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  • Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering
  • MF - Bildiri Koleksiyonu | Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering
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  •   DSpace@Işık
  • 1- Fakülteler | Faculties
  • Mühendislik Fakültesi / Faculty of Engineering
  • Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering
  • MF - Bildiri Koleksiyonu | Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering
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Optimal and near-optimal partner selection algorithms in cooperative OFDMA

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Date

2012

Author

Bakşi, Saygın
Kaya, Onur
Bıyıkoğlu, Türker

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Citation

Bakşi, S., Kaya, O. & Bıyıkoğlu, T. (2012). Optimal and near-optimal partner selection algorithms in cooperative OFDMA. Paper presented at the 2012 IEEE Wireless Communications and Networking Conference (WCNC), 475-479. doi:10.1109/WCNC.2012.6214413

Abstract

We obtain the jointly optimal power allocation and partner selection policies, that maximize the sum rate of a cooperative OFDMA system with mutually cooperating pairs of users. We show that the power allocation and partner selection steps can be performed sequentially, and the latter step can be formulated as a maximum weighted matching problem on an undirected graph, which can be solved in polynomial time. We further propose practical algorithms, and compare their performances to the optimal matching algorithm, and demonstrate that very simple and low complexity algorithms based on user-user and user-receiver distances may provide near-optimum rate performance. Moreover, we observe that algorithms that achieve superior sum-rate performance, surprisingly pair the cell edge users, with the strong users near the base station.

Source

2012 IEEE Wireless Communications and Networking Conference (WCNC)

URI

https://hdl.handle.net/11729/612
http://dx.doi.org/10.1109/WCNC.2012.6214413

Collections

  • MF - Bildiri Koleksiyonu | Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering [222]
  • Scopus İndeksli Bildiri Koleksiyonu [452]
  • WoS İndeksli Bildiri Koleksiyonu [353]

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