Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi

PANAYIRCI, Erdal; KURT, GÜNEŞ ZEYNEP KARABULUT; KOCA, Mutlu; HAAS, HARALD

Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi

Yürütücü

ERDAL PANAYIRCI (KADİR HAS ÜNİVERSİTESİ, MÜHENDİSLİK VE DOĞA BİLİMLERİ FAKÜLTESİ, ELEKTRONİK MÜHENDİSLİĞİ BÖLÜMÜ)

Danışman(lar)

HARALD HAAS (KADİR HAS ÜNİVERSİTESİ, MÜHENDİSLİK VE DOĞA BİLİMLERİ FAKÜLTESİ, ELEKTRONİK MÜHENDİSLİĞİ BÖLÜMÜ)

Araştırmacı(lar)

GÜNEŞ ZEYNEP KARABULUT KURT, (KADİR HAS ÜNİVERSİTESİ, MÜHENDİSLİK VE DOĞA BİLİMLERİ FAKÜLTESİ, ELEKTRONİK MÜHENDİSLİĞİ BÖLÜMÜ)

MUTLU KOCA (KADİR HAS ÜNİVERSİTESİ, MÜHENDİSLİK VE DOĞA BİLİMLERİ FAKÜLTESİ, ELEKTRONİK MÜHENDİSLİĞİ BÖLÜMÜ)

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Proje Grubu: EEEAG Sayfa Sayısı: 150 Proje No: 218E034 Proje Bitiş Tarihi: 15.12.2021 Metin Dili: Türkçe İndeks Tarihi: 12-10-2022

Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi

Öz:

Optik Kablosuz Haberlesme ve bunun olası bir uygulaması olan Görünür Isıkla Haberlesme (Visible Light Communications (VLC)), sahip oldugu çok yüksek bant genisligi, bilgi iletim kapasitesi, elektromanyetik girisimlere karsı yüksek bagısıklıgı, uzaysal ortamlarda yüksek oranda güvenli kapsama özelligi ve çalısma frekans spektrumunun belli regülasyonlarla düzenlenmemis olması nedeniyle, genis bir uygulama alanı içinde, çok önemli teknik ve operasyonel üstünlükler saglamakta ve radyo tabanlı kablosuz haberlesme sistemlerine bir seçenek olarak veya onların tamamlayıcı niteliginde karsımıza çıkmaktadır. Son bir kaç yıl içinde, varolan sifreleme tekniklerini güçlendirmek için ve onlara tamamlayıcı bir ek olarak, fiziksel katman güvenligi (physical layer security) diye adlandırılan umut verici yeni bir arastırma ve ilgi alanı ortaya çıkmıstır. Fiziksel katman güvenligi, haberlesme ortamındaki yetkili olmayan kisilerden bilginin saklanması amacıyla, her türlü üst katman sifrelemeden bagımsız olarak, tamamen iletisim kanal ortamının özelliklerini kullanarak, gelistirilen teknik ve yöntemlerdir. Projede, genisbant aglarda VLC fiziksel katman düzeyinde güvenligi saglamak amacıyla, geleneksel yaklasımların ötesinde hızlı ve güvenilir çözümler için, etkin kuramsal çalısmalardan baslayarak laboratuvar düzeyine kadar genis bir spektrumda özgün ve yenilikçi algoritmaların tasarımı önerilmektedir. Bu bakımdan, proje, 1003-BIT-GNBT 2018- 1 Genisbant Haberlesme Agları için Veri Isleme Teknolojileri Çagrı Metnindeki (a) ve (b) amaçları ile büyük bir uyum içinde, arastırma bileseni yüksek, yenilikçi ve özgün bir proje niteligindedir. Projede, geleneksel sistemlere göre getirilen yenilikler ve saglanan üstünlükleri su sekilde sıralanabilir: 1. Projede, fiziksel katman güvenligine sahip VLC sisteminin gerçeklenmesinde, Indis modülasyonu ve bunun bir takım varyasyonları olan uzamsal modülasyon, uzay kaydırmalı anahtarlama ve OFDM-indis modülasyonu gibi yeni modülasyon teknikleri ve çok-girisli-çok çıkıslı LED (light emitting diode) yapıları ile, dikgen olmayan çoklu erisimin birlikte çalısan MIMO-NOMA teknigi önerilmektedir. Elde edilecek yeni ve özgün algoritmalar geleneksel sistemlere göre hesaplama karmasıklıgı düsük, güç randımanı yüksek ve çok kullanıcılı senaryolar için de çalısabilme yetenegine sahip olacaktır. Özellikle, sadece bu modülasyon tekniklerine özgü, yapay karıstırma (artifical jammig) sinyal üretme özelligi, bu tekniklerin fiziksel güvenligin saglanmasında geleneksel yaklasımlara kıyasla en önemli üstünlügünü olusturmaktadır. Ayrıca, gelistirilecek algoritmalara iliskin ?erisilebilecek maksimum gizlilik kapasitesi? ve ?gizlilik oranları?nın analitik yollardan belirlenmesi için izlenecek kuramsal yaklasımlar, sistem mimarilerinin farklı olmasından dolayı, geleneksel sistemlerde izlenen yollardan çok daha farklı olacaktır. 2. LED?lerin ve ısıgın neden oldugu kısıtlar sonucu, radyo frekanslı kabosuz haberlesmedeki geleneksel kanal kestirim tekniklerinin uygulanamaması nedeniyle, Masif MIMO yapıdaki görünür ısık kanalların optimal ve hızlı kestiriminde yeni kanal kestirim algoritmalarının tasarımı önerilmektedir. Ayrıca, kestirim hataları ve kanal bilgilerin vericiye iletilmesindeki gecikmelerin, sistemin bit hata basarımına etkilerininin kuramsal ve bilgisyar benzetimleriyle incelenmesi hedeflenmektedir. 3. Projede son olarak, fizisel katman güvenligine sahip VLC sistemlerin laboratuvar ortamında donanımsal olarak geçeklestirilmesi ve gerçek-zamanda çalısmasının test edilmesi önerilmektedir. Literatürde bir karıstırma sinyali üreterek gizliligi saglayan geleneksel sistemlerle, algoritmanın gerek hesaplama karmasıklıgı ve hızı, gerekse hata basarımı ve erisilebilecek enbüyük gizlilik oranları farklı sinyal-gürültü düzeylerinde karsılastırılarak üstünlügü kanıtlanacaktır.

