Anti-frequency-shift packet detection for D2D power-saving communications over Wi-Fi network by Fan YANG, Xi LIANG, Ke-yu LONG, Li JIANG

“…An efficient packet detection scheme based on Wi-Fi interface was proposed.It was implemented by employing a novel normalized factor as a denominator in OFDM symbol synchronization-timing metric.Compared to the old-tradition schemes,the proposed scheme can not only obtain great detection probability,but also achieve the threshold setting without pre-estimation of frequency offset.Both theoretical analysis and conducted simulation results show that the new scheme facilitates threshold selection for a wide range of signal-to-noise ratio (SNR) in additive white Gaussian noise (AWGN) channel.Besides,the threshold setting in multi-path Rayleigh fading channels can be determined according to the AWGN case straight forwardly.…”
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Properties and Applications of a New Extended Gamma Function Involving Confluent Hypergeometric Function by Abdus Saboor, Gauhar Rahman, Hazrat Ali, Kottakkaran Sooppy Nisar, Thabet Abdeljawad

“…In this paper, a new confluent hypergeometric gamma function and an associated confluent hypergeometric Pochhammer symbol are introduced. We discuss some properties, for instance, their different integral representations, derivative formulas, and generating function relations. …”
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Joint linear transceiver design over MIMO frequency selective channels by HAN Sheng-qian, YANG Chen-yang

“…To avoid the iterative computation between the transmitter and receiver involved in the joint MMSE Tx-Rx design, a low-complexity transceiver given a MMSE receiver called successive searching zero-forcing （ZF-SS） algorithm was proposed, which exploits spatial resources to mitigate or eliminate the inter-symbol-interference caused by multi-path channels. …”
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Fast recursive algorithm for implementation of MIMO ZF-SIC detection by Zuo-liang YIN, Xing-peng MAO, Qin-yu ZHANG, Nai-tong ZHANG

“…To reduce the complexity of the zero-forcing(ZF)detection with successive interference cancellation(SIC)in a Vertical Bell Labs layered space-time(V-BLAST)systems,a computationally efficient recursive algorithm was proposed.A fast implementation of the proposed algorithm was developed and its complexity was analyzed in detail.Theoretical analysis and simulations demonstrate significant advantages of the proposed algorithm over the fast recursive algorithm (FRA)on complexity,practicability and storage requirements.Moreover,its performance on symbol error rate(SER)is close to optimal under practical conditions.These advantages make the proposed algorithm more efficient and practical.…”
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Смысл символики имени „Макар” в контексте творчества Ф.М. Достоевского и проблем эсхатологии как скрытый концепт жизни и культурной креативности человека... by Olga Krężołek

“…The paper deals with the meanings of the name Makar according to Florinsky's metaphysical conception which, with reference to the symbolic representation of simplicity in the oeuvre of Dostoyevsky and its problems of eschatology, make it possible to reveal the universal and cosmological message hidden in the symbolic content of the name. …”
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Contemporary Yoruba Heroes in Public Sculpture by Tolulope O. Sobowale, Kehinde Adepegba, Johnson O. Oladesu

“…Examples of this is Ako figures among the Ọ̀wọ̀ people, bronze figures representing past Ooni and Sango symbol which is represented in a carved double axe wand. …”
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Note on the quadratic Gauss sums by George Danas

“…,p−1 be a finite arithmetic sequence with elements the values of a Dirichlet character χ  modp which are defined in terms of the Legendre symbol (m/p), (m,p)=1. We study the relation between the Gauss and the quadratic Gauss sums. …”
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Efficient signcryption scheme based on Cocks’ identity cryptosystem by Changgen PENG, Xiaoyu ZHANG, Hongfa DING, Shanhui YANG

“…Most of the existing identity-based signcryption schemes are based on bilinear or multilinear pairing operations construction.To solve the problem of low efficiency caused by complex pair operation, a new efficient signcryption scheme based on the identity cryptosystem of Cocks was proposed.Firstly, the security model of the proposed scheme was formalized, and the definition of confidentiality and unforgeability was given.Secondly, the quadratic residue problem was used to realize the concrete construction of the proposed scheme, and the signature algorithm was designed in a logical step by combining Jacobi symbol operation.Finally, the security proofed that the scheme satisfied the confidentiality and unforgeability was given under the random prediction model.The efficiency analysis shows that compared with the existing identity-based signcryption scheme, the proposed scheme greatly improves the computing efficiency and has good characteristics of identity-based cryptosystem.…”
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Die geheim van die prediking: om mondig te word by J. Cilliers

“… This article contends that preaching is a speech-act in which the voice of the preacher – symbol of his or her personality and spirituality - has an important role to play. …”
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Time hopping short reference carrier index differential chaos shift keying communication scheme by Hua YANG, Yu WANG, Siyuan XU, Guoping JIANG

