Singh Ram Sewak (70 results)

Taschenbuch. Condition: Neu. Cooperative Spectrum Sensing For Cognitive Radio | Cooperative Spectrum Sensing for Interweave Cognitive Radio with Signal to Noise Ratio Enhancement Using DWT | Ram Sewak Singh (u. a.) | Taschenbuch | Englisch | 2022 | LAP LAMBERT Academic Publishing | EAN 9786205510919 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

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Taschenbuch. Condition: Neu. Analyse de l'efficacité spectrale du MIMO massif sans cellule en liaison descendante | Analyse de l'efficacité spectrale de la MIMO massive sans cellule à l'aide d'un précodeur hybride | Ram Sewak Singh (u. a.) | Taschenbuch | Französisch | 2023 | Editions Notre Savoir | EAN 9786206645085 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

Taschenbuch. Condition: Neu. Détection coopérative du spectre pour la radio cognitive | Détection coopérative du spectre pour la radio cognitive entrelacée avec amélioration du rapport signal/bruit par DWT | Ram Sewak Singh (u. a.) | Taschenbuch | Französisch | 2023 | Editions Notre Savoir | EAN 9786205602485 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

Taschenbuch. Condition: Neu. Kooperatiwnoe zondirowanie spektra dlq kognitiwnogo radio | Kooperatiwnoe zondirowanie spektra dlq mezhsetewogo kognitiwnogo radio s uluchsheniem sootnosheniq signal/shum s pomosch'ü DWT | Ram Sewak Singh (u. a.) | Taschenbuch | Russisch | 2023 | Sciencia Scripts | EAN 9786205602515 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

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Taschenbuch. Condition: Neu. Analisi dell'efficienza spettrale del MIMO massivo senza celle in downlink | Ram Sewak Singh (u. a.) | Taschenbuch | Italienisch | 2023 | Edizioni Sapienza | EAN 9786206645108 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

Taschenbuch. Condition: Neu. Rilevamento cooperativo dello spettro per la radio cognitiva | Rilevamento cooperativo dello spettro per radio cognitive interweave con miglioramento del rapporto segnale/rumore mediante DWT | Ram Sewak Singh (u. a.) | Taschenbuch | Italienisch | 2023 | Edizioni Sapienza | EAN 9786205602492 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Taschenbuch. Condition: Neu. Detecção Cooperativa de Espectro para Rádio Cognitivo | Detecção Cooperativa de Espectro para Rádio Cognitivo Interweave com Aumento da Relação Sinal/Ruído usando DWT | Ram Sewak Singh (u. a.) | Taschenbuch | Portugiesisch | 2023 | Edições Nosso Conhecimento | EAN 9786205602508 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Taschenbuch. Condition: Neu. Análise da eficiência espetral do MIMO massivo sem células em ligação descendente | Ram Sewak Singh (u. a.) | Taschenbuch | Portugiesisch | 2023 | Edições Nosso Conhecimento | EAN 9786206645122 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Taschenbuch. Condition: Neu. Analyse der spektralen Effizienz von Downlink Cell-Free Massive MIMO | Analyse der spektralen Effizienz von zellfreiem massivem MIMO unter Verwendung hybrider Precoder | Ram Sewak Singh (u. a.) | Taschenbuch | 116 S. | Deutsch | 2023 | Verlag Unser Wissen | EAN 9786206645092 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.…

Taschenbuch. Condition: Neu. Kooperative Spektrumerfassung für kognitives Radio | Kooperatives Spectrum Sensing für Interweave Cognitive Radio mit Verbesserung des Signal-Rausch-Verhältnisses durch DWT | Ram Sewak Singh (u. a.) | Taschenbuch | 100 S. | Deutsch | 2023 | Verlag Unser Wissen | EAN 9786205602423 | Verantwortliche Person für die EU: SIA OmniScriptum Publishing, Brivibas Gatve 197, 1039 RIGA, LETTLAND, customerservice[at]vdm-vsg[dot]de | Anbieter: preigu.…