Anahtar Kelime: Anahtar Kelimeler: VLC PLS OFDM indis modülasyonu MIMO SM çoklu erisim.

Konular: Mühendislik, Elektrik ve Elektronik

Öz:

Optical Wireless Communications and one of its potential applications, Visible Light Comunications (VLC), with attractive features such as high bandwidth capacity, robustness to electromagnetic interference, high degree of spatial confinement, inherent security and unregulated spectrum, offer powerful alternatives and/or complementary technologies to the existing radio frequency (RF) based wireless systems for a wide range of applications. During the past few years, physical-layer security in VLC networks has emerged as a promising approach to complement conventional encryption techniques and provide a first line of defense against eavesdropping attacks. To provide security at VLC physical layer level in broadband networks, in this project, design of original and innovative algorithms is proposed starting from effective theoretical studies to laboratory level for fast and reliable solutions beyond traditional approaches. In this respect, the project proposal is planned to contribute fully to the goals of the call 1003-BIT-GNBT-2018-1 Data Processing Technologies for Broadband Communication Networks as well as in the goals and objectives specified in the call text (a) and (b), and has a potential to increase competitiveness of our country at the international level. In the project, the innovations and advantages as compared to the state-of-art systems can be listed as follows: 1. New and novel algorithms for physical layer security in multiuser and broadband VLC systems applying new modulation schemes such as index modulations (IM) and its variations like spatial modulation (SM), space shift keying (SSK), OFDM-index modulation techniques (OFDM-IM), as well as optical multiple-input-multiple output (MIMO) with non-orthogonal multiple excess (NOMA) system are developed. The algorithms to be design will have low complexity, high power efficiency and have the capability to work with multi-user scenarios. In particular, the artificial jamming signal generation property of these modulation techniques is the most important advantage in providing physical security compared to the traditional approaches. Moreover, the theoretical methods, to develop the maximum achievable secrecy capacity and secrecy rate of the physical layer security algorithms will be much different than the approaches adopted by the by traditional systems because of the different system architectures employed. 2. Due to some physical constraints imposed by the LEDs and light, it is not possible to employ conventional channel estimation techniques in RF communications. Hence, design of new optimal and computationally efficient estimation algorithms for massive MIMO structured optical channels will be proposed. In addition, the effects of channel estimation errors and the delays in the transmission of channel state information to the transmitter on the bit error performance will be investigated theoretically and by computer simulations. 3. Finally, the proposed system will be implemented in a laboratory environment and its BER performnce will be tested and compared with the state-of-art systems, employing conventional jamming signals.

Anahtar Kelime:

Konular: Mühendislik, Elektrik ve Elektronik

Erişim Türü: Erişime Açık

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APA	PANAYIRCI E, HAAS H, KURT G, KOCA M (2021). Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. , 0 - 150.
Chicago	PANAYIRCI Erdal,HAAS HARALD,KURT GÜNEŞ ZEYNEP KARABULUT,KOCA Mutlu Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. (2021): 0 - 150.
MLA	PANAYIRCI Erdal,HAAS HARALD,KURT GÜNEŞ ZEYNEP KARABULUT,KOCA Mutlu Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. , 2021, ss.0 - 150.
AMA	PANAYIRCI E,HAAS H,KURT G,KOCA M Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. . 2021; 0 - 150.
Vancouver	PANAYIRCI E,HAAS H,KURT G,KOCA M Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. . 2021; 0 - 150.
IEEE	PANAYIRCI E,HAAS H,KURT G,KOCA M "Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi." , ss.0 - 150, 2021.
ISNAD	PANAYIRCI, Erdal vd. "Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi". (2021), 0-150.

APA	PANAYIRCI E, HAAS H, KURT G, KOCA M (2021). Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. , 0 - 150.
Chicago	PANAYIRCI Erdal,HAAS HARALD,KURT GÜNEŞ ZEYNEP KARABULUT,KOCA Mutlu Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. (2021): 0 - 150.
MLA	PANAYIRCI Erdal,HAAS HARALD,KURT GÜNEŞ ZEYNEP KARABULUT,KOCA Mutlu Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. , 2021, ss.0 - 150.
AMA	PANAYIRCI E,HAAS H,KURT G,KOCA M Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. . 2021; 0 - 150.
Vancouver	PANAYIRCI E,HAAS H,KURT G,KOCA M Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi. . 2021; 0 - 150.
IEEE	PANAYIRCI E,HAAS H,KURT G,KOCA M "Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi." , ss.0 - 150, 2021.
ISNAD	PANAYIRCI, Erdal vd. "Görünür Isıkla Haberlesmede Fiziksel Katman Güvenligi". (2021), 0-150.