Advanced SearchSearch Tips
Dynamic Inter-Cell Interference Avoidance in Self-Organizing Femtocell Networks
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Dynamic Inter-Cell Interference Avoidance in Self-Organizing Femtocell Networks
Park, Sang-Kyu; Bahk, Sae-Woong;
  PDF(new window)
Femtocells are expected as the surest way to increase the system capacity with higher-quality links and more spatial reuse in future networks. In spite of their great potential, the system capacity is highly susceptible to network density because a large portion of users are exposed to inter-cell interference (ICI). In this work, we proposed a dynamic interference avoidance scheme in densely deployed cell environments. Our proposed DDIA (Distributed Dynamic ICI Avoidance) scheme not only works in a fully distributed manner, but also controls interference link connectivity of users with high agility so that it is suited for self-organizing networks (SONs). We introduced the concept of ICI-link and two-tier scheduling in designing the DDIA scheme. To avoid ICI without any central entity, our scheme tries to harmonize all base stations (BSs) with users adaptively. Through extensive simulations, it was shown that our proposed scheme improves the throughput of users by more than twice on average compared to the frequency reuse factor 1 scheme, who are exposed to ICI while maintaining or even improving overall network performance. Our scheme operates well regardless of network density and topology.
femtocell;inter-cell interference;interference avoidance;self-organizing;
 Cited by
FFR 기반의 Femtocell 네트워크를 위한 적응 주파수 자원 할당 방법,배원건;김정곤;

한국통신학회논문지, 2012. vol.37. 7B, pp.505-516 crossref(new window)
Vikram Chandrasekhar and Jeffrey G. Andrews, "Femtocell Networks: A Survey," IEEE Communications Magazine, Vol.46, No. 9, pp.59-67, Sep. 2008. crossref(new window)

David Lopez-Perez, Alvaro Valcarce, Guillaume de la Roche, Jie Zhang, "OFDMA Femtocells: A Roadmap on Interference Avoidance," IEEE Communications Magazine, Vol.47, No.9, pp.41-48, Sep. 2009.

3GPP TR 36.942 v10.1.0 "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Frequency (RF) system scenarios," Sep. 2010.

3GPP TR 36.814 v9.0.0 "Evolved Universal Terrestrial Radio Access (E-UTRA); Further advancements for E-UTRA physical layer aspects," Mar.2010.

3GPP TR 25.820 v8.2.0, "3G Home NodeB (HNB) study item Technical Report," Sep. 2008.

3GPP TS 36.331 v9.4.0, "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification," Sep. 2010.

M. Rahman and H. Yanikomeroglu, "Enhancing Cell-Edge Performance: A Downlink Dynamic Interference Avoidance Scheme with Inter-Cell Coordination," Wireless Communications, IEEE Transactions on, Vol.9, No.4, pp.1414-1425, 2010. crossref(new window)

Alexander L. Stolyar and Harish Viswanathan, "Self-organizing Dynamic Fractional Frequency Reuse for Best-Effort Traffic Through Distributed Inter-cell Coordination," in Proceedings of IEEE INFOCOM, pp.1287-1295, Apr. 2009.

J. Yoon, "Contention based distributed access control for wireless networks," PhD dissertation, Seoul National University, Aug. 2008.

K. Sundaresan and S. Rangarajan, "Efficient Resource Management in OFDMA Femto Cells," in Proceedings of ACM MobiHoc, pp.33-42, May. 2009.

3GPP TS 36.211 v9.1.0, "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation," Mar. 2010.