The allocation of scarce, reusable resources over time to interconnected tasks in uncertain and dynamic environments in order to optimize a performance measure is a general problem which arises in many real-world domains. The paper overviews several recent distributed approaches to this problem and compares their properties, such as the guarantees of finding a (near-) optimal solution, their ro...

Cloud computing is the product of the evolution of calculation. It is a new distributed computing model. As more and more people put into the research and applications on cloud computing, the technology of computing becomes more and more widely used. Cloud computing has a huge user group. It has to deal with a large number of tasks. How to make appropriate decisions when allocating hardware res...

Cloud computing is the product of the evolution of calculation. It is a new distributed computing model. As more and more people put into the research and applications on cloud computing, the technology of computing becomes more and more widely used. Cloud computing has a huge user group. It has to deal with a large number of tasks. How to make appropriate decisions when allocating hardware res...

To achieve the requirement of high data rate, low latency, user fairness for next generation wireless networks, proper designing of cross-layer optimized dynamic resource allocation algorithm is prerequisite. In this paper, we propose a dynamic resource allocation scheme in Orthogonal Frequency Division Multiple Access (OFDMA) systems to optimize the non real-time (NRT) traffic, which requires ...

In this paper, we study resource allocation and adaptive modulation in SC-FDMA which is adopted as the multiple access scheme for the uplink in the 3GPP-LTE standard. A sum-utility maximization (SUmax), and a joint adaptive modulation and sum-power minimization (JAMSPmin) problems are considered. Unlike OFDMA, in addition to the restriction of allocating a sub-channel to one user at most, the m...

This contribution deals with the resource allocation in orthogonal frequency division multiplex (OFDM) systems used in the context of cognitive radio. Two main components of the overall system are spectrum sensing using the Kolmogorov-Smirnov significance test and resource (bit) allocation exploiting the results from sensing. The spectrum sensing method performance is firstly evaluated for sign...

We propose a novel resource allocation scheme, which can reduce MAP overhead and maximize the throughput in the MIMO-OFDM systems. In the message based broadband access system, we need to minimize the MAP overhead since the excessive MAP overhead causes degradation of system throughput. Increasing the size of resource allocation unit can reduce MAP overhead. However, multiuser diversity gain be...

In cognitive radio networks (CRN), resource should dynamically be assigned to the users with respect to sensed radio atmospheres. Many works has been done for dynamic allocation but it is not practically easy because the secondary network is very difficult to know the right knowledge of dynamic radio atmospheres in CRN. In this object we study the different methods of dynamic resource allocatio...

Orthogonal Frequency Division Multiple Access (OFDMA) is the promising technique for ever increasing demand of high data rate services. This paper proposes the Resource allocation issues for multiuser wireless transmissions, based on orthogonal frequency division multiple Access (OFDMA) and convex optimization techniques which are widely used in the design and analysis of variety of communicati...

In this paper, we exploit the uplink radio resource allocation considering proportional fairness among users in heterogeneous wireless networks. Meanwhile, multi-mode user terminals are assumed to have the capability of using multiple radio access technologies simultaneously. To this end, a joint optimization problem is formulated for power and bandwidth allocation for uplink transmission. Sinc...