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Performance Analysis of Relay-based Two-way D2D Communications with Network Coding.

Jun Huang1, Hamid Gharavi1

  • 1National Institute of Standards and Technology, Gaithersburg, MD 20899.

IEEE Transactions on Vehicular Technology
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Summary
This summary is machine-generated.

Network coding enhances dual-hop, two-way device-to-device (D2D) communications. This approach improves system throughput by approximately 25% and reduces end-to-end packet loss probability by about 10% under specific link conditions.

Keywords:
Relay-based D2D communicationslink outage probabilitynetwork codingpacket loss probability

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Area of Science:

  • Wireless Communications
  • Information Theory
  • Network Engineering

Background:

  • Device-to-device (D2D) communication is crucial for future wireless networks.
  • Optimizing performance in D2D networks requires advanced techniques like network coding.
  • Understanding the interplay between link reliability and overall system performance is essential.

Purpose of the Study:

  • To develop an analytical method for evaluating D2D communication performance.
  • To assess the impact of network coding on dual-hop, two-way, and asymmetric D2D systems.
  • To quantify improvements in throughput and packet loss probability.

Main Methods:

  • Established a relationship between link outage probability (LOP) and packet loss probability (PLP).
  • Defined PLP as a function of LOP for analytical modeling.
  • Investigated system throughput and end-to-end packet loss probability (E2EPLP).

Main Results:

  • Network coding significantly boosts throughput (approx. 25%) when link PLPs are asymmetric.
  • Network coding reduces E2EPLP (approx. 10%) under asymmetric link PLP conditions.
  • The benefits of network coding are contingent on the relative PLPs of opposing directional links.

Conclusions:

  • The proposed analytical approach offers valuable insights into network coding for D2D networks.
  • Network coding is a promising technique for enhancing D2D communication efficiency.
  • Asymmetric link conditions in D2D networks can be effectively leveraged with network coding.