Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 35,
  • Issue 22,
  • pp. 4980-4993
  • (2017)

Color Planning and Intercell Interference Coordination for Multicolor Visible Light Communication Networks

Not Accessible

Your library or personal account may give you access

Abstract

We address the intercell interference coordination for the indoor attocell multicolor visible light communication (VLC) network under lighting constraints. In the multicolor VLC system, soft frequency reuse-based interference coordination is adopted, which adjusts the signal deviations transmitted on cell-edge color and cell-center color. A static scheduler is proposed to increase the signal-to-interference-plus-noise ratio (SINR) for the cell-edge region, given that the SINR for the cell-center region is larger than a certain threshold. To adapt to the interference intensity that varies with the density of base stations, we propose a dynamic scheduler for the intercell interference coordination. The dynamic scheduler comprises of two separate parts: the distributed part that adjusts the power allocation and asks to restrict color usages in neighboring attocells, and the centralized part that resolves the color conflicts and allocates the color resources in the network. Two solution approaches are proposed for the centralized part, one based on the linear programming relaxation of the integer programming, and the other based on the greedy color allocation. Simulation results show that the dynamic scheduler can improve the cell-edge user's throughput with acceptable penalty to the overall throughput.

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved