Bhupender Singh

Dans ce livre, nous avons principalement r sum les objectifs en mati re de d bit de donn es pour les technologies 5G venir, qui utiliseront un r seau de syst mes MIMO (entr es et sorties multiples) massifs multi-antennes innovants et utiliseront une plus grande largeur de bande des fr quences lev es, telles que 30 GHz dans la bande Ka. Cette mise en oeuvre r volutionnaire n cessite des syst mes d'antennes en r seau grande chelle comportant des centaines ou des milliers d' l ments d'antenne actifs qui fonctionnent de mani re coh rente et adaptative. Le d ploiement de nombreux l ments concentre la transmission et la r ception de l' nergie du signal dans des zones spatiales de plus en plus petites.

Neste livro, resumimos principalmente os objectivos da taxa de dados para as pr ximas tecnologias 5G, que utilizar o uma rede de sistemas MIMO (Multiple-Input-Multiple-Output) maci os e inovadores com v rias antenas e utilizar o mais largura de banda em frequ ncias elevadas, como 30 GHz na banda Ka. Esta implementa o inovadora requer sistemas de antenas de matriz em grande escala com centenas ou milhares de elementos de antena activos que funcionam de forma coerente e adaptativa. A implanta o de numerosos elementos concentra a transmiss o e a rece o da energia do sinal em reas espaciais cada vez mais pequenas.

In questo libro abbiamo riassunto gli obiettivi di velocit di trasmissione dei dati per le prossime tecnologie 5G, che impiegheranno una rete di innovativi sistemi MIMO (Multiple-Input-Multiple-Output) multi-antenna massiva e utilizzeranno una maggiore larghezza di banda ad alte frequenze, come i 30 GHz nella banda Ka. Questa rivoluzionaria implementazione richiede sistemi di antenne array su larga scala con centinaia o migliaia di elementi d'antenna attivi che operano in modo coerente e adattivo. La distribuzione di numerosi elementi concentra la trasmissione e la ricezione dell'energia del segnale in aree spaziali sempre pi piccole.

In diesem Buch haben wir vor allem die Datenratenziele f r die kommenden 5G-Technologien zusammengefasst, die ein Netzwerk innovativer massiver MIMO-Systeme (Multiple-Input-Multiple-Output) mit mehreren Antennen einsetzen und mehr Bandbreite bei hohen Frequenzen, wie 30 GHz im Ka-Band, nutzen werden. Diese bahnbrechende Implementierung erfordert gro angelegte Gruppenantennensysteme mit Hunderten oder Tausenden von aktiven Antennenelementen, die koh rent und adaptiv arbeiten. Durch den Einsatz zahlreicher Elemente wird die bertragung und der Empfang von Signalenergie auf immer kleinere r umliche Bereiche konzentriert.

Sikh history is an account of how and why a simple monolithic religion became political in its aims and military in its methods. It is a saga of brutal persecution, suffering, chivalry and vicissitudes of the Sikh people. It is the story of adversity, sacrifices, deprivations, and trials and tribulations during a prolonged life and death struggle against social and political oppression by tyrannical forces, resulting in the rise to power and founding of a kingdom by the Sikhs. Thereafter, it is the fulfillment of aims and aspirations, and then the collapse of Punjabi nationalism in a clash of arms with the British. Subsequent history is a tale of Anglo-Sikh relations; of joy and sorrow and the Sikh contribution in the freedom struggle during British rule. It also recounts the fate of the Sikhs in the partition of their homeland in 1947, and finally their position and status in Independent India, today. The narration is simple, clear and concise.