تصفح حسب الموضوع "Signal to noise ratio"
السجلات المعروضة 21 -- 40 من 64
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Estimating the number of sources: An efficient maximization approach
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Estimating the number of sources received by an antenna array have been well known and investigated since the starting of array signal processing. Accurate estimation of such parameter is critical in many applications that ... -
Exact capture probability analysis of GSC receivers over Rayleigh fading channel
( IEEE , 2010 , Conference Paper)For third generation systems and ultrawideband systems, RAKE receivers have been introduced due to the advantage of RAKE receivers which is their ability to combine different replicas of the transmitted signal arriving at ... -
Exact closed form expressions for outage probability of GSC receivers over Rayleigh fading channel subject to self-interference
( IEEE , 2010 , Conference Paper)Previous work on performance analyses of generalized selection combining (GSC) RAKE receivers based on the signal to noise ratio focused on the development of methodologies to derive exact closed-form expressions for various ... -
FPGA Implementation of Orthogonal Matching Pursuit for Compressive Sensing Reconstruction
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)In this paper, we present a novel architecture based on field-programmable gate arrays (FPGAs) for the reconstruction of compressively sensed signal using the orthogonal matching pursuit (OMP) algorithm. We have analyzed ... -
Improved relay selection for decode-and-forward cooperative wireless networks under secrecy rate maximization
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)Privacy and security have an increasingly important role in wireless networks. A secure communication enables a legitimate destination to successfully retrieve information sent by a source, while it disables the eavesdropper ... -
Influence of the shape and mass of a small robot when thrown to a dummy human head
( springer link , 2019 , Article)Social robots have shown some efficacy in assisting children with autism and are now being considered as assistive tools for therapy. The physical proximity of a small companion social robot could become a source of harm ... -
Inter-relay interference cancellation for wireless multi-user multi-decode-and-forward relay networks
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)In this paper, a cooperative communication scheme with inter-relay interference (IRI) cancellation is proposed for wireless multi-user multi-decode-and-forward (DF) relay networks. The scheme is based on a DF half-duplex ... -
Inter-relay interference management schemes for wireless multi-user decode-and-forward relay networks
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)In this paper, two cooperative communications schemes with inter-relay interference (IRI) management are proposed for wireless multi-user decode-and-forward (DF) relay networks. The schemes are based on a DF half-duplex ... -
Interference management schemes for multi-user cooperative wireless networks
( John Wiley and Sons Ltd , 2016 , Article)Cooperative communication is a promising technique for future wireless networks. It can be used in improving communication reliability and enhancing spectrum efficiency by using the broadcast nature of radio communication ... -
Interference management schemes with general order statistics and interference constraint for multi-user cooperative wireless networks
( Institute of Electrical and Electronics Engineers Inc. , 2013 , Conference Paper)In this paper, two cooperative communications schemes with interference management are proposed for multiuser wireless networks. The first scheme (Interference Constraint based Relay Selection (ICRS)) maximizes the received ... -
Joint hierarchical modulation and network coding for two way relay networks
( IEEE , 2012 , Conference Paper)The performance of a joint Hierarchical Modulation (HM) and Network Coding (NC) scheme for two way relay networks is introduced and evaluated in this paper. The proposed scheme uses selective relaying based on a signal-to-noise ... -
Joint statistics of partial sums of ordered exponential variates and performance of GSC RAKE receivers over rayleigh fading channel
( IEEE , 2011 , Article)Spread spectrum receivers with generalized selection combining (GSC) RAKE reception were proposed and have been studied as alternatives to the classical two fundamental schemes: maximal ratio combining and selection combining ... -
Lifetime maximization with predictive power management in selective relay networks
( Institute of Electrical and Electronics Engineers Inc. , 2009 , Conference Paper)A diversity scheme which exploits the existence of a source-destination path to improve the lifetime and outage probability of a wireless selective relay network with Amplifyand-Forward (AF) relays is proposed and studied. ... -
Modeling and analysis of HetNet interference using Poisson Cluster Processes
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)Future mobile networks are converging towards being heterogeneous, owing to the co-existence of multi-tier networks within the same geographical area, including macro, pico- and femto-cells. The deployment of such networks ... -
Multihop transmission strategy using dijkstra algorithm to improve energy efficiency in WSNs
( Springer Verlag , 2018 , Conference Paper)Thanks to the development in the wireless communication technologies and the microelectronics domain, Wireless Sensor Networks (WSNs) are more and more omnipresent. The most important challenge of WSN is how to extend its ... -
Non-data-aided SNR estimation for QPSK modulation in AWGN channel
( IEEE Computer Society , 2014 , Conference Paper)Signal-to-noise ratio (SNR) estimation is an important parameter that is required in any receiver or communication systems. It can be computed either by a pilot signal data-aided approach in which the transmitted signal ... -
Novel selective OFDM-based cooperative techniques for multi-hop systems
( Elsevier B.V. , 2015 , Article)In multi-hop systems, the theoretical outage probabilities and diversity orders of novel Orthogonal Frequency Division Multiplexing (OFDM) based Decode and Forward (DF) cooperative techniques are derived for different ... -
On physical layer security of correlated multiantenna cognitive radio receivers
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)In limited space scenarios, the antennas in the multiantenna cognitive radio (CR) system are closely spaced and often experience correlation among them. In this work, the secrecy performance of correlated multiantenna CR ... -
On the delay of finite buffered multi-hop relay wireless internet of things
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)The evolution of Internet of Things (IoT) as a new application in wireless networks mandates the utilization of wireless cooperative relaying to overcome the energy limitations of IoT devices. Multi-hop relaying is a ... -
On the Performance of RIS-Assisted Dual-Hop UAV Communication Systems
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)In this paper, to further improve the coverage and performance of unmanned aerial vehicle (UAV) communication systems, we propose a reconfigurable intelligent surface (RIS)-assisted UAV scheme where an RIS installed on a ...