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Energy-Efficient Resource Allocation In Secure OFDMA Communication Systems

Publication Date : 30/11/2015

Author(s) :


Volume/Issue :
Volume 2
Issue 11
(11 - 2015)

Abstract :

Orthogonal frequency division multiple access (OFDMA) is a multiple access technique in which the base stations allow multiple users to transmit simultaneously on different number of subcarriers during the same symbol period. Due to the broadcast nature of the radio propagation, the wireless data transmission can be highly vulnerable to eavesdropping attacks. To this end, physical-layer security mechanism is a promising technique to protect the wireless communications against eavesdropping attacks. A key issue in OFDMA is the allocation of the OFDM subcarriers and power among users sharing the channel. In this paper, the resource allocation mechanism for energy-efficient communication in secure orthogonal frequency-division multiple-access downlink network is proposed. The power, subcarrier allocation policies and secrecy data rate are optimized for maximization of the energy efficiency of secure data communication (bit/joule securely delivered to the users).

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Energy-Efficient Resource Allocation In Secure OFDMA Communication Systems

November 29, 2015