Browsing Electrical Engineering by Author "Ozdemir, Ozgur"
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An Autonomous Packet Transmission Strategy for Opportunistic Wireless Sensor Networks
Soy, Hakki; Ozdemir, Ozgur; Bayrak, Mehmet ( Hindawi Publishing Corporation , 2012 , Article)We consider a wireless sensor network that comprises a single hop between the sensor nodes and the central controller node with multiple antennas. In this system model, we concentrate on the single-beam opportunistic ... -
Beamforming OFDM Performance under Joint Phase Noise and I/Q Imbalance
Hamila, Ridha; Ozdemir, Ozgur; Al-Dhahir, Naofal ( IEEE , 2015 , Article)Phase noise (PHN) and in-phase/quadrature (I/Q) imbalance are two major RF impairments in direct-conversion wireless transceivers. Beamforming and orthogonal frequency division multiplexing (OFDM) schemes have been adopted ... -
Exact SINR analysis of OFDM systems under joint Tx/RX I/Q imbalance
Ozdemir, Ozgur; Hamila, Ridha; Al-Dhahir, Naofal ( IEEE , 2013 , Conference Paper)The direct-conversion architecture used for Orthogonal Frequency Division Multiplexing (OFDM) systems suffers from intercarrier interference (ICI) between image subcarriers in each OFDM symbol due to I/Q imbalance between ...