January 10, 2017

On Multiple-domain Cooperative Diversity for Communications with Distributed Content in G.hn Networks

  • Chahibi Y.
  • Gacanin H.
  • Ligata A.

Currently available in-house communication channels have been identified as suitable for broadband data communication. To improve the in-house performance, different diversity techniques, such as multiple-input multiple-output (MIMO) schemes have been introduced in power line communication (PLC) systems. However, due to different physical characteristics of mediums, the implementation of spatial diversity at the physical layer across different domains in G.hn is a challenging task. To this end, we present a diversity mechanism based on cross-layer classification suitable for multiple-domain G.hn networks, where the content is either kept within the same domain or distributed over different domains. The multiple-domain property is exploited to provide several copies of the received signal and improve the transmission performance. The mediums over which the signal copies are transmitted are chosen in a way to satisfy given quality of service (QoS) requirements. The performance of the diversity scheme is evaluated by computer simulation to illustrate the advantage of the proposed method.

View Original Article

Recent Publications

January 01, 2018

Fair Dynamic Spectrum Management for QRD-Based Precoding with User Encoding Ordering in Downstream G.fast Transmission

In next generation DSL networks such as G.fast, employing discrete multi-tone transmission in high frequencies up to 212 MHz, the crosstalk among lines reaches very high levels. To precompensate the crosstalk in downstream transmission, QRD-based precoding has been proposed as a near-optimal dynamic spectrum management (DSM) technique. However, the performance ...

January 01, 2018

Practical Mitigation of Passive Intermodulation in Microstrip Circuits

This paper presents new experimental evidence and a novel practical approach for mitigation of passive intermodulation (PIM) in microstrip circuits fabricated on commercial printed circuit board laminates. The mechanisms of distributed PIM in microstrip circuits are reviewed and a phenomenology of PIM generation due to locally enhanced electromagnetic fields at ...

January 01, 2018

Efficient Cooperative HARQ for Multi-Source Multi-Relay Wireless Networks

In this paper, we compare the performance of three different cooperative Hybrid Automatic Repeat reQuest (HARQ) protocols for slow-fading half-duplex orthogonal multiple access multiple relay channel. Channel State Information (CSI) is available at the receiving side of each link only. Time Division Multiplexing is assumed, where each orthogonal transmission occurs ...