Roya Arab Loodaricheh

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In this paper, a joint resource optimization scheme is designed for orthogonal frequency division multiple access (OFDMA) cellular wireless networks with multi-user cooperation. Joint relay selection, subcarrier allocation and pairing and power allocation algorithms are developed with the objective of maximizing the total capacity of the system considering(More)
In this paper, we propose distributed subcarrier pairing and relay selection for OFDM based cooperative systems. Our objective is to maximize the throughput of the network using minimal signaling overhead when uniform power allocation is performed at the subcarriers. Since the optimal centralized solution for the formulated problem requires high signaling(More)
In this paper, we address the problem of joint admission control and power allocation for energy harvesting (EH)-based communication systems. We consider that the harvested energy from the environment is uncertain and insufficient to satisfy the quality-of-service (QoS) requirement of all the communication devices in the system. Joint admission control and(More)