Optical Generation/Detection of Broadband Microwave Orbital Angular Momentum Modes

In this article, a novel electrically controlled optical broadband phase shifter (ECO-BPS) is proposed and experimentally investigated for broadband microwave orbital angular momentum (OAM) mode generation. Based on the proposed ECO-BPS and a 17-element circular antenna array, the effect of the phase error on the OAM mode quality is studied by...

Radio-over-fiber techniques for advanced in-building networks

With the Optical Frequency Multiplying technique, high-capacity radio-over-multimode fiber networks can be realized for in-building applications. Dynamic wavelength routing provides extra network flexibility for e.g. delivering capacity-on-demand, and can be realized with optical wavelength conversion. copyright © 2009 IEEE.

Improving quality of experience by adding device resource reservation to service discovery protocols

Current service discovery protocols (SDP) hardly provide information on the actual availability of resources in the network or a mechanism for (device) resource reservation. When the resources cannot serve all multiple client requests at the same time, conflicts happen, often involving heavy and frequent reconfiguration traffic. This paper...

Layer 2 and 3 contention resolution and radio-over-fiber in OCDMA PON for transparent optical access in personal networks

In this paper, we analyze, for the first time, the eminent role of optical transparent networking in personal networks. We show how an optical access network mitigates many issues with respect to connectivity and mobility management. A concrete personal network user-scenario deduces requirements for such an architecture. A combination of passive...

Proxying UPnP service discovery and access to a non-IP Bluetooth network on a mobile phone

The current service- and device discovery protocols are not platform- and network independent. Therefore, proxy servers will be needed to extend the range of IP-based discovery protocols to non-IP domains. We developed an architecture of a proxy that enables Universal Plug and Play (UPnP) devices and services to be discovered and accessed on the...

Architecture of a bi-directional Bluetooth-UPnP proxy

The current service- and device discovery protocols are not platform- and network independent Therefore, proxy servers will be needed to extend the range of IP-based discovery protocols to non-IP domains. We developed an architecture of a proxy that enables UPnP devices and services to be discovered on the Bluetooth network and vice versa, and...