On the Energy Efficiency of Multi-hop Cooperative Relaying Power Line Communication Systems

  • Augustine Ikpehai
  • Bamidele Adebisi
  • Gacanin H.
  • Galymzhan Nauryzbayev
  • Khaled M. Rabie

In this paper, we analyze the energy efficiency performance of multi-hop cooperative relaying power line communication (PLC) systems. In order to further minimize the energy consumption of such systems, we study the performance of incremental decode-and-forward (IDF) relying over the lognormal fading PLC channel contaminated with impulsive noise. For more ...

BGA Interconnection Reliability in Mirrored Module Configurations

Interconnection dimensions are becoming more important due to electrical signal timing requirements and stray effects, such as unwanted inductance, leading to increasingly denser packaging. One way to shorten the signal path is to use mirrored structures, where the components are placed on opposite sides of the printed circuit board (PCB). ...

25-Gb/s transmission over 2.5-km SSMF by silicon MRR enhanced 1.55-μm III-V/SOI DML

The use of a micro-ring resonator (MRR) to enhance the modulation extinction ratio and dispersion tolerance of a directly modulated laser (DML) is experimentally investigated with a bit rate of 25 Gb/s as proposed for the next generation data center communications. The investigated system combines a 11-GHz 1.55-μm directly modulated ...

Compression-Based Compressed Sensing

  • Erkip E.
  • Jalali S.
  • Poor H.
  • Rezagah F.

Modern compression codes exploit signals’ complex structures to encode them very efficiently. On the other hand, compressed sensing algorithms recover “structured” signals from their under-determined set of linear measurements. Currently, there is a noticeable gap between the types of structures used in the area of compressed sensing and those employed ...

Proactive Fiber Break Detection Enabled by In-Service Coherent Transceiver

  • Boitier F.
  • Chavarria Valenzuela L.
  • Dutisseuil E.
  • Lemaire V.
  • Pesic J.

we demonstrate on a real-time PDM-QPSK receiver coupled with trained learning machine that digital signal processing used in coherent technologies enable a concurrent monitoring of mechanical events occurring on optical fiber enabling proactive fiber break detection on deployed optical networks.

Hybrid Resource Allocation for Millimeter-Wave NOMA

  • António Morgado
  • Christos Politis
  • Gacanin H.
  • Jonathan Rodriguez
  • Kazi Mohammed Saidul Huq

The ever-increasing demand for data traffic for future wireless systems poses challenging requirements for 5G wireless communications, such as high spectral efficiency, better interference management, and extensive connectivity. These challenges open the possibility to use non-orthogonal multiple access (NOMA) schemes in future radio access networks. In these schemes, the users ...

Bit- and Power-Loading-A Comparative Study on Maximizing the Capacity of RSOA Based Colorless DMT Transmitters

  • Bonjour R.
  • Brenot R.
  • Gebrewold S.
  • Hillerkuss D.
  • Leuthold J.

We present a comparative study of the capacity increase brought by bit- and power-loading discrete multi-tone (DMT) modulation for low-cost colorless transmitters. Three interesting reflective semiconductor optical amplifier (RSOA) based colorless transmitter configurations are compared: First, an amplified spontaneous emission (ASE) spectrum-sliced source; second, a self-seeded RSOA fiber cavity laser ...

A theoretical analysis of buffer occupancy for Intermittently-Connected Networks

  • Boero L.
  • Cello M.
  • Gnecco G.
  • Marchese M.
  • Patrone F.
  • Sanguineti M.

Network congestion is a well-known problem that may heavily affect the overall network performance. Congestion control approaches in Intermittently-Connected Networks (ICNs) differ from those used in classical networks, since the assumptions of ``universal connectivity{''} of the nodes and ``global information{''} about the network do not hold. In this paper, an ...

Practical LTE and WiFi Coexistence Techniques Beyond LBT

  • Khawer M.
  • Ling J.
  • Lopez-Perez D.

Coexistence with WiFi is the key issue for unlicensed band LTE. The main coexistence mechanism is listen-before-talk, whereby radio frequency energy is sensed over a short period and compared to a threshold. Given the default energy thresholds, the energy sensing range is much less than the cell range. Either technology ...

MOBILE BANDWIDTH IMPROVEMENT TECHNIQUES

  • Gurbani V.
  • Loreto S.
  • Subramanyan R.

