Ethernet Passive Optical Networks (EPONs) have attracted considerable attention from industry as they offer a simple, highly flexible and cost effective solution to the problem of providing broadband access to a customer. In this paper, a new approach to bandwidth allocation in EPONs is presented where the Optical Line Terminator (OLT) has full control over the access mechanism. This results in...

We construct a simple model of monetary exchange where, as in Lagos and Wright (2003), trades take place in both centralized and decentralized markets. However, in constrast to Lagos and Wright, we allow for general preferences and introduce nonconvexities (indivisiblities) and sunspots. In the centralized market, agents can trade statecontingent commodities. We show that nonconvexities and sun...

The exponential growth in the usage of mobile networks along with the increasing number of User Equipments (UEs) are exacerbating the scarcity of frequency resources. Dense frequency reuse on the downlink of multiuser Orthogonal Frequency Division Multiple Access networks leads to severe Inter-Cell Interference (ICI) problems. Resource and power allocation techniques are required to alleviate t...

The correct estimate of individual thermal energy consumptions, and consequently, a fair heat cost allocation among the residents of apartment buildings with centralized heating systems, represents an important driving force towards energy saving, energy efficiency and the reduction of pollutant emissions. Nowadays, in those contexts where direct heat meters cannot be used because of the layout...

We analyze the allocation of objects in a network of caches which collaborate to service requests from customers. A thorough analysis of this problem in centralized and decentralized setups, both of which occur in practice, is essential for understanding the benefits of collaboration. A key insight of this paper is that an efficient implementation of cooperative cache management is possible sin...

In part I of this paper, a distributed and a centralized architecture for an optimal radio resource allocation aware of the traffic delay-tolerance nature, user subscription type, and application usage variations were developed. In the current article, a transmission overhead analysis of the aforementioned distributed and a centralized architectures is investigated and it is proved that the cen...

This study aims to investigate the effects of the centralized allocation and optimization of Taiwan’s railway resources (personnel and equipment) on the overall operational efficiency of its railway industry, based on the concept of two-phase centralized allocation and reallocation of resources. A Taiwan railway data analysis conducted in 2011 showed that the high overall output due to the effi...

Centralized approaches have several important drawbacks when employed to solve the resource allocation problem within an agent community. This paper seeks to provide scalable and distributed algorithms to solve this problem, avoiding centralized approach drawbacks. We propose adaptive and “anytime” algorithms which can be applied with any kind of contact network, any range for the utility value...

With a few exceptions, most of the research dealing with power allocation, and more recently power/rate allocation in DS-CDMA based networks has concentrated on centralized resource allocation algorithms for cellular systems where the base station keeps track of the service requirements and is thus responsible for the management of network resources. Adhoc WLANS, howeveq are configured as peer-...