Resource reservation in advance (ReRA) enables scheduling and allocation of resources at an early stage in time. This way, the availability of resources can actually be guaranteed for the point in time when the resources are needed. As opposed to that, current reservation protocols such as RSVP perform an "immediate" reservation without advance scheduling. They can therefore suffer shortage of ...

Advance reservation is an important part of grid computing. It guarantees that resources will be available at a pre-determined time to participate in the execution of a grid application. The advance reservation and scheduling of optical networks are key in guaranteeing that enough bandwidth, i.e., lightpaths, will be available for an application during a predetermined interval of time. This pap...

Grid markets today have very limited capabilities with regards to reservations. However, it is vital that customers are given the ability to purchase resources far in advance of the actual usage which necessitates the existence of a sold reservation model. While this is not an issue of great importance in today’s Grid markets, reservation schemes must be developed to enable a sustainable operat...

An OpMiGua node integrates a packet switch for low priority traffic and a circuit switch for high priority traffic. Both traffic classes share the same input and output ports using time division multiplexing, but absolute priority is given to circuit switched packets. The circuit switched packets do not experience contention at output ports and are not subject to delay jitter; hence a guarantee...

The goal of this paper is to study the applicability of a combinatorial optimization model in grid resource optimization. The advent of grid computing and demand for QoS guarantees call for a need of advance reservation mechanisms in order to coordinate resource sharing between autonomous partners. This term means the guarantee of providing specific resources at a specific time. The paper assum...

Five-Phase Reservation Protocol (FPRP) is a single channel, Time Division Multiplex Access (TDMA) based broadcast scheduling protocol for Ad Hoc network. A modified Medium Access Control (MAC) protocol based on FPRP for decreasing packet delay is proposed in this paper. In FPRP, There are quite a lot of reservation cycles in slots is not fully used, especially in latter slots, for the reason th...

Currently, the Immediate reservation (IR) and advance reservation (AR) are the two main reservation mechanisms implemented on large-scale scientific optical networks. We can also provide hybrid IR/AR scenarios. Nonetheless, such scenarios can increase the blocking of IR if no quality-of-service (QoS) policies are considered. A solution could be to quantify such blocking performance is that to i...

Ad hoc networks are wireless networks composed of mobile devices with limited power and transmission range. Advance reservations are a useful method to allocate resources of various kinds in many different environments, and especially be useful for wireless ad hoc networks that require network quality of service, which need advance reservation to support handovers for streaming video. It is key...

Dynamic reservation multiple access (DRMA) has been proposed to improve the spectrum e ciency of the integrated voice and data services. In that protocol, although the xed reservation overhead is avoidable, a data terminal that transmits a data message with multiple packets has to reserve a slot for each packet transmission. In this paper, to improve the data message delay without degrading the...

IEEE 802.11 DCF is an asynchronous and distributed MAC protocol which does not require the existence of a central controller for medium access coordination. This flexibility, which is due to DCF’s contention-based nature, comes at the expense of the overhead associated with contention resolution. The overhead consists of frame collision time and channel idle time, which is particularly severe w...