Interference Neutralization for Small-Cell Wireless Networks

- Journal title : The Journal of Korean Institute of Communications and Information Sciences
- Volume 38A, Issue 12, 2013, pp.1117-1124
- Publisher : The Korean Institute of Communications and Information Sciences
- DOI : 10.7840/kics.2013.38A.12.1117

Title & Authors

Interference Neutralization for Small-Cell Wireless Networks

Jeon, Sang-Woon; Jung, Bang Chul;

Jeon, Sang-Woon; Jung, Bang Chul;

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;

Language

Korean

Cited by

References

1.

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

2.

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.

3.

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.

4.

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.

5.

C. Suh, M. Ho, and D. N. C. Tse, "Downlink interference alignment," IEEE Trans. Commun., vol. 59, no. 9, pp. 2616-2626, Sep. 2011.

6.

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.

7.

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.

8.

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.

9.

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.

10.

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.

11.

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.

12.

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.

13.

B. Nazer and M. Gastpar, "Reliable physical layer network coding," Proc. IEEE, vol. 99, no. 3, pp. 438-460, Mar. 2011.

14.

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.

15.

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.

16.

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.