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Hasil Pencarian

Ditemukan 15462 dokumen yang sesuai dengan query
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Hobbs, Marvin
Blue Ridge Summit, Pa.: Tab Books, 1981
621.385 7 HOB m
Buku Teks  Universitas Indonesia Library
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New York: IEEE Press : Sole Worldwide distributor, J. Wiley, 1982
621.387 ELE (1)
Buku Teks  Universitas Indonesia Library
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Smith, Sydney F.
Oxford : Oxford University Press, 1978
621.385 SMI t
Buku Teks  Universitas Indonesia Library
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Briley, Bruce E.
Reading, Mass : Addison-Wesley, Advanced Book Program , 1983
621.385 7 BRI i (1)
Buku Teks  Universitas Indonesia Library
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New York : Van Nostrand Reinhold , 1970
621.325 4 KRA m
Buku Teks  Universitas Indonesia Library
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Syed Riffat Ali
New York: McGraw-Hill, 1997
621.387 ALI d
Buku Teks  Universitas Indonesia Library
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Benzaouia, Abdellah
"Saturated switching systems treats the problem of actuator saturation, inherent in all dynamical systems by using two approaches: positive invariance in which the controller is designed to work within a region of non-saturating linear behaviour and saturation technique which allows saturation but guarantees asymptotic stability. The results obtained are extended from the linear systems in which they were first developed to switching systems with uncertainties, 2D switching systems, switching systems with Markovian jumping and switching systems of the Takagi-Sugeno type. The text represents a thoroughly referenced distillation of results obtained in this field during the last decade. The selected tool for analysis and design of stabilizing controllers is based on multiple Lyapunov functions and linear matrix inequalities. All the results are illustrated with numerical examples and figures many of them being modelled using MATLABĀ®. "
London: [Springer-Verlag , ], 2012
e20418722
eBooks  Universitas Indonesia Library
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Flowers, T. H.
London: John Wiley & Sons, 1976
621.385 FLO i (1)
Buku Teks  Universitas Indonesia Library
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Mar`atul Azizah
"Kebutuhan informasi dan semakin majunya perkembangan teknologi mendorong lahirnya Teknologi Informasi dan Komunikasi yang dapat memberi efektifitas dan efisiensi kerja manusia. Akses internet yang juga mudah dijangkau, kapan saja, dan dimana saja memicu lahirnya integrasi semua teknologi dan aplikasinya. Telepon, e-mail, instant messaging, bahkan video conference, mulai didorong agar dapat saling terintegrasi dan sinkron sehingga berbagai jenis aplikasi dan perangkatnya tersebut dapat diakses dalam satu waktu dan hanya dalam satu perangkat atau aplikasi. Unified Communications sebagai terobosan teknologi baru yang menjawab tantangan global ini diharapkan dapat memberikan layanan tidak hanya di dunia bisnis, namun juga di dunia pendidikan agar lebih meningkatkan efektifitas dan efisiensi sivitas akademika dalam melaksanakan aktivitas kesehariannya. Integrasi dan kemudahan ini bukan lantas tanpa meninggalkan masalah. Aspek keamanan menjadi sangat penting untuk mendukung kualitas layanan. Pada skripsi ini diimplementasikan aplikasi telepon berbasis VoIP dengan skenario pengamanan pada protokol SIP yang berbeda, yaitu tanpa adanya metode keamanan (RTP non-secure), SRTP, dan SSL. Kemudian dianalisa bagimana kinerja dan keamanan pada aplikasi IP Video Telephony sebelum dan sesudah menggunakan metode secure-SIP. Dari hasil uji coba, didapatkan bahwa QoS berupa delay, jitter, packet loss, dan throughput tidak mengalami perubahan yang signifikan dan masih memenuhi standar ITU-T. Nilai delay yang didapatkan sebelum pengamanan SIP sebesar 33,974 ms, sedangkan setelah implementasi secure-SIP naik menjadi 39,964 ms. Untuk nilai jitter dengan dan tanpa menggunakan secure-SIP sekitar 0,6 ms. Tidak ada paket yang hilang, dalam hal ini nilai packet loss sebesar 0%. Sedangkan nilai throughput sekitar 50 paket/detik.

Information needs and more advanced technological developments led to the establishment of information and communication technology which allowed human to work more effectively and efficiently. Internet access which available in anytime and anywhere, also triggered the integration of all means of technology and its applications. Telephone, e-mail, instant messaging, even video conference, are all begin to be integrated and synchronized so that they all could be accessed all at once, in a single device or application. As a new technological advancement, Unified Communications is expected to not only serve the business world, but also education, to increase the effectiveness and efficiency in conducting their daily activities. But this integration and ease comes with some unfavorable aspect. Security aspect becomes a very important part to support quality of services. This final paper was implemented the IP telephony for VoIP application with security scenario on different SIP protocol: RTP (non-secure), SRTP, and SSL. Then, the the performance and security on IP Video Telephony after and prior to the implementation of secure-SIP method was analyzed. The results show that QoS in forms of delay, jitter, packet loss and throughput, did not reveal significant changes and is still within the standard of ITU-T. Delay measurement prior to the SIP securing is 33,974 ms, whereas after the implementation of secure SIP, it increase to 39,964 ms. As for the jitter measurement, with or without secure-SIP, is approximately 0,6 ms. No packets are lost, so the value of packet loss is 0%. Throughput is about 50 packet/second."
Depok: Fakultas Teknik Universitas Indonesia, 2011
S62658
UI - Skripsi Membership  Universitas Indonesia Library
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Doren, Arnold H. van
Reston, Virginia: Reston Publishing, 1982
621.381 95 VAN d
Buku Teks  Universitas Indonesia Library
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