We propose a forward resource reservation (FRR) scheme to reduce the data burst delay at edge nodes in optical burst switching (OBS) systems. We also explore algorithms to implement the various intrinsic features of the FRR scheme. Linear predictive filter (LPF)-based methods are investigated and demonstrated to be effective for dynamic burst-length prediction. An aggressive resource reservatio...

This paper considers an overbooking problem with multiple reservation and inventory classes, in which the multiple inventory classes may be used as substitutes to satisfy the demand of a given reservation class (perhaps at a cost). The problem is to jointly determine overbooking levels for the reservation classes, taking into account the substitution options. Such problems arise in a variety of...

This paper studies media access protocols which support collision-free broadcast/multi-cast communication for optically connected star-coupled systems with Wavelength Division Multiple Access channels. An early hybrid access protocol, consisting of reservation and of receiver channels pre-allocation, allows reservation for exactly one WDM channel per node during the reservation phase. We extend...

In the ICEBERG project at U. C. Berkeley, we are developing an Internet-based integration of telephony and data services spanning diverse access networks. Our primary goals are extensibility, scalability, robustness and personalized communication. We leverage the Internet’s low cost of entry for service creation, provision, deployment, and integration. In this article, we present our solutions ...

In designing a video broadcasting system, the delay preference of a user is traditionally regarded as unknown. In fact, such preference can be known upon user’s arrival by employing some techniques such as i) delay-dependent charging, where users are offered different levels of pay-per-view (PPV) depending on the maximum delay they are willing to tolerate; or ii) reservation, where a user speci...

Using a simple analytical model, this paper addresses the following question: Should the Internet retain its best-e ort-only architecture, or should it adopt one that is reservation-capable? We characterize the di erences between reservation-capable and best-e ort-only networks in terms of application performance and total welfare. Our analysis does not yield a de nitive answer to the question ...

The current Internet only ooers best-eeort service. In recent years much research eeort, and IETF standardization activity, has been devoted to extending the Internet architecture to support reservations. However, the wisdom of such an extension continues to remain in doubt. Using a simple analytical model, this paper addresses the following question: Should the Internet retain its best-eeort-o...

We analyse and illustrate two approaches that we have developed for providing reservations to ows. The rst approach uses the explicit reservation model: a traac proole is negotiated between users and the network. ATM and RSVP are two examples for this approach. In this paper we describe our experience in the ACT project EXPERT (AC094) with the explicit reservation model in the context of ATM. W...

High peak values of transmission signals in wireless communication systems lead to wasteful energy consumption and out-of-band radiation. However, reducing peak values generally comes at the cost some other resource. We provide a theoretical contribution towards understanding the relationship between peak value reduction and the resulting cost in information rates. In particular, we address the...

This paper examines a two stage model of product choice with elastic demand. The duopolists choose locations in the initial stage and compete in prices in the next stage. The consumers' demand varies inversely with price. The existence of Nash equilibrium prices in the second stage for each pair of locations is proved. The equilibrium locations chosen in the rst stage are unique and symmetric. ...