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The increasing data demand of mobile users in the rural environment makes the provision of the Internet access quite challenging. Specialized relay stations can help to enhance the network coverage, but in geographically difficult terrains with users being widely scattered, their usage becomes economically and operationally difficult. In this paper, we propose to utilize the ordinary mobile users...
While trying to get a service from the Base station it happens that many devices will find themselves competing to get the cellular service, which means each device will use the maximum power possible to win the competition, but if there is another solution that will allow the device to get what it wanted with minimum of energy, how the device will react to it? In other words, we know that the communication...
One of the challenges in designing dual communication and radar systems employing multi-carrier waveforms is addressing the separate radar and communication objectives. This challenge becomes more difficult when one considers that such a system would be the target of malicious attacks, especially those involving interference. In this paper, to gain insight into the problem, a game-theoretical model...
Dynamic Spectrum Access (DSA) has been proposed to increase the spectrum utilization efficiency and to solve the spectrum scarcity problem. However, due to the spectrum sharing and opportunistic access nature of the DSA networks, they are more vulnerable to security threats like jammers. In this paper, we propose an anti-jamming technique in which the secondary network coordinator groups the secondary...
Interference alignment (IA) is an efficient interference management technique that can result in sum-rates that scale linearly with the number of users at high signal-to-noise power ratio (SNR). But it is difficult to directly apply IA to large networks because of heavy signaling overhead and feasibility constraint. Clustered IA divides cells into disjoint clusters where IA is applied in each cluster...
This paper applies the theory of Evolutionary Game to QoS routing algorithm for wireless mesh networks which can not only improve the performance of traditional QoS routing protocols but also be able to reduce the cost of the routing algorithm.
Small cells are low-powered cellular radio access nodes which make best use of available spectrum by reusing the same frequencies many times within a geographical area. However, the deployment of small cells (e.g., femtocells) may introduce extra interferences such as cross-tier(macrocellfemtocell) and co-tier (femtocell-femtocell) interferences. In this regard, an effective interference management...
This paper investigates distributed resource allocation in next-generation underlay Device-to-Device (D2D) networks. The joint channel and power allocation for a D2D network underlaying a cellular network is formulated as a non-cooperative game. A utility-based learning algorithm which does not require information exchange between device pairs is proposed to determine the channel index and power level...
In irregular low density signature-orthogonal frequency division multiplexing (IrLDS-OFDM) random access system, since no uplink scheduling is performed, each user randomly picks one low density signature (LDS) with different density factor, and spreads the symbols with LDS in the time-frequency domain. In this paper, we propose a game theoretical model to describe this non-cooperative uplink multiple...
In this paper, distributed Nash equilibrium seeking for multi-agent games, particularly for games where the players' payoff functions are partially coupled, is investigated. To model the (partial, explicit) dependence of the players' payoff functions on the players' actions, an interference graph is introduced. Besides, the players are supposed to be equipped with a communication graph to achieve...
In this paper, the problem of joint users' uplink transmission power and rate allocation in NOMA wireless networks is studied, under the scenario that each user is simultaneously requesting multiple services. Each user is associated with a two-variable utility function that represents his satisfaction from his allocated resources (i.e., power and rate). In order to appropriately reflect the combined...
In this paper, we study the interference management problem for device to device (D2D) communication underlaying cellular networks. To improve the throughput of the D2D communication, the D2D pair can reuse multi-channel of cellular communication. We propose the game theoretic framework to jointly optimize the throughput of the D2D communication as well as guarantee the interference to the cellular...
This paper considers the problem of joint channel allocation and power control in the uplink scenario of device-to-device communications underlaying cellular networks. The problem is formulated as a coalition formation game, then a merge-split algorithm for that game is investigated. We analyze the conditions for which an merge-split algorithm will always converge to the Dc-stable coalitional structure...
We consider a hybrid model of wireless networks, where nodes are able to communicate with each other and a base station as well. We use a coalitional approach for modelling the communication structures and to describe the resulting SINR values and bandwidths. We provide a framework which assumes two frequencies; one for direct communication with the base station and one for internal communication...
In this paper, we investigate the sum-rate maximization in the Device-to-Device (D2D) communication underlaying cellular networks, where many cellular users (CUs) share the uplink resource with the D2D pairs. We show that the system sum- rate maximization problem can be formulated as a mixed integer non-linear programming problem, which is NP-hard in general. We circumvent this difficulty by applying...
Anti-jamming is an important capability for satellite communication (SATCOM) systems, when critical communication links may need to be maintained in hostile environments with smart jammers trying to disrupt the communications. The protection of SATCOM links from intended radio frequency interference (RFI) is a complex task. Anti-jamming (AJ) can be done in multiple domains: space, time, frequency,...
This paper proposes a new cognitive anti-jamming stochastic game model for multi-agent environments in which each wideband autonomous cognitive radio (WACR) attempts to predict and evade the transmissions of other radios as well as a dynamic jammer signal. The cognitive framework is divided into two operations: sensing and transmission. Each is helped by its own learning algorithm based on Q-learning...
Recent advances in dynamic spectrum sharing have led to renewed focus on the structure of regulatory games between a primary user and a secondary user of a spectrum band. The primary user has to decide to what extent it invokes the services of the regulator, and the secondary user has to decide how to operate in the spectrum band. This paper builds on a mathematical model for light-handed regulation...
D2D cooperative communication is one of the essential requirements of the next generation networks. As human beings carry D2D devices, their emotions also play a prime role in cooperative data exchange. Several earlier works have discussed the various social factors; none has considered the significance of multiple social networks a user can have contact with. In this paper, we leverage the social...
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...
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