The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this work, the energy-aware cooperative multi-media transmission strategy for relay-assisted cellular networks is modeled as an evolutionary game. Its advantages are to incorporate the dynamics of environment and strategy decision into the multimedia transmission process without the knowledge of complete private information of all nodes. Specifically, the replicator dynamics is applied to model...
In this letter, we propose a distributed cooperation policy selection scheme for energy-constrained ad hoc networks. In particular, we model a correlated equilibrium (CE)-based cooperation policy selection game where the individual utility function is designed from the global energy efficiency perspective. We derive the condition under which the CE is Pareto optimal, and propose a decentralized algorithm...
In this article, we propose a semi-distributed resource allocation framework for the resource optimization in multi-cell uplink cooperative orthogonal frequency division multiplexing systems. Specifically, we model the resource allocation framework as an optimal problem. This optimization problem is divided into two steps. First, using integer programming, we achieve the joint relay selection and...
Subcarrier and power allocation plays an important part in optimizing the performance of OFDMA systems. However, inter-cellular interference is often neglected in resource allocation. In this paper, with the inter-cell interference taken into account, we propose a subcarrier and power allocation framework based on Game Theory in uplink OFDMA multi-cellular systems. In this algorithm, the subcarrier...
Sometimes, the source node can't satisfy the QoS requirement with the only relay node. It is the better choice to need multiple relay nodes. In other case, the number of hops between the source node and the far off destination node may be reduced, with the help of several relay nodes. But the power allocation in multi-relay cooperative communication is complex. We adopt coalitional game theory to...
The α-β algorithm is an efficient technique for searching game trees. In this paper, we present the detailed implementation of parallel α-β algorithm on our Engineering and Scientific Computation Accelerator (ESCA) system, which is a heterogeneous multi-core SIMD (Single Instruction stream Multiple Data stream) architecture to accelerate the compute-intensive parallel computing in high performance...
In the paper, we consider the interference as a detriment to the performance of the relay enhanced cellular system. Then we build up the interference channel model based on amplify-and-forward protocol and decode-and-forward protocol, respectively. The interference comes not only from the adjacent cells, but also from the inner of the same cell. Moreover, proper power allocation can obtain a good...
In this paper, a joint power and subcarrier allocation scheme in single-cell uplink OFDMA systems is proposed based on game theory. Our goal is to maximize the power efficiency of each user under peak power constraint. For the purpose, a utility function is designed which can enhance the rate per joule of energy consumed greatly, and the existence and uniqueness of the Nash equilibrium of the function...
In this letter, we focus on a subcarrier and power allocation scheme in uplink OFDMA systems, where each user has not only the different power constraints, but also was limited by the different rates. A subcarrier and power allocation algorithm is proposed. In this algorithm, the subcarrier allocation is based on the normalized channel gain, and the power allocation is based on the pricing function,...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.