Interference Cancellation Techniques in Heterogeneous Networks

• Autorzy: Imam S. , El-Mahdy A.

Identyfikatory

DOI

10-1515/fcds-2018-0009

• Języki publikacji: EN

Abstrakty

EN

The fifth generation (5G) cellular wireless networks are heterogeneous networks that will provide higher data rates, enhanced quality-of-experience (QoE) and reduced latency. Interference is one of the main problems in such systems. In this paper, a proposed cross-tier uplink interference alignment algorithm for coexisting two-tier networks is introduced. First at each receiver, the sum of the square of the channel gains from each macro user to this receiver is calculated and the average of these values is taken as a threshold. Macro users whose sum values are greater than this threshold are selected and aligned at the femto receiver. This alignment is performed by using precoders at the transmitters. Then, Zero Forcing technique is applied at the receivers in order to null the aligned interference signals. Numerical results demonstrate the superior performance of the proposed algorithm.

Słowa kluczowe

EN

wireless communication; heterogeneous networks; interference alignment; zero forcing

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Foundations of Computing and Decision Sciences
• Rocznik: 2018
• Tom: Vol. 43, No. 3
• Strony: 153--180
• Opis fizyczny: Bibliogr. 18 poz., rys., tab.

Twórcy

autor

Imam S.

• German University in Cairo, New Cairo City, Main Entrance El Tagmoa El Khames, Cairo, Egypt

autor

El-Mahdy A.

• German University in Cairo, New Cairo City, Main Entrance El Tagmoa El Khames, Cairo, Egypt

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).