Browsing Faculty of Engineering by Author "Heidarpour, M. R."
Now showing items 1-7 of 7
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Cooperative BICM-OFDM systems for frequency-selective relay channels
Heidarpour, M. R.; Uysal, Murat (IEEE, 2011)In this paper, we consider a cooperative multi-carrier multi-relay system over frequency-selective fading channels. Specifically, we adopt the orthogonal frequency division multiplexing (OFDM) with bit-interleaved ... -
Cooperative communication techniques for future-generation HF radios
Uysal, Murat; Heidarpour, M. R. (IEEE, 2012-10)When Hurricane Katrina hit the Gulf Coast of the United States in 2005, it severely damaged the telecommunications infrastructure, isolating the area from the outside world. With all the high-end emergency communication ... -
Design and analysis of broadband amplify-and-forward cooperative systems: A fractionally-spaced sampling approach
Heidarpour, M. R.; Uysal, Murat; Damen, M. O. (IEEE, 2016-10-01)In this paper, we propose novel fractionally-spaced frequency-domain equalizers for the amplify-and-forward cooperative systems. In the proposed equalization schemes, the sampling rate of the received signal remains at ... -
Fractionally spaced equalization for broadband amplify-and-forward cooperative systems
Heidarpour, M. R.; Uysal, Murat; Damen, M. O. (IEEE, 2013)In this paper, we revisit the concept of fractionally spaced equalization (FSE) for broadband single-carrier amplify-and-forward (AaF) cooperative systems. Particularly, we investigate fractionally spaced frequency domain ... -
Joint lifetime-outage optimization in relay-enabled IoT networks—A deep reinforcement learning approach
Heidarpour, A. R.; Heidarpour, M. R.; Ardakani, M.; Tellambura, C.; Uysal, Murat (IEEE, 2023-01)Network lifetime maximization in Internet of things (IoT) is of paramount importance to ensure uninterrupted data transmission and reduce the frequency of battery replacement. This letter deals with the joint lifetime-outage ... -
Multicarrier HF communications with amplify-and-forward relaying
Heidarpour, M. R.; Uysal, Murat (IEEE, 2011)High-frequency (HF) radio communication has been recognized as the primary means for long-range wireless communications since the advent of radio. With its unique features, HF communication continues to be used for a wide ... -
Soft actor-critic-based computation offloading in multiuser MEC-enabled IoT-A lifetime maximization perspective
Heidarpour, A. R.; Heidarpour, M. R.; Ardakani, M.; Tellambura, C.; Uysal, Murat (IEEE, 2023-10-15)This article studies the network lifetime optimization problem in a multiuser mobile-edge computing (MEC)-enabled Internet of Things (IoT) system comprising an access point (AP), a MEC server, and a set of K mobile devices ...
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