharing/allocation algorithm to implement a Cognitive Radio network without spectral awareness. This allows radio resources to be allocated to primary users and to secondary users in such a way that primary system and secondary system are aware of each other. By doing this, sensing of spectrum holes is avoided but the primary users will be protected and will always...
To provide better usage of spectrum, regulators, such as the FCC and Ofcom, have been considering how to share spectrum between operators and also between different types of network. Two important aspects of any mobile service that need to be considered are how to ensure the appropriate level of service to individual users and how to minimize power consumption. This paper addresses the issue by applying...
The incremental needs of the wireless technologies came from the rapid proliferation of the mobile devices, which become one of the life necessities for people. The clear growth in the mobile application markets either in video, audio, or web surfing and with all the innovations and inventions in the technologies, the needs of using the wireless heterogenous networks become a fact. In this paper,...
In this paper, we propose a non-coordinated Licensed Shared Access (LSA) model which enables Mobile Network Operators (MNOs) acting as domestic licensees to provide enhanced Quality of Service (QoS) in border areas. The proposed model allows the domestic licensees to rely on their backup strategies while utilizing available spectrum resources, to avoid severe interference and maintain their QoS, whenever...
The usage of IEEE 802.11 wireless equipment has been growing in recent years. Nevertheless, the spectrum which is used by such equipment is already overcrowded and due to this, the performance of wireless devices is decreasing. Recently, IEEE 802.11 was updated with the latest IEEE 802.11ac version. IEEE 802.11ac provides higher modulation capabilities and more robustness against interference. With...
In this fifth generation era, interference management as well as ensuring better Quality of Service (QoS) is an immense concern for the service providing operators. With a view to improving the efficacy and flexibility of mobile communications future generation networks will confide on autonomous and distributed architectures. In this prospect game theory comes up with the hypothetical but ideal framework...
We investigate a secondary spectrum market where each primary owns a channel over large number of locations. Each primary sells its channel to the secondaries in exchange of a price. However, the secondaries can not transmit simultaneously at interfering locations. A primary must select a price and a set on non-interfering locations for its available channel where the availability of a channel for...
We consider a system with multiple Femtocells operating in a Macrocell. The transmissions in one Femtocell interfere with its neighboring Femtocells. Each Femtocell has multiple users each requiring a minimum transmission rate. There is also peak transmit power constraint in each channel to control interference to the BS and the users in the Macrocell. We formulate the problem of channel allocation...
To make full use of the spectrum resources with the coexistence of primary users (PUs) and secondary users (SUs) in cognitive radio networks (CRNs), we jointly consider the signal-to-interference-plus-noise ratio (SINR) and the transmission power of SUs to build a relevant interference model in this paper. Based on non-cooperative game theory, we propose a novel power control algorithm with a new...
In this paper we have integrated Game theory framework, effective capacity theory and interference minimization for power allocation analysis over fading multiple access channels (MAC). Game theory is a powerful tool for modeling selfish behavior of competitors in resource allocation contest and can be used effectively in designing and modeling behavior of users in distributed resource allocation...
Cognitive radio represents a promising paradigm to further increase transmission rates in wireless networks, as well as to facilitate the deployment of self-organized networks such as femtocells. Within this framework, secondary users (SU) may exploit the channel under the premise to maintain the quality of service (QoS) on primary users (PU) above a certain level. To achieve this goal, we present...
In cognitive radio network, transmission power must be carefully controlled to maximize the channel usage. This paper investigates the relationship of transmission power among primary and secondary users under the game theory framework. Both cooperative and non-cooperative games are considered. Particularly, two variations of cooperative games are formulated, differed by the total utility functions...
In cognitive radio networks (CRNs), transmission power levels (TPLs) of secondary users (SUs) have a significant impact on system performance. As interference to primary users (PUs) increases with TPLs of SUs, whereas the Quality of service (QoS) of CRNs cannot be satisfied with low TPLs of its users. In this paper, we carefully investigate how to decide the TPLs of SUs by using non-cooperative game...
The electromagnetic spectrum is a scarce resource that needs to be efficiently and effectively reused to allow the provider the necessary conditions to satisfy its customers increasing demands. It is vital that the reuse of the spectrum does not lead to high interference scenarios. The use of heterogeneous networks (HetNets) allows a better spatial reuse of the spectrum. However it also leads to higher...
Femtocells are new devices that are recently developed to address the poor indoor coverage of the 3G cellular network and beyond. This solution may, however, cause significant interference in the system. In our paper, we propose a new approach based on game theory which aims at enhancing the femtocells' capacity in a HSDPA network while mitigating the interference impact on the macro users' quality...
In this paper1, we propose a resource allocation scheme based on a utility/pricing strategy with the objective to maximize a defined utility function subject to minimize the mutual interference caused by secondary users (SUs) with protection for primary users (PUs). Specifically, we formulate a utility function to reflect the needs of PUs by verifying the outage probability constraint, and the per-user...
In this paper we consider the inter-network interference problem in Wireless Body Area Networks (WBANs). We propose a distributed inter-network interference aware power control algorithm motivated by game theory. A power control game is formulated considering both interference between nearby networks and energy efficiency of WBANs. We derive a distributed power control algorithm called ProActive Power...
This paper is concerned with the concept of equilibrium and quality of service (QoS) provisioning in self-configuring wireless networks with non-cooperative radio devices (RD). In contrast with the Nash equilibrium (NE), where RDs are interested in selfishly maximizing its QoS, we present a concept of equilibrium, named satisfaction equilibrium (SE), where RDs are interested only in guaranteing a...
In this paper we introduce a new architecture for dynamic spectrum sharing called the distributed dynamic spectrum leasing (D-DSL) and a game theoretic framework for its implementation on a cognitive radio network. In D-DSL, it is assumed that each channel is assigned to a primary user who may lease the channel to secondary users. The spectrum owners can thus dynamically adjust the amount of interference...
High-throughput data traffic has gained prominence in the mobile telecommunications. But the service quality is never a grantee due to the nature of wireless communication. This not only degrades the utility of customers but also reduces the revenue of service provider. To overcome such predicament, the overlay macrocell-femtocell system is introduced to enhance the service quality by reutilize spectrum...
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