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Showing result 1 - 5 of 8 essays matching the above criteria.

1. 1. Decode and Forward Relay Assisting Active Jamming in NOMA System

   University essay from Blekinge Tekniska Högskola/Institutionen för datavetenskap

   Author : Lakshmikanth Akurathi; Surya Teja Reddy Chilluguri; [2022]
   Keywords : Physical Layer Security; Power-domain NOMA; Decode and Forward Relay; Jamming in NOMA; Nakagami-m Fading; Relay Transmission; Secrecy Performance.;

   Abstract : Non-orthogonal multiple access (NOMA), with its exceptional spectrum efficiency, was thought to be a promising technology for upcoming wireless communications. Physical layer security has also been investigated to improve the security performance of the system. READ MORE

3. 2. Physical Layer Security With Active Jamming Using NOMA.

   University essay from Blekinge Tekniska Högskola

   Author : Mounika Polisetti; [2021]
   Keywords : Physical Layer security; secrecy capacity; eavesdropper; spectral efficiency; secure NOMA transmission;

   Abstract : This paper is persuaded to understand the physical layer security in wireless commu-nications utilizing NOMA (Non Orthogonal Multiple Access) concepts in the presence of an eavesdropper. Physical layer security maintains the confidentiality and secrecyof the system against eavesdroppers. READ MORE

4. 3. Performance of a Non-Orthogonal Multiple Access System with Full-duplex Relaying over Nakagami-m Fading

   University essay from Blekinge Tekniska Högskola/Fakulteten för datavetenskaper

   Author : Rahul Chowdary Erpina; Viswakanth Reddy Gopireddy; [2021]
   Keywords : NOMA; Full Duplex Relaying; Nakagami-m Fading; Power domain NOMA; Successive Interference Cancellation; Half Duplex Relaying; OFDMA; Code domain-NOMA; Time domain-NOMA.;

   Abstract : In our thesis work, we analyze the performance analysis of a power domain NonOrthogonal Multiple Access (NOMA) system in which the closer user acts as fullduplex relaying to forward the signal to farther user. Because Nakagami-m distribution is a generalized case including the two common fading distributions as specialcases: Rayleigh distribution (m=1), Rician distribution (m>1). READ MORE

5. 4. OTDOA-Based Positioning in Narrowband IoT

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Axel Berg; [2017]
   Keywords : IoT NB-IoT OTDOA Positioning; Technology and Engineering;

   Abstract : This thesis considers the problem of improving the performance of observed time difference of arrival (OTDOA) based positioning for Narrowband Internet of Things (NB-IoT). A new iterative low-complexity algorithm based on expectation maximization successive interference cancellation (EM-SIC) is presented. READ MORE

6. 5. Performance Evaluation of 802.15.4 UWB PHY for High Speed Data Rate under IEEE Channel Mode

   University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

   Author : Athanasios Vasileiadis; [2015]
   Keywords : Technology and Engineering;

   Abstract : In modern day society the increase of data generation and transfer has been an issue that researchers are working on. This generated and shared data might have a different purpose but one thing is certain, the reception. This communication can cover continents, countries, cities or even just a few meters. READ MORE