Results 31 to 40 of about 378,239 (243)
Low Complexity Equalization of Orthogonal Chirp Division Multiplexing in Doubly-Selective Channels
Sensors, 2020 Orthogonal Chirp Division Multiplexing (OCDM) is a modulation scheme which outperforms the conventional Orthogonal Frequency Division Multiplexing (OFDM) under frequency selective channels by using chirp subcarriers.
Xin Wang, Zhe Jiang, Xiao-Hong Shen
doaj +1 more source
Secure Resource Allocation for Cooperative OFDMA System With Untrusted AF Relaying
IEEE Access, 2021 In this paper, we consider a cooperative orthogonal frequency division multiple access (OFDMA) system, where a source communicates with multiple users with the help of an untrusted relay.
Yifeng Jin +4 more
doaj +1 more source
International Journal on Advanced Science, Engineering and Information Technology, 2017 Two Crossover-first Differential Evolution (XDE) algorithms as well as four self-adaptive DE algorithms are compared in this study in terms of their optimization accuracy for solving a set of 15 complex, non-linear numerical optimization functions across 4 different dimensions of 10, 30, 50 and 100 optimization variables.
openaire +1 more source
Including Limited Partners in the Diversity Jurisdiction Analysis [PDF]
, 1986 This paper presents the results of the Dynamic Pricing Challenge, held on the occasion of the 17th INFORMS Revenue Management and Pricing Section Conference on June 29–30, 2017 in Amsterdam, The Netherlands.
Bayliss, C. +12 more
core +6 more sources
SURVEY ON CLUSTERING ALGORITHM AND SIMILARITY MEASURE FOR CATEGORICAL DATA [PDF]
ICTACT Journal on Soft Computing, 2014 Learning is the process of generating useful information from a huge volume of data. Learning can be either supervised learning (e.g. classification) or unsupervised learning (e.g.
S. Anitha Elavarasi, J. Akilandeswari
doaj
On distributed scheduling in wireless networks exploiting broadcast and network coding [PDF]
, 2010 In this paper, we consider cross-layer optimization in wireless networks with wireless broadcast advantage, focusing on the problem of distributed scheduling of broadcast links. The wireless broadcast advantage is most useful in multicast scenarios.
Chen, Lijun, Cui, Tao, Ho, Tracey
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Optimized Compressed Sensing Matrix Design for Noisy Communication Channels [PDF]
, 2014 We investigate a power-constrained sensing matrix design problem for a compressed sensing framework. We adopt a mean square error (MSE) performance criterion for sparse source reconstruction in a system where the source-to-sensor channel and the sensor ...
Dey, Subhrakanti, Shirazinia, Amirpasha
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IEEE Access, 2021 We propose generalized partially information coupled (PIC) polar codes and their construction method. In the proposed codes, each code block (CB) shares systematic information bits partially with J adjacent CBs on each side, where J is referred to as the
Hyoungbae Ahn +2 more
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Low complexity subcarrier and power allocation algorithm for uplink OFDMA systems [PDF]
, 2013 In this article, we consider the joint subcarrier and power allocation problem for uplink orthogonal frequency division multiple access system with the objective of weighted sum-rate maximization.
Al-Imari, Mohammed +3 more
core +2 more sources
IEEE Access, 2020 Employing heavy conventional encryption algorithms in communications suffers from added overhead and processing time delay; and in wireless communications, in particular, suffers from severe performance deterioration (avalanche effect) due to fading ...
Yazid M. Khattabi +2 more
doaj +1 more source