We study network utility maximization (NUM) in the context of cellular single station association (SSA) policies, which assigns each mobile user (MU) to a single base station (BS). We measure an SSA policy in terms of the induced α-proportional fairness utility of each user’s downlink rate, summed over all users. The general SSA NUM problem involves choosing an optimal association from MUs to B...

Ethernet Passive Optical Network (EPON), an access network technology, has drawn considerable research attention in recent years. EPON can be implemented in centralized or decentralized architecture in the access network. Most of the researches were focused on the centralized architecture, where bandwidth allocation decisions for Optical Network Units (ONUs) are made by distant Optical Line Ter...

It is increasingly difficult to satisfy growing demands for spectrum with the conventional policy of fixed spectrum allocation. To overcome this problem, flexible/dynamic spectrum sharing methods that can significantly improve spectrum utilization of the spectrum have gained increasing interest recently. This paper presents two dynamic spectrum sharing approaches, a centralized and a decentrali...

In this paper, a centralized resource allocation model based on priority schemes is first proposed for best-effort networks in which traffic from all priorities are fully multiplexed. Then a priority pricing scheme is used to distribute the resource allocation process. Users and the network exchange their characterizations on QoS, resource demand and prices via contract negotiation. The contrac...

In this paper, the problem of fair scheduling in a wireless network is formulated as an assignment problem and an Optimal Radio Channel Allocation (ORCA) strategy is proposed for fair bandwidth allocation in a centralized manner. Simulation results show that the performance improvement due to ORCA can be significant compared to other wireless fairqueuing mechanisms proposed in the literature su...

Problems of allocating joint costs in a reasonable way arise in many practical situations where people decide to work together to save costs. Cost allocation methods based on game theoretical concepts take into account the strategic aspects of cost allocation situations. We give a survey of cost allocation methods based on the nucleolus and the Shapley value, and introduce also a new one, the s...

Workers and operators in sanitary landfill sites face the health risk due to the constant exposure to the toxic solid, liquid, and gaseous by-products of the waste materials. One solution to this problem is automation technology that can increase productivity and quality as well as safety. But, developing an automated system for landfill operations is usually a complex task due to the dynamic a...

Increasingly demanding computation requirements and tighter energy constraints have motivated distributed and/or hierarchical register file (dhrf) organizations as a mean to efficiently sustain a sufficient alu utilization in processors targeting embedded applications with many alus. Compared to conventional centralized register file organizations, dhrfs lead to tighter coupling between registe...

Grid resource allocation is a complex task that is usually solved by systems relying on a centralized information system. In order to create a lightweight scheduling system, we investigated the potential of auctions for resource allocation. Each resource provider runs an agent bidding on the execution of software with respect to local restrictions. This way, the information system becomes obsol...