Browse > Article
http://dx.doi.org/10.7840/kics.2013.38A.12.1117

Interference Neutralization for Small-Cell Wireless Networks  

Jeon, Sang-Woon (국립안동대학교 정보통신공학과)
Jung, Bang Chul (국립경상대학교 정보통신공학과)
Abstract
As the recently soaring wireless traffic, small-cell techniques have been actively studied in order to support such a wireless demand for cellular wireless networks. This paper focuses on the inter-cell interference neutralization to resolve the main barrier for implementing small-cell cellular networks. Assuming that each message is delivered to the final destination by the help of base stations or relays, ergodic interference neutralization is proposed, which exploits the time-varying nature of wireless channels. The previous approach based on amplify-and-forward (AF) suffers from severe performance degradation in the low signal-to-noise (SNR) regime due to noise amplification. On the other hand, the proposed interference neutralization based on recently developed compute-and-forward (CF) fixes such a problem and improves the performance in the low SNR regime.
Keywords
Ergodic capacity; inter-cell interference; interference nuetralization; relay; small-cell;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 A. Ghosh, N. Mangalvedhe, R. Ratasuk, B. Mondai, M. Cudak, E. Visotsky, T. A. Thomas, J. G. Andrews, P. Xia, H. S. Jo, H. S. Dhillon, and T. D. Novian, "Heterogeneous cellular networks: From theory to practice," IEEE Commun. Mag., vol. 50, no. 6, pp. 54-64, June 2012.
2 R. H. Etkin, D. N. C. Tse, and H. Wang, "Gaussian interference channel capacity to within one bit," IEEE Trans. Inf. Theory, vol. 54, no. 12, pp. 5534-5562, Dec. 2008.   DOI   ScienceOn
3 V. R. Cadambe and S. A. Jafar, "Interference alignment and degrees of freedom of the K-user interference channel," IEEE Trans. Inf. Theory, vol. 54, no. 8, pp. 3425-3441, Aug. 2008.   DOI   ScienceOn
4 C. Suh, M. Ho, and D. N. C. Tse, "Downlink interference alignment," IEEE Trans. Commun., vol. 59, no. 9, pp. 2616-2626, Sep. 2011.   DOI   ScienceOn
5 C. Suh and D. N. C. Tse, "Interference alignment for cellular networks," in Proc. 46th Annu. Allerton Conf. Commun., Control, Comput., pp. 1037-1044, Urbana-Champaign, U.S.A.,, Sep. 2008.
6 S.-W. Jeon and S.-Y. Chung, "Capacity of a class of linear binary field multisource relay networks," IEEE Trans. Inf. Theory, vol. 59, no. 10, pp. 6405-6420, Oct. 2013.   DOI   ScienceOn
7 T. Gou, S. A. Jafar, C. Wang, S.-W. Jeon, and S.-Y. Chung, "Aligned interference neutralization and the degrees of freedom of the 2x2x2 interference channel," IEEE Trans. Inf. Theory, vol. 58, no. 7, pp. 4381-4395, July 2012.   DOI   ScienceOn
8 S.-W. Jeon, S.-Y. Chung, and S. A. Jafar, "Degrees of freedom region of a class of multisource Gaussian relay networks," IEEE Trans. Inf. Theory, vol. 57, no. 5, pp. 3032-3044, May 2011.   DOI   ScienceOn
9 S.-W. Jeon, C.-Y. Wang, and M. Gastpar, "Approximate ergodic capacity of a class of fading 2-user 2-hop networks," Submitted to IEEE Trans. Inf. Theory, [Online]. Available: http://arxiv.org/abs/1210.2182, Oct. 2012.
10 J. Shin, "Non-robust and robust regularized zero-forcing interference alignment methods for two-cell MIMO interfering broadcast channels," J. Korea Inform. Commun. Soc. (KICS), vol. 38A, no. 7, pp. 560-570, July 2013.   과학기술학회마을   DOI   ScienceOn
11 B. Nazer and M. Gastpar, "Compute-and-forward: Harnessing interference through structured codes," IEEE Trans. Inf. Theory, vol. 57, no. 10, pp. 6463-6486, Oct. 2011.   DOI   ScienceOn
12 B. Nazer and M. Gastpar, "Reliable physical layer network coding," Proc. IEEE, vol. 99, no. 3, pp. 438-460, Mar. 2011.   DOI   ScienceOn
13 U. Nissen and P. Whiting, "The degrees of freedom of compute-and-forward," IEEE Trans. Inf. Theory, vol. 58, no. 8, pp. 5214-5232, Aug. 2012.   DOI   ScienceOn
14 S.-W. Jeon, C.-Y. Wang, and M. Gastpar, "Computation over Gaussian networks with orthogonal components," Submitted to IEEE Trans. Inf. Theory, [Online]. Availalbe:http://arxiv.org/abs/1310.7112, Oct. 2013.
15 C.-Y. Wang, S.-W. Jeon, and M. Gastpar, "Interactive computation of type-threshold functions in collocated broadcast-superposition networks," Submitted to IEEE Inf. Theory, [Online]. Available: http://arxiv.org/abs/1310.2860, Oct. 2013.
16 J. Hoydis, M. Kobayashi, and M. Debbah, "Green small-cell networks," IEEE Veh. Technol. Mag., vol. 6, no. 1, pp. 37-43, Mar. 2011. v   DOI   ScienceOn