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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 propose a spectrum-sharing mechanism for LTE networks taking into account the needs of different network operators and individual QoS requirements. It increases the utilization of spectrum by regarding operators' allocations of spectrum as a shared resource and sets user priorities for accessing this spectrum. In this paper, the example scenario given explains our approach in depth: it has better...
Currently mobile network operators are allocated spectrum bands on an exclusive basis. While this approach facilitates interference control, it may also result in low spectrum utilization efficiency. Inter-operator spectrum sharing is a potential method to enhance spectrum utilization. In order to realize it, a protocol to coordinate the actions of operators is needed. In this paper, we propose a...
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...
We develop the noncooperative game with individual pricing for the general multiple access channel (MAC) system without successive interference cancellation (SIC). Each user allocates its own power by optimizing the individual utility function with clever price adaptation. We show that by the proposed prices, the best response (BR) power allocation of each user converges rapidly. The individual prices...
Dynamic spectrum access using cognitive radio is regarded as a disruptive technology to improve spectrum efficiency. The deployment of dynamic spectrum access in cognitive radio network (CRN), however, raises a great challenge to meet the quality-of-service (QoS) requirements of cognitive radio (secondary) users while protecting licensed/primary users from harmful interference. While there have been...
Today's wireless networks are facing tremendous growth and many applications have more demanding quality of service (QoS) requirements than ever before. However, there is only a finite amount of wireless resources (such as spectrum) that can be used to satisfy these demanding requirements. We present a general QoS satisfaction game framework for modeling the issue of distributed spectrum sharing to...
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...
Coexistence of a cognitive radio network (CRN) with a primary user network (PUN) using spectrum underlay communication is modeled as a non-cooperative power and rate control game (NPRG). Main objective is to maximize the utility of each secondary user (SU) making them more energy efficient. Quality of Service (QoS) levels of SUs are guaranteed by max-min fair signal to interference plus noise ratio...
The primary-secondary user combined power allocation problem is considered in this paper. The problem is addressed in cognitive radio-based relay-assisted networks, where the primary user and the secondary user coexist and influent on each other, and the relays are expected to undertake partial tasks of collecting channel information, computing the optimal power allocation strategy, and informing...
In the present paper, a game theoretic framework of joint channel selection and power allocation for spectrum sharing in distributed cognitive radio networks is proposed. The objective of the proposed scheme is to investigate the performance of the lower- priority system in spectrum sharing where the lower-priority users utilize the spectrum by selecting the channel and transmit power while aware...
Aiming at the power control in cognitive radio, a power control game algorithm based on interference temperature is discussed, and non-cooperative power control game which is created by David Goodman is used. The efficiency function was mended, and we also designed a new pricing function with interference temperature. Compared with other power control game models, the simulation shows that the NPG-ITLP...
The cognitive radio (CR) based IEEE 802.22 is a standard for wireless regional area networks (WRANs), which is allowed to utilize TV bands when no interference is present to incumbents (i.e. TV receivers and microphones). Compared to other existing networks, it has larger coverage range and provides broadband access in rural and remote areas with performance comparable to DSL and cable modems. It...
In this paper we develop a game-theoretic framework for dynamic spectrum leasing in a cognitive radio network. Dynamic Spectrum Leasing, or DSL for short, is a new paradigm for efficient spectrum sharing in cognitive radio networks that was proposed recently. DSL allows the primary users to actively encourage, or discourage, secondary access depending on their instantaneous Quality-of-Service (QoS)...
As the limited spectrum resource becoming over crowded, cognitive wireless mesh networks have great flexibility to improve the spectrum utilization by opportunistically accessing the authorized frequency bands. One of critical challenges for realizing such networks is how to adaptively allocate transmit powers and frequencies among secondary users (SUs) while maintaining the quality of service (QoS)...
A parameter adaptively adjustable utility function based on the asymmetric sigmoid function is investigated for the non-cooperative power control game (NPCG) model in cognitive radio networks (CRN). Each secondary user (SU) can adaptively adjust the parameter to track along with the wireless interference environment for the optimal power strategy. From the fairness of view, a pricing function related...
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