Improving efficiency in resource allocation of OFDMA femtocell networks

Aghababaiyan, K ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.1109/IranianCEE.2013.6599557
  3. Publisher: 2013
  4. Abstract:
  5. Interference control is one of the fundamental challenges in resource allocation of femtocell networks that use orthogonal frequency-division multiple access (OFDMA). In this paper, a method is proposed that reduces the interference between femtocells. This method is implemented by the femtocells in a self organizing manner and increases frequency reuse factor. Thus, the network throughput will increase and the fairness between femtocells remains reasonable we also propose a mechanism that can be applied increase the frequency resources assigned to each femtocell. These new frequencies can be used when femtocells require more frequency resources to carry higher traffic loads. Results of simulations show the improvement of the first method compared to the previous methods. It is also demonstrated that by applying the second mechanism in a high-load condition of the network, a considerable improvement is observed in its throughput. (Between 20-120% improvements)
  6. Keywords:
  7. Orthogonal frequency-division multiple access (OFDMA) ; Femtocell Networks ; Frequency re-use ; Frequency resources ; Frequency reuse factor ; Improving efficiency ; Interference control ; Network throughput ; Electrical engineering ; Femtocell ; Orthogonal frequency division multiplexing ; Resource allocation ; Throughput ; Frequency division multiple access
  8. Source: 2013 21st Iranian Conference on Electrical Engineering ; May , 2013 , Page(s):1 - 5 ; 9781467356343 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6599557