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A Novel Interference Alignment (IA) Method for Improving the Sum-Rate of the Hetnet Users

  • D. PrabakarEmail author
  • V. Saminadan
Conference paper
Part of the Lecture Notes on Data Engineering and Communications Technologies book series (LNDECT, volume 38)

Abstract

Communication between small and macro cells is cooperative to provide seamless access and to evade the issues caused due to open wireless interfaces. The major concern in these kinds of communication is the interference due to common channel exploitation. This article discusses a novel interference alignment (IA) method modeled using multi-objective least-square (MOLS) optimization. In this IA optimization, the received signal is classified using alignment vector boundary using least-square function. This helps to determine data and noise present in the signal. By deploying appropriate alignment vectors, using least-squares, the interference and data signal is classified at the receiver end. The integrated optimization method is efficient in classifying interference by mitigating the slope errors using alignment plots that help to reduce error rate. As the error is mitigated, the degree of freedom of the users is leveraged that improves the sum rate of the network.

Keywords

Interference alignment HetNets Lease-square measure Multi-objective optimization Signal classification 

References

  1. 1.
    Dehghani, M., Arshad, K., MacKenzie, R.: LTE-advanced radio access enhancements: a survey. Wirel. Pers. Commun. 80(3), 891–921 (2015)CrossRefGoogle Scholar
  2. 2.
    Nakamura, T., Nagata, S., Benjebbour, A., Kishiyama, Y., Hai, T., Xiaodong, S., Ning, Y., Nan, L.: Trends in small cell enhancements in LTE advanced. IEEE Commun. Mag. 51(2), 98–105 (2013)CrossRefGoogle Scholar
  3. 3.
    Lopez-Perez, D., Guvenc, I., de la Roche, G., Kountouris, M., Quek, T.Q.S., Zhang, J.: Enhanced intercell interference coordination challenges in heterogeneous networks. IEEE Wirel. Commun. 18(3), 22–30 (2011)CrossRefGoogle Scholar
  4. 4.
    Acharya, J., Gao, L., Gaur, S.: Heterogeneous Networks in LTE Advanced. Wiley, Hoboken (2014)CrossRefGoogle Scholar
  5. 5.
    Jafar, S.A.: Interference Alignment—A New Look at Signal Dimensions in a Communication Network. Now Publishers Inc., Breda (2011)Google Scholar
  6. 6.
    Yang, L., Zhang, W.: Interference Coordination for 5G Cellular Network. Series SpringerBriefs in Electrical and Computer Engineering. Springer, New York (2015)CrossRefGoogle Scholar
  7. 7.
    Cadambe, V.R., Jafar, S.A.: Interference alignment and degrees of freedom of the-user interference channel. IEEE Trans. Inf. Theory 54(8), 3425–3441 (2008)MathSciNetCrossRefGoogle Scholar
  8. 8.
    El Ayach, O., Peters, S.W., Heath, R.W.: The practical challenges of interference alignment. IEEE Wirel. Commun. 20(1), 35–42 (2013)CrossRefGoogle Scholar
  9. 9.
    Mungara, R.K., George, G., Lozano, A.: Overhead and spectral efficiency of pilot-assisted interference alignment in time-selective fading channels. IEEE Trans. Wirel. Commun. 13(9), 4884–4895 (2014)CrossRefGoogle Scholar
  10. 10.
    Tresch, R., Guillaud, M.: Clustered interference alignment in large cellular networks. In: 2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 1024–1028 (2009)Google Scholar
  11. 11.
    Chen, S., Cheng, R.S.: Clustering for interference alignment in multiuser interference network. IEEE Trans. Veh. Technol. 63(6), 2613–2624 (2014)CrossRefGoogle Scholar
  12. 12.
    Zhang, Y., Zhou, Z., Li, B., Gu, C., Shu, R.: Partial interference alignment for downlink multi-cell multi-input-multi-output networks. IET Commun. 9(6), 836–843 (2015)CrossRefGoogle Scholar
  13. 13.
    Kavasoglu, F.C., Huang, Y., Rao, B.D.: Semi-blind interference alignment techniques for small cell networks. IEEE Trans. Sig. Process. 62(23), 6335–6348 (2014)MathSciNetCrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.Department of Electronics and Communication EngineeringPondicherry Engineering CollegePuducherryIndia

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