Condition: Hervorragend. Zustand: Hervorragend | Sprache: Deutsch | Produktart: Bücher | Die rasante Entwicklung der Kommunikationstechnologien verbindet die Welt schneller als je zuvor. Dies hat jedoch zu einer Verknappung des Frequenzspektrums geführt, da die verfügbare Kommunikationsbandbreite begrenzt ist. Um die Datenübertragungsraten zu maximieren und gleichzeitig eine feste Bandbreite zu nutzen, ist ein Mechanismus zur Verbesserung der spektralen Effizienz erforderlich. Bei verteilten MIMO-Systemen (Distributed Massive Multiple Input Multiple Output) wird eine große Anzahl von Sendeantennen in der Nähe der Benutzergeräte (UEs) aufgestellt, um dieses Ziel zu erreichen. In zellularen Massive-MIMO-Systemen können jedoch Signalinterferenzen an den Zellenrändern ein Problem darstellen. Um das Problem der Interferenzen an den Zellenrändern bei zellulärem Massive MIMO zu lösen, wurde das zellfreie Massive MIMO eingeführt, das sowohl Massive MIMO als auch verteilte MIMO-Prinzipien beinhaltet. Zellfreies Massive MIMO hat den Vorteil, dass die Benutzer näher an den Zugangspunkten (APs) platziert sind, was eine höhere spektrale Effizienz ermöglicht. Während zellenfreies Massive MIMO die spektrale Effizienz verbessert, sind Signalverarbeitungstechniken wie Vorcodierung erforderlich, um sie weiter zu maximieren.…

paperback. Condition: New. NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

Softcover. Condition: gut. 2023. Analyse der spektralen Effizienz von Downlink Cell-Free Massive MIMO In deutscher Sprache. pages.

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The rapid advancement of communication technologies is connecting the world faster than ever before. However, this has resulted in a scarcity of frequency spectrum as the available communication bandwidth is limited. To maximize data transmission rates while using a fixed bandwidth, a mechanism is needed to improve spectral efficiency. Distributed massive multiple input multiple output (MIMO) systems involve deploying a large number of transmitting antennas around user equipment (UEs) to achieve this goal. However, in cellular massive MIMO, signal interference around cell edges can present a problem. To address interference issues around cell edges in cellular massive MIMO, cell-free massive MIMO was introduced, which incorporates both massive MIMO and distributed MIMO principles. Cell-free massive MIMO is advantageous as it places users closer to access points (APs), enabling higher spectral efficiency. While cell-free massive MIMO improves spectral efficiency, signal processing techniques such as precoding are needed to maximize it further. 112 pp. Englisch.…

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Spectrum Underutilization, along with the growing issue of spectrum scarcity, has promoted a reassessment of how the radio frequency spectrum is used. Cognitive Radio technology comes as a solution which enhances the utilization of spectrum with systematic use of the scarce resource by opportunistic spectrum access. Among many spectrum sensing algorithms available, Energy Detector (ED) is preferred since it doesn't need the prior information about primary user's signals and are having low computational complexity. However, the performance of ED is directly proportional to signal to noise ratio (SNR) which leads to poor performance at the low SNR regime. In order to alleviate the detection problem at low SNR, Discrete Wavelet Transform (DWT) based denoising of the primary user signal is applied in the front end of ED. The effect of denoising prior to ED is analysed by employing six different mother wavelets as Haar, Daubechies, BiorSplines, ReverseBior, Coiflets and Fejer-Korovkin and, the performance metrics of ED is analysed using single stage wavelet based ED. Simulation results have shown that the Reverse Bior mother wavelet approach improves all the performance matrices. 92 pp. Englisch.…

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Nedoispol'zowanie spektra, narqdu s rastuschej problemoj nehwatki spektra, sposobstwowalo pereocenke togo, kak ispol'zuetsq radiochastotnyj spektr. Tehnologiq kognitiwnogo radio qwlqetsq resheniem, kotoroe powyshaet äffektiwnost' ispol'zowaniq spektra za schet sistematicheskogo ispol'zowaniq deficitnogo resursa putem opportunisticheskogo dostupa k spektru. Sredi mnogih dostupnyh algoritmow zondirowaniq spektra predpochtenie otdaetsq änergeticheskomu detektoru (ED), poskol'ku on ne trebuet predwaritel'noj informacii o signalah osnownogo pol'zowatelq i imeet nizkuü wychislitel'nuü slozhnost'. Odnako proizwoditel'nost' ED prqmo proporcional'na otnosheniü signal/shum (SNR), chto priwodit k plohoj proizwoditel'nosti w rezhime nizkogo SNR. Chtoby oblegchit' problemu obnaruzheniq pri nizkom SNR, w perednej chasti ED primenqetsq diskretnoe wejwlet-preobrazowanie (DWT), osnowannoe na denuarizacii signala osnownogo pol'zowatelq. Jeffekt denuazifikacii pered ED analiziruetsq s pomosch'ü shesti razlichnyh materinskih wejwletow: Haar, Daubechies, BiorSplines, ReverseBior, Coiflets i Fejer-Korovkin. Rezul'taty modelirowaniq pokazali, chto podhod s ispol'zowaniem materinskogo wejwleta Reverse Bior uluchshaet wse matricy proizwoditel'nosti. 100 pp. Russisch. …

Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Spectrum Underutilization, along with the growing issue of spectrum scarcity, has promoted a reassessment of how the radio frequency spectrum is used. Cognitive Radio technology comes as a solution which enhances the utilization of spectrum with systematic .…

Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. The rapid advancement of communication technologies is connecting the world faster than ever before. However, this has resulted in a scarcity of frequency spectrum as the available communication bandwidth is limited. To maximize data transmission rates whil.…

Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Spectrum Underutilization, along with the growing issue of spectrum scarcity, has promoted a reassessment of how the radio frequency spectrum is used. Cognitive Radio technology comes as a solution which enhances the utilization of spectrum with systematic use of the scarce resource by opportunistic spectrum access. Among many spectrum sensing algorithms available, Energy Detector (ED) is preferred since it doesn't need the prior information about primary user's signals and are having low computational complexity. However, the performance of ED is directly proportional to signal to noise ratio (SNR) which leads to poor performance at the low SNR regime. In order to alleviate the detection problem at low SNR, Discrete Wavelet Transform (DWT) based denoising of the primary user signal is applied in the front end of ED. The effect of denoising prior to ED is analysed by employing six different mother wavelets as Haar, Daubechies, BiorSplines, ReverseBior, Coiflets and Fejer-Korovkin and, the performance metrics of ED is analysed using single stage wavelet based ED. Simulation results have shown that the Reverse Bior mother wavelet approach improves all the performance matrices.…

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -El rápido avance de las tecnologías de la comunicación está conectando el mundo más rápido que nunca. Sin embargo, esto ha provocado una escasez de espectro de frecuencias, ya que el ancho de banda de comunicación disponible es limitado. Para maximizar las velocidades de transmisión de datos utilizando un ancho de banda fijo, se necesita un mecanismo que mejore la eficiencia espectral. Los sistemas masivos distribuidos de entrada múltiple y salida múltiple (MIMO) implican el despliegue de un gran número de antenas transmisoras alrededor de los equipos de usuario (UE) para lograr este objetivo. Sin embargo, en los sistemas MIMO masivos celulares, las interferencias de señal en los bordes de las celdas pueden suponer un problema. Para resolver los problemas de interferencia en los bordes de las celdas en MIMO masivo celular, se introdujo el MIMO masivo sin celdas, que incorpora los principios del MIMO masivo y del MIMO distribuido. La MIMO masiva sin células es ventajosa porque sitúa a los usuarios más cerca de los puntos de acceso (AP), lo que permite una mayor eficiencia espectral. Aunque la MIMO masiva sin células mejora la eficiencia espectral, se necesitan técnicas de procesamiento de señales como la precodificación para maximizarla aún más. 112 pp. Spanisch.…

Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -La infrautilización del espectro, junto con el creciente problema de la escasez del mismo, ha promovido una reevaluación de cómo se utiliza el espectro de radiofrecuencias. La tecnología de radio cognitiva se presenta como una solución que mejora la utilización del espectro con un uso sistemático del escaso recurso mediante el acceso oportunista al espectro. Entre los muchos algoritmos de detección del espectro disponibles, se prefiere el detector de energía (ED), ya que no necesita información previa sobre las señales del usuario primario y tiene una complejidad computacional baja. Sin embargo, el rendimiento del ED es directamente proporcional a la relación señal/ruido (SNR), lo que conduce a un rendimiento pobre en el régimen de baja SNR. Para mitigar el problema de la detección con una SNR baja, se aplica una eliminación de ruido basada en la transformada wavelet discreta (DWT) a la señal del usuario primario en el extremo frontal de la ED. El efecto de la eliminación de ruido antes de la ED se analiza empleando seis ondículas madre diferentes: Haar, Daubechies, BiorSplines, ReverseBior, Coiflets y Fejer-Korovkin. Los resultados de la simulación muestran que la ondícula madre Reverse Bior mejora todas las matrices de rendimiento. 100 pp. Spanisch.…