Outdoor Trial of an Analog-only Small Cell Unit with Millimeter-Wave Wireless Backhaul for Mobile Communication System

This paper analyzes the achievable signal quality of a novel system architecture for small cell units with integrated millimeter-wave wireless backhaul. In contrast to existing systems, the data signal on the backhaul link uses the same 3GPP compliant signal as with the access link serving the users. The small cell unit only consists of a simple frequency conversion from backhaul to access frequencies. The sufficient linearity and phase noise performance at 60GHz was proven in an outdoor long-distance trial with measurements of an LTE signal easily meeting the access link 3GPP ACLR and EVM requirements. Moreover, a successful outdoor test of our full end-to-end LTE mobile communication system with a commercial user device demonstrated the required high data rates.

Recent Publications

August 09, 2017

A Cloud Native Approach to 5G Network Slicing

  • Francini A.
  • Miller R.
  • Sharma S.

5G networks will have to support a set of very diverse and often extreme requirements. Network slicing offers an effective way to unlock the full potential of 5G networks and meet those requirements on a shared network infrastructure. This paper presents a cloud native approach to network slicing. The cloud ...

August 01, 2017

Modeling and simulation of RSOA with a dual-electrode configuration

  • De Valicourt G.
  • Liu Z.
  • Violas M.
  • Wang H.
  • Wu Q.

Based on the physical model of a bulk reflective semiconductor optical amplifier (RSOA) used as a modulator in radio over fiber (RoF) links, the distributions of carrier density, signal photon density, and amplified spontaneous emission photon density are demonstrated. One of limits in the use of RSOA is the lower ...

July 12, 2017

PrivApprox: Privacy-Preserving Stream Analytics

  • Chen R.
  • Christof Fetzer
  • Le D.
  • Martin Beck
  • Pramod Bhatotia
  • Thorsten Strufe

How to preserve users' privacy while supporting high-utility analytics for low-latency stream processing? To answer this question: we describe the design, implementation and evaluation of PRIVAPPROX, a data analytics system for privacy-preserving stream processing. PRIVAPPROX provides three properties: (i) Privacy: zero-knowledge privacy (ezk) guarantees for users, a privacy bound tighter ...