Yazar "Kaya, Onur" için MF - Bildiri Koleksiyonu | Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering listeleme
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Achievable rates for the three user cooperative multiple access channel
Edemen, Çağatay; Kaya, Onur (IEEE, 2008)For a three user Gaussian multiple access channel (MAC), we propose a new superposition block Markov encoding based cooperation scheme. Our scheme allows the three users to simultaneously cooperate both in pairs, and ... -
Achievable rates for two user cooperative OFDMA
Bakım, İsmail Sezi; Kaya, Onur (IEEE, 2010)We propose two encoding strategies for a two user cooperative Orthogonal Frequency Division Multiple Access (OFDMA) system, based on block Markov superposition encoding. We obtain the expressions for the resulting achievable ... -
Channel adaptive encoding and decoding strategies and rate regions for the three user cooperative multiple access channel
Edemen, Çağatay; Kaya, Onur (IEEE, 2008)For a cooperative Gaussian multiple access channel (MAC), we propose a new channel adaptive three user cooperation strategy, based on a non-trivial extension of block Markov super-position encoding. We obtain the expressions ... -
Cooperative multiple access under energy harvesting constraints
Su, Nuğman; Kaya, Onur; Ulukuş, Şennur; Koca, Mutlu (Institute of Electrical and Electronics Engineers Inc, 2015)We consider a cooperative multiple access channel (MAC) with two energy harvesting transmitters. The transmitters perform delay constrained transmission, i.e., every information block is encoded, transmitted and decoded ... -
Delay tolerant cooperation in the energy harvesting multiple access channel
Kaya, Onur; Koca, Mutlu; Su, Nuğman; Ulukuş, Şennur (IEEE, 2016)We consider the optimum transmit scheduling problem for a two user energy harvesting cooperative multiple access channel. We assume a slotted model where energy harvests in each slot are known a priori. We propose a delay ... -
Enabling cooperation, resource allocation and receiver selection across cells: complementary fractional frequency reuse
Bakşi, Saygın; Kaya, Onur; Bıyıkoğlu, Türker (IEEE, 2013)For a multi-cell multiple access channel, we develop a comprehensive cooperative communication framework: we propose a novel complementary fractional frequency reuse (FFR) strategy tailored specifically for pairwise user ... -
Energy and data cooperation in energy harvesting multiple access channel
Gürakan, Berk; Şişman, Berrak; Kaya, Onur; Ulukuş, Sennur (IEEE, 2016)We consider the energy harvesting two user Gaussian multiple access channel (MAC), where both users harvest energy from nature. The users cooperate at the physical layer (data cooperation) by establishing common messages ... -
Energy and data cooperation in energy harvesting multiple access channel
Gürakan, Berk; Şişman, Berrak; Kaya, Onur; Ulukuş, Sennur (Institute of Electrical and Electronics Engineers Inc., 2016-08-26)We consider the energy harvesting two user Gaussian multiple access channel (MAC), where both users harvest energy from nature. The users cooperate at the physical layer (data cooperation) by establishing common messages ... -
Energy efficient transmission scheduling for channel-adaptive wireless energy transfer
Kaya, Onur; Bacinoǧlu, Baran Tan; Uysal Bıyıkoğlu, Elif (Institute of Electrical and Electronics Engineers Inc, 2018)We consider a fading communication link where the transmitter is powered by the receiver through wireless energy transfer (WET). A typical application scenario for this is the transmitter being a simple sensor while the ... -
Energy harvesting cooperative multiple access channel with data arrivals
Kaya, Onur; Gürakan, Berk; Ulukuş, Şennur (IEEE, 2016)We consider an energy harvesting two user cooperative Gaussian multiple access channel (MAC), where both of the users harvest energy from nature. The data packets arrive intermittently over time. The users overhear each ... -
Energy harvesting cooperative multiple access channel with decoding costs
Kaya, Onur; Arafa, Ahmed M.; Ulukuş, Şennur (IEEE, 2016)We consider an energy harvesting cooperative multiple access channel (AC) with decoding costs. In this setting, users cooperate at the physical layer (data cooperation) in order to increase the achievable rates. Data ... -
Enerji depolama kayıpları altında enerji hasat eden işbirlikli çoklu erişim
Su, Nuğman; Kaya, Onur; Koca, Mutlu (IEEE, 2017-06-27)Bu bildiride, enerji hasat eden iki vericiyle bir alıcının haberleştiği işbirlikli bir çoklu erişim kanalı için, sonlu batarya sığası ve enerji depolama kayıpları altında ulaşılabilir gönderim bölgesi eniyileme problemini ... -
Improving age of information in random access channels
Atabay, Doğa Can; Uysal, Elif; Kaya, Onur (Institute of Electrical and Electronics Engineers Inc., 2020-07)We study Age of Information (AoI) in a random access channel where a number of devices try to send status updates over a common medium. Assuming a time-slotted scenario where multiple transmissions result in collision, we ... -
Jointly optimal chunk and power allocation in uplink SC-FDMA
Mert, Teoman; Kaya, Onur; Çırpan, Hakan Ali (IEEE, 2013)For a single carrier frequency division multiple access (SC-FDMA) system, we obtain the jointly optimal power and chunk allocation policies which maximize the sum rate. Our solution is applicable to both localized and ... -
A new block Markov coding strategy for pairwise and collective cooperation in the three user MAC
Edemen, Çağatay; Kaya, Onur (IEEE, 2013)For a three user cooperative multiple access channel (MAC), we propose a new block Markov superposition encoding strategy, which enables all three users to cooperate collectively as well as in pairs. We obtain the resulting ... -
Optimal and near-optimal partner selection algorithms in cooperative OFDMA
Bakşi, Saygın; Kaya, Onur; Bıyıkoğlu, Türker (IEEE, 2012)We obtain the jointly optimal power allocation and partner selection policies, that maximize the sum rate of a cooperative OFDMA system with mutually cooperating pairs of users. We show that the power allocation and partner ... -
Optimal primary-secondary user pairing and power allocation in cognitive cooperative multiple access channels
Bakşi, Saygın; Kaya, Onur (IEEE, 2014)We develop jointly optimal power control and primary-secondary user partnering strategies for a cognitive cooperative multiple access channel with K primary and K secondary users. For each primary user, a cooperating ... -
Optimum power control for transmitter cooperation in OFDMA based wireless networks
Bakım, İsmail Sezi; Kaya, Onur (IEEE, 2011)For a cooperative orthogonal frequency division multiple access (OFDMA) system with two transmitters (TXs), and full channel state information (CSI), we obtain the optimal power allocation (PA) policies which maximize the ... -
Power control in the cognitive cooperative multiple access channel
Kaya, Onur; İşleyen, Murat (IEEE, 2012)We extend several encoding and decoding techniques from cooperative communications framework, to a cognitive radio system consisting of a primary user (PU) and a secondary user (SU), sending their messages to a common ... -
When to pull data for minimum age penalty
Yavaşcan, Orhan Tahir; Ceran, Elif Tuğçe; Cakir, Zeynep; Uysal, Elif; Kaya, Onur (IEEE, 2021-10-18)A communication receiver that wants to pull data from a remote sensor by exploiting wireless energy transfer is considered. The receiver has a long-term average energy budget for this operation, and its goal is to keep the ...