Presentasi WiMAX II
WiMAX II (IEEE 802.16m) adalah salah satu kandidat dari IMT Advanced, atau yang sering disebut sebagai 4G Mobile Network. Berbeda dengan LTE (Advanced), WiMAX II lahir dan didorong bukan dari industri seluler, melainkan dari industri komunikasi informasi. Tentu konvergensi terjadi. Namun ada nuansa yang membedakan teknologi-teknologi ini.
Sepanjang Semester II / 2009 dan Semester I / 2010, IEEE COMSOC telah menyelenggarakan seri seminar 4G Mobile Network Technologies. Tentu WiMAX II adalah salah satu yang selalu turut dikaji dalam seminar itu. Di bawah ini disampaikan salah satu presentasi dari WiMAX II yang beberapa kali telah dipaparkan dalam seminar yang diselenggarakan COMSOC itu.
Next Generation DVB and Cooperative Wireless Networking
This month, Comsoc launched two new free tutorials, which could be accessed by the IEEE members and by public.
The first tutorial titled Cooperative Wireless Networking. This tutorial introduces cooperation concept for wireless networks. Cooperation is known as an effective strategy in nature to achieve individual or common goals by forming cooperative groups. As the crossover between nature and engineering has always been fruitful, this tutorial is introducing cooperative concepts for wireless networks advocating mobile devices to cluster in a peer-to-peer fashion. In three lectures cooperation is advocated to overcome the most critical problems in mobile communication, known as energy consumption, security, and higher data rates. The first part will introduce the main rules for cooperation. Whether to cooperate or act autonomously has to be decided by each mobile device individually. Following the rule “The real egoistic behavior is to cooperate”, mutual aid among mobile devices will be applied if and only if it is beneficial for all group members. The second part is presenting cooperation concepts at the different protocol layers from applications to the physical layer. In the last part topics such as social mobile networks, game theory and genetic programming are presented.
The second tutorial titled Next Generation Digital Video Broadcast Standard. It is an overview of the new digital video broadcasting standard DVB-T2. The new standard approved by ETSI provides high definition television over terrestrial links by deploying new error detection codes, new modulation schemes, and news transmission formats.
Click the posters below to see the tutorials.
Free Papers: Context-Aware Services
Dalam pengelolaan network, dikenal Quality of Service. Sedang dalam pengelolaan service dan content, dikenal Quality of Context. Konteks adalah informasi yang menjadi latar belakang bagi proses komunikasi, membuatnya memiliki keakuratan sekaligus efisiensi. Salah satu konteks yang kini sedang banyak diaplikasikan adalah lokasi. LBS memungkinkan layanan-layanan menarik, seperti pencarian layanan berdasar posisi pemakai, interaksi antara pemakai dalam ruang yang terdeteksi, dan sebagainya. Namun masih banyak konteks yang berkait baik dengan pemakai, perangkat, network, dan dimensi lainnya: waktu pembicaraan, karakteristik pemakai (usia, jenis kelamin, afiliasi organisasi, bank, hobby), perangkat (mobile atau notebook atau TV, resolusi layar, platform), hingga network (IPTV, selular, WiFi, dll). Dalam serial kuliah 4G Mobile Network, Comsoc selalu menyinggung context-aware applications sebagai aplikasi yang akan mendorong bertumbuhnya 4G Network & Services.
Beberapa paper berikut diberikan gratis oleh IEEE Computer Society sebagai bagian dari upaya memperkenalkan Context-Aware Services ke masyