Yazar "Kaya, Onur" için 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 ... -
Achieving the capacity region boundary of fading CDMA channels via generalized iterative waterfilling
Kaya, Onur; Ulukuş, Şennur (IEEE, 2006-11)We characterize the optimum power control policies that achieve arbitrary rate tuples on the boundary of the, capacity region of a power controlled, code division multiple access (CDMA) system in a fading channel with ... -
Age of Information in Practice
Uysal, Elif; Kaya, Onur; Baghaee, Sajjad; Beytur, Hasan Burhan (Cambridge University Press, 2023)While age of Information (AoI) has gained importance as a metric characterizing the freshness of information in information-update systems and time-critical applications, most previous studies on AoI have been theoretical. ... -
Akademisyenlerimiz, Sadık Gültekin'in Doğru Tercih Programına Konuk Oldu!
Gültekin, Sadık; Kahraman, Hasan Bülent; Kaya, Onur; Kaytaz, Mehmet; Işık Üniversitesi (Işık Üniversitesi, 2020-09-23)Rektör Yard. Mimarlık ve Tasarım Fakültesi Dekanı Prof. Dr. Hasan Bülent Kahraman, İktisadi ve İdari Bilimler Fakültesi Dekanı Prof. Dr. Mehmet Kaytaz ve Mühendislik Fakültesi Dekanı Prof. Dr. Onur Kaya, Sadık Gültekin'in ... -
Birleşik çöz/sıkıştır ve ilet tabanlı işbirlikçi çoklu erişim
Kaya, Onur; Güneş, Mehmet (IEEE, 2012-04-18)Bu bildiride, iki kullanıcılı bir işbirlikçi çoklu erişim kanalı için çöz-ilet ve sıkıştır-ilet tekniklerinin eş zamanlı kullanılmasına dayalı kodlama ve kodçözme teknikleri geliştiriyor, ve karşılık gelen erişilebilir ... -
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 ... -
Channel adaptive user cooperation strategies for fading wireless channels
Edemen, Çağatay (Işık Üniversitesi, 2006)In this dissertation, a channel adaptive method is proposed for a two user halfduplex cooperative communication system under the assumption of perfect channel state information at the transmitters and the receiver. An ... -
Cognitive cooperative MAC with one primary and two secondary users: achievable rates and optimal power control
Edemen, Çağatay; Kaya, Onur (IEEE-INST Electrical Electronics Engineers Inc, 2014-11)We consider a three-user fading cognitive cooperative multiple access channel (MAC) with one primary and two secondary transmitters. We propose two encoding/decoding strategies with varying levels of cooperation, based on ... -
Compress and forward based cooperation strategies in wireless networks
Güneş, Mehmet (Işık Üniversitesi, 2011-09-09)Cooperative Communications are emerging as an alternative technology to MIMO Communications. In this thesis, we first summarize information theoretical anal- ysis of known channel types and also consider three fundamental ... -
A cooperative communication approach to cognitive radio
İşleyen, Murat (Işık Üniversitesi, 2011-09-12)Cognitive radio, whose main idea is to have intelligent devices utilize the linı- ited resources, such as frequency spectrum in wireless channels, is becoming a groundbreaking technology. The aim of this thesis is to apply ... -
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 ... -
Cooperative strategies and achievable rates for two user OFDMA channels
Bakım, İsmail Sezi; Kaya, Onur (IEEE-INST Electrical Electronics Engineers Inc, 2011-12)We propose three encoding strategies for a two user cooperative Orthogonal Frequency Division Multiple Access (OFDMA) system, based on block Markov superposition encoding (BMSE). We obtain the expressions for the resulting ... -
Cooperative strategies, achievable rates and resource allocation for OFDMA channels
Bakım, İsmail Sezi (Işık Üniversitesi, 2011-07-28)The design of next generation wireless communication systems brings along new challenges, since the degrading factors such as fading and multi-user interference become harder to deal with as the number of users and the ... -
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 ... -
Design and optimization of multiuser cooperative protocols for wireless networks
Edemen, Çağatay (Işık Üniversitesi, 2014-09-12)Recently, the main trend in wireless communications has shifted from voice transmission to data communication. Naturally, this shift caused an increase in the data rate and bandwidth requirements. Being a limited and thus ... -
Doç. Dr. Onur KAYA FMV Işık Üniversitesi Mühendislik Fakültesi'ni anlatıyor
Gültekin, Sadık; Kaya, Onur; Işık Üniversitesi; Işık Üniversitesi, Mühendislik Fakültesi, Elektrik- Elektronik Mühendisliği Bölümü (NTV, 2017-06-13)Işık Üniversitesi Mühendislik Fakültesi Dekan Yardımcısı, Elektrik- Elektronik Mühendisliği Bölümü Öğretim Üyesi Doç. Dr. Onur Kaya’nın, 12 Haziran 2017 tarihinde NTV kanalında yayınlanan “Doğru Tercih” programında Sadık ... -
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 ...