Abstract
In this paper, we propose an enhanced signal-to-generating interference ratio (SGIR)-based resource scheduling scheme to reduce the feedback overhead in backhaul links for frequency division duplex (FDD) uplink networks. In the proposed scheme, each base station (BS) transfers only the information of dominant interference channels greater than a given threshold instead of the whole interference channels. We analyze the performance of the proposed scheme in terms of the amount of feedback reduction in the backhaul links and average uplink sum-rate. In addition, we derive a closed-form solution to determine an adequate threshold level. The numerical results show that the proposed scheme can significantly reduce the amount of feedback traffic in the backhaul links, while yielding almost the same average uplink sum-rate.
| Original language | English |
|---|---|
| Pages (from-to) | 38-51 |
| Number of pages | 14 |
| Journal | Computers and Electrical Engineering |
| Volume | 67 |
| DOIs | |
| Publication status | Published - 2018 Apr |
Bibliographical note
Funding Information:This work was supported by the Gyeongsang National University Fund for Professors on Sabbatical Leave, 2017 and Institute for Information & communications Technology Promotion(IITP) grant funded by the Korea government(MSIT) (No.2015-0-00820, A research on a novel communication system using storage as wireless communication resource).
Publisher Copyright:
© 2018 Elsevier Ltd
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Computer Science(all)
- Electrical and Electronic Engineering