Loading...
Send to Friend
 Bookmark
 Review List
  1. Mobility-Aware resource allocation in vlc networks using t-step look-ahead policy
Mobility-Aware resource allocation in vlc networks using t-step look-ahead policy
1452 viewed

Mobility-Aware resource allocation in vlc networks using t-step look-ahead policy

Dastgheib, M. A

Mobility-Aware resource allocation in vlc networks using t-step look-ahead policy

Dastgheib, M. A ; Sharif University of Technology | 2018

1452 Viewed
  1. Type of Document: Article
  2. DOI: 10.1109/JLT.2018.2872869
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2018
  4. Abstract:
  5. Visible light communication (VLC) uses huge license-free spectral bandwidth of visible light for high-speed wireless communication. Since each VLC access point covers a small area, handovers of mobile users are inevitable. In order to deal with these handovers, developing fast and effective resource allocation algorithms is a challenge. This paper introduces the problem of mobility-aware optimization of resources in VLC networks using the T-step look-ahead policy and employing the notion of handover efficiency. It is shown that the handover efficiency can correlate the overall performance of the network with future actions based on the mobility of users. Due to the stationary nature of indoor optical wireless channels, future channel state information (CSI) can be predicted by anticipating the future locations of users. A resource allocation algorithm is thus proposed, which uses CSI to dynamically allocate network resources to users. To solve this mathematically intractable problem, a novel relaxation method is proposed, which proves to be a useful tool to develop efficient algorithms for network optimization problems with a proportional fairness utility function. The resulting algorithm is extremely faster than the previous method and awareness of mobility enhances the overall performance of the network in terms of rate and fairness utility function. © 1983-2012 IEEE
  6. Keywords:
  7. Load balancing ; mobility awareness ; visible light communication (VLC) ; Channel state information ; Light ; Optimization ; Resource allocation ; Handover ; Prediction algorithms ; Relaxation methods ; Resource management ; Visible light communications (VLC) ; Wireless communications ; Visible light communication
  8. Source: Journal of Lightwave Technology ; Volume 36, Issue 23 , 2018 , Pages 5358-5370 ; 07338724 (ISSN)
  9. URL: https://ieeexplore.ieee.org/document/8477068