Optimal Channel Allocation with Scalable TTI for Heterogeneous Services

The rapid growth in the number of varieties of connected devices requires 5G wireless systems to cope with a very heterogeneous traffic mix. As a consequence, the use of a fixed Transmission Time Interval (TTI) during transmission is not necessarily the most efficacious method for the simultaneous service of such ...

Improving Resource Efficiency with Partial Resource Muting for Dense Wireless Networks

Achieving good tradeoff between the resource reuse and the interference avoidance is the key challenge for 5G dense wireless networks. In this paper we analyze the resource utilization region and determine the transition point of the load budget in which the networks move from an efficient noise-limited resource utilization region ...

Anticipatory Networking in Future Generation Wireless Networks: a Survey

The next trend for information technology is addressing issues before they become problems. This paradigm made modern solutions such as recommendation systems a ubiquitous presence in digital transactions nowadays. Anticipatory networking extends the idea to communication technologies by studying patterns and periodicity in human behaviors and exploiting them for network ...

A Power-Enhanced Femto Cooperative Scheme in OFDM Heterogeneous Networks

  • Khan Zii Khan Zuhaib
  • Moonen M.
  • Pollin Sofie
  • Torrea-Duran R.
  • Tsiaflakis P.

Femtocells constitute a promising solution to increase the data rates of next generation wireless demands, not only by extending the coverage, but also by acting as relays to achieve diversity gains. However, when deployed in areas already covered by macrocells, the interference levels are also expected to increase. Time multiplexing ...

Control Channels for beyond LTE-Advanced

  • Hu T.
  • Jiang Q.
  • Liu Z.

With the rapid deployment of LTE roll out by Service Provides worldwide establishing it as the dominant 4G wireless technology, standardization activities of releases beyond LTE-Advanced are currently being actively progressed in 3GPP RAN. Key enhancements such as Further Enhancement of Downlink MIMO, Heterogeneous Networks, and Carrier Aggregation in LTE-Advanced ...

Enabling Cloud Connectivity Using SDN and NFV Technologies

  • Derakhshan F.
  • Grob-Lipski H.
  • Roessler H.
  • Schefczik P.
  • Soellner M.

Cloud environments play an important role for network and service providers. Cloud network providers require ubiquitous, broadband and minimum-delay connectivity from network providers. There are different realizations of cloud connectivity based on the Software Defined Networking (SDN) and the Network Function Virtualization (NFV). In this paper we introduce a new ...

Robustness Design of Base Station Transmitter based on Test Methodology

  • Gao J.

Robustness design is becoming mature in cybernetics system, neither in radio system. But the quality of Base Station in business field is mostly decided by robustness design. Based on the deeply understanding BTS system architecture and system integration, the possible issues are pointed out. And based on comparative test method, ...

Presentation of a Quad Band Cube at the Open Day of Bell Labs

  • Luz G.
  • Pascht A.
  • Wiegner D.

Presentation of a Quad Band Cube at the Open Day of Bell Labs

Networks at the nexus of new value creation

Is the link between technology and productivity dead? This is a question on the minds of economists, policy makers and technocrats around the world. The decades old debate on the productivity paradox the global slowdown in productivity growth despite a rapid acceleration in technology progress still rages on. Bell Labs ...

Central Offices transformation strategy for FutureX

Now, the CSPs (Communication Service Providers) are planning to capture new future digital services revenue and offset legacy service revenue decline by transforming themselves into Digital Services Providers (DSP) by adopting the FutureX vision centered around cloud-integrated networks. Most legacy CSPs own large number of Central Office (CO) buildings often ...

Applications of Asymptotic Functions in Wireless Networks

Many wireless technologies have greatly benefited from developments in nonlinear analysis, and in particular in the field of convex analysis. A key concept that has made convex and nonconvex analysis an important tool in science and engineering is the notion of asymptotic function, which is often omitted in many studies ...

Scheduling data transfers for Dynamic Pricing

  • Bhatia R.
  • Gupta B.

The rapid increase in data traffic is making mobile networks highly congested. Paradoxically, even such congested networks have an abundance of underutilized capacity due to significant inefficiencies created by uneven data usage. Solutions such as dynamic congestion based pricing can help tap this stranded capacity. Motivated by these trends we ...

Neighbor Discovery in LTE-A Device-to-Device Networks

  • Li D.

In recent years, device-to-device (D2D) communications underlaying cellular networks received much attention, due to great potential to enhance spatial spectrum efficiency. Neighbor discovery is a fundamental aspect of D2D communications, which allows users to discover and identify devices and/or services in neighborhood. In this paper, we proposed a neighbor discovery ...

Affective Computing Applied to Videoconferencing

  • Gonguet A.
  • Marilly E.
  • Martinot O.
  • Obled C.

SlideWorld has introduced immersion in videoconferencing using static heuristics. Affective computing will allow dynamic and more efficient immersion thanks to user observation, context awareness, emotions understanding Based on this trend, we developed a videoconferencing demonstrator featuring dynamically orchestrated video streams to maximize users’ immersion, based on various measurements (events, attention ...

An active-node-assisted method for power saving in optical access network

  • Chang Q.
  • Gao Z.
  • Gui L.
  • Hu Z.
  • Xiao S.

We propose a kind of assisting control node in optical access network, which can reduce the power consumption of ONUs by a electro-optic switch in remote node. The power consumption of the whole network can be reduced by nearly 50% when the amount of data receiving dependant power is up ...

A High-Gain InP D-HBT Driver Amplifier with 50 GHz Bandwidth and 10 Vpp Differential Output Swing at 40 Gb/s

A high-performance and compact 40 Gb/s driver amplifier was realized in a 1.2 um emitter double-heterojunction InGaAs/InP HBT (D-HBT) technology. The 2-stage differential driver features a lumped input and fully distributed output stage and delivers more than 10 Vpp output swing at 40 Gb/s with 700 fs RMS jitter and ...

A Learning Life-Cycle to Speed-up Autonomic Optical Transmission and Networking Adoption

Autonomic Optical Transmission and Networking requires from Machine Learning (ML) models to be trained with large datasets. However, the availability of enough real data to produce accurate ML models is rarely ensured since new optical equipment, techniques, etc., are continuously being deployed in the network. Although an option is to ...

Optimized Combination of Conventional and Constrained Massive MIMO Arrays

A combination of low cost constrained massive multiple-input-multiple-output (MIMO) and conventional arrays for constructing receiver signal points is investigated. The constrained radio frequency (RF) front ends are limited to on/off switching of antenna elements. A few full RF frontends are shown to compensate for the signal errors of the constrained ...

Transient Thermal Management of a Handset Using Phase Change Material (PCM)

The power density of portable electronic devices continues to increase because packaging advances reduce their size even as features are added and enhanced. Designing thermal management systems to accommodate steady state conditions as opposed to fixed duty cycles can substantially increase cost, size, and weight. The feasibility of transient thermal ...