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- Dogan Yildiz, Serap Karagol, Okan Ozgonenel, Satish Tadiparthi, Marwan Bikdash
- 2015 Sensor Signal Processing for Defence (SSPD)
- 2015

This paper presents a modification of 3N Time of Arrival (TOA) and a reliable Time Difference of Arrival (TDOA) based localization algorithms. TDOA is formulated using the parametric equations of the hyperbolas whose intersections are candidate locations for the nodes to be localized. The TDOA algorithm is guaranteed to find all possible relevant solutions,â€¦ (More)

- Shafiullah Malekzai, Dogan Yildiz, Serap Karagol
- 2016 24th Signal Processing and Communicationâ€¦
- 2016

Cloud computing was introduced as a new technology when local resources could not any more fullfil access requirements along with the increase of network bandwidth and variety of services breaks constraints of physical placement and deliver diversities of services in its virtualized hardware and software type. GreenCloud simulator as an extension of theâ€¦ (More)

- Dogan Yildiz, Serap Karagol, Okan Ozgonenel, Satish Tadiparthi, Marwan Bikdash
- 2016 IEEE 30th International Conference onâ€¦
- 2016

Wireless sensor networks are popular technologies that have extensive application areas. Localization is a crucial topic in wireless sensor networks. In wireless ad hoc and sensor networks, supporting nodes without Global Positioning System (GPS) capability have many applications in routing and surveying systems in use today. Time of Arrival (TOA) is aâ€¦ (More)

- Dogan Yildiz, Serap Karagol, Okan Ozgonenel
- 2017 5th International Istanbul Smart Grid andâ€¦
- 2017

Intersection of hyperbolic curves defined by the Time Difference of Arrival (TDOA) is often used in Wireless Sensor Networks (WSNs) to estimate the location of sensors. This paper proposes a new algorithm of this type. The hyperbolic parametric equation and the rotation matrix are used to estimate the location of the target node and rotation, translationâ€¦ (More)

- Dogan Yildiz, Serap Karagol
- 2017 International Artificial Intelligence andâ€¦
- 2017

Mobile communication has become an important part of our daily lives for voice communication and data sharing and access over the Internet. Mobile communication is an open network, so maintaining the privacy and reliability of data has always been anxiety. The reliability of the data against channel noise can be achieved by various error correction codes.â€¦ (More)

- Dogan Yildiz, Serap Karagol, Okan Ozgonenel, Satish Tadiparthi, Marwan Bikdash
- 2016 39th International Conference onâ€¦
- 2016

This paper introduces a novel graph-theoretic self localization algorithm that resolves ambiguities in the position candidates. The algorithm is especially effective in very sparse networks where other algorithms usually fail. Even when the algorithm cannot locate a given node, it produces a polygonal estimate of the region in which the node is located.â€¦ (More)

- Dogan Yildiz, Serap Karagol, Okan Ozgonenel
- 2015 9th International Conference on Electricalâ€¦
- 2015

Differential Equation Algorithm (DEA), which is used as an alternative method to Fourier and similar algorithms, is among the online parameter estimation algorithms used in transmission line protection. Pi or T equivalent circuit parameters (R, L and C) of the transmission line can be calculated efficiently by using the fundamental harmonic components ofâ€¦ (More)

- Dogan Yildiz, Serap Karagol, Okan Ozgonenel
- 2015 23nd Signal Processing and Communicationsâ€¦
- 2015

Differential equation algorithm (DEA), which is used as an alternative method to Fourier and similar algorithms, is among the online parameter estimation algorithms used in transmission line protection. Pi or T equivalent circuit parameters (R, L and C) of the transmission line can be calculated efficiently by using the fundamental harmonic components ofâ€¦ (More)

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