BEHAVIOR RECOGNITION BASED ON WI-FI CSI : PART 1

  • Chen Y.
  • Guo B.
  • Lane N.
  • Liu Y.
  • Yu Z.

Physical-Layer Security With Full-Duplex Transceivers and Multiuser Receiver at Eve

  • Ansari I.
  • Mahmood N.
  • Mogensen P.
  • Popovski Petar
  • Qaraqe K.

Full- duplex communication enables simultaneous transmission from both ends of a communication link, thereby promising significant performance gains. Generally, it has been shown that the throughput and delay gains of full-duplex communication are somewhat limited in realistic network settings, leading researchers to study other possible applications that can accord higher ...

Organic visible light communications: Methods to achieve 10 Mb/s

  • Bausi F.
  • Cacialli F.
  • Darwazeh I.
  • Ghassemlooy Z.
  • Haigh P.
  • Le Minh H.
  • Le S.

In this review, we summarise methods towards achieving 10 Mb/s connectivity for visible light communications links utilising organic polymer based light-emitting diodes as the transmitter. We present two different methods; on-off keying supported by least mean squares equalisation and orthogonal frequency division multiplexing without equalisation.

Timing mismatch tolerance of 16QAM OFDM based spectrum slicing optical transmission systems

  • Le S.
  • Megret P.
  • Nguyen T.
  • Wuilpart M.

We propose an effective synchronization and digital signal processing scheme for OFDM spectrum slicing transmissions in the presence of a large timing mismatch. Without loss of generality, a 76.8 Gbaud DP-16QAM OFDM three-slice spectrum slicing system was considered.

Multicarrier approaches for high-baudrate optical-fiber transmission systems with a single coherent receiver

  • Compernolle L.
  • He Q.
  • Le S.
  • Nguyen T.
  • Patrice Mégret
  • Wuilpart M.

In this paper, we show the remarkable timing error (TE) and residual chromatic dispersion (CD) tolerance improvements of the filte bank multicarrier (FBMC) over orthogonal frequency division multiplexing (OFDM) for high-baudrate spectral slicing transmitter and single coherent receiver transmissions. For a 512 Gb/s 16 quadrature amplitude modulated (16QAM) spectrum slicing ...

Integrated ultra-wide band wavelength-tunable hybrid external cavity silicon-based laser

  • Brenot R.
  • Chen Y.
  • De Valicourt G.
  • Debregeas H.
  • Dong P.
  • Earnshaw M.
  • Verdier A.

We demonstrate two novel hybrid lasers with the same III-V gain medium. An hybrid III-V/Si laser and its III-V/SiO2 counterpart exhibit high fiber-coupled output power without booster SOA (up to +13 dBm for III-V/Si and +10 dBm for III-V/SiO2) and a record tuning range (respectively 95 nm and 66 nm) ...

Enforcing Users Constraints In Dynamic Software-Defined Networks Of Devices

  • Boussard M.
  • Bui D.
  • Peloso P.

Paper to Netsoft 2016 detailing the policies defined for multi-tenants sharing of devices

Quality of experience-aware enhanced inter-cell interference coordination for self organized HetNet

  • Morel M.
  • Randriamasy S.

Fifth-generation (5G) mobile networks are geared to support future services such as enhanced Mobile BroadBand. They already face dramatic data traffic increase mainly due to the generalized demand by mobile consumers for Full High Definition/High Definition (Full HD/HD) video services. The most viable solution to solve this problem is to ...

Pilot allocation for multi-cell tdd massive mimo systems

  • Gacanin H.
  • H. Furukawa
  • O. Muta
  • W. Hao

Pilot contamination due to the pilot reuse in adjacent cells is a very serious problem in time-division duplex (TDD) based massive multi-input multiple-output (MIMO) system. Therefore, the pilot-user allocation is significant for improving the performance of the system. In this paper, we formulate the pilot-user allocation optimization problem for maximizing ...

Investigation of Non-Orthogonal Multiple Access Techniques for Future Cellular Networks

  • Ghosh A.
  • Keating R.
  • Ratasuk R.

There is an expected explosion in the number of users which will be connected to future wireless networks with the continued expansion of the Internet of Things. New technologies are needed in order to keep up with this connectivity demand. Non-orthogonal multiple access (NOMA) is one technology which seeks to ...