“…In order to effectively utilize the transmission power of the reference signals in carrier index differential chaos shift keying (CI-DCSK), a novel time hopping short reference carrier index differential chaos shift keying communication system was proposed.Firstly, the symbol time was divided into multiple time slots, one of which was selected to send short reference signals according to the reference index bits.Then, analytical bit error rate expressions over additive white Gaussian noise and multipath Rayleigh fading channels were derived.Simulation results verify that the proposed scheme has a significant improvement in spectral efficiency, system energy efficiency and bit error rate performance.…”
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Error exponent for TAS/MRC fading channel by Changshui LI

“…Using Meijer-G function,exact expression for the random coding error exponent,ergodic capacity,cutoff rate,expurgated exponent of TAS/MRC Nakagami-m fading channel were derived.Numerical results show that the random coding error exponent is related to channel fading coefficient,coding rate,the number of transmitting and receiving antennas,and signal symbol period.With the coding rate,the number of the receiving and transmitting antennas and the average signal to noise ratio increasing,the RCEE of the system will become larger and the BER performance of the system will be better.For a given decoding error probability of a wireless communication system,necessary coding length,number of antennas,channel coherence time,and spatial fading correlation could be estimated by computing the random coding error exponent.…”
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Accompagner les pratiques masturbatoires des adolescent.e.s dans des institutions pour personnes dites autistes : gestion du collectif, crainte de l’intime by Adrien Primerano

“…While sexuality is officially prohibited within these institutions, masturbation is legitimized in the name of exploring the body and as a symbol of adolescence. However, the way of addressing masturbation varies according to gender: for boys, there’s more openness and discussion. …”
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"Under Ben Bulben" : la montagne chez W.B. Yeats ou la rencontre du moi et du Soi by Michel Dufour

“…Though it is not generally considered one of Yeats’s main symbols, the mountain occurs frequently in his poetry, particularly in the last poems. …”
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Lizori: Segni e Dialoghi by Michela Meschini, Chiara Mommi

“…The burg of Lizori, with cobbled streets, stone houses, and perimeter walls that preserve its ancient defensive character, becomes a symbol of a heritage that is capable of speaking to both the present and the future with a vibrant, layered cultural identity. …”
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Performance analysis of antenna correlation on land mobile satellite based MIMO systems by Yuan LIN, Yuan-zhi HE, Jing-chao WANG, Han HAN

“…The joint effect of spatial correlation and shadowing of channels on the performance of land mobile satellite MIMO system was analyzed.With the help of contour integral,residue theorem and integral of special functions,closed-form approximations of the outage probability (OP) and the average symbol error rate (SER)were derived.The Monte Carlo simulations results were illustrated through several examples in order to assess the impact of correlation coefficient,the number of antenna and different modulation mode on the performance.It shows that although channel correlation and shadowing degrade system gain,significant performance gains can be obtained by multi-satellite MIMO systems compared to relevant single-input single-output (SISO) ones.…”
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Early Marriages and Pupil's Academic Performance in Butanda Sub- County Kabale District. by Katushabe, Sharlote

“…Early marriage is a symbol of poor orientation. Throughout the world. marriage is regarded as a moment of celebration and a milestone in one's life. …”
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Space alternating generalized maximum-likelihood based low-complexity list detection algorithm by Chang-le JING, Xin WANG, Ji-bo WEI, Bin CHEN, Shi-qi WU

“…The proposed al-gorithm could utilize adjacent symbols to realize joint-sliding detection to achieve higher diversity gain, wh le the tradi-tional SIC algorithm was only able to detect a single symbol each time. …”
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Au fil de nos souvenirs : le 17 octobre 1961, emblème des violences policières by Clotilde Lebas

“…From an evocation to another, from an entrepreneur de mémoire to another, the memory of October 17th, 1961, supported by photographs left by Kagan, becomes the symbol of police violence. This example illustrates the complexity of memory dynamics by revealing how an event can come back, by the detour of photography, as a fact or a trace, and be reinvested in a present time where it still makes sense.…”
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Looking into the attribute of transcendent genius: George Henry Boker and Robert Conrad’s use of Shakespeare by Ronan Ludot-Vlasak

“…While Conrad aimed at providing a melodramatic counter-model to 2 Henry VI in Jack Cade, he failed to grasp Shakespeare’s ambivalent stance and to challenge his figure as a symbol of literary genius. Boker’s less radical and more reverential approach in Anne Boleyn and Francesca da Rimini prevented him from being more than an epigone. …”
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Algebraic Properties of Quasihomogeneous and Separately Quasihomogeneous Toeplitz Operators on the Pluriharmonic Bergman Space by Hongyan Guan, Liu Liu, Yufeng Lu

“…We study some algebraic properties of Toeplitz operator with quasihomogeneous or separately quasihomogeneous symbol on the pluriharmonic Bergman space of the unit ball in ℂn. …”
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