E Gilon

Design of an Autonomic QoE Reasoner for Improving Access Network Performance

The access network has become an infrastructure for delivery of multimedia services, such as broadcast TV, voice over IP or video conferencing, to residential users . Compared to more traditional IP services such as e-mail, users demand a higher quality of experience (QoE) for these new services. To guarantee the quality of service (QoS), access network providers have deployed several service enablers, such as video on demand proxies. These techniques are only focused on the part between the service edge router and the access node, while the access network provider has only a limited view and impact on the home network environment. The QoE management in the home network is even more complicated by the wide range of user devices and the various home network configurations, containing wireless interfaces and home multimedia servers. This paper explores the architectural design of an autonomic intelligence component on the access node that determines required QoE enhancing actions, such as adjusting the video bit rate, by taking into account the specifics of the home network and the requested services. The viability of an analytical, fuzzy logic and neural network approach to implement an intelligent, autonomic reasoner is discussed, and experimental results are presented.

Design of a generic and high performance CMOS burst mode laser driver

An innovative 155 Mb/s burst-mode laser driver including a thermometer was designed in digital 0.35 /spl mu/m CMOS. The laser driver is a digitally programmable current source with a very high resolution (12 bit). A single array of 1030 unit transistors provides both the bias and the 155 Mb/s drive current. According to our knowledge, both currents sharing the same high-resolution transistor array together with a novel automatic power control loop is unique in a laser driver.

MUSE: Challenges to Integrate the Multi-Disciplinary Field of BB Access in One Project

The present paper discusses the managerial challenges of the MUSE integrated project on multi service broadband access. It addresses different aspects such as matrix organisation, project office, consensus process, standardisation, dissemination, and quality control.

A new generation of multi-service access networks: results of MUSE phase I

The paper gives a survey of the major results achieved by the European MUSE project during its first phase. The research covers multi service access architectures, first mile solutions, residential gateways and their integration in end-to-end lab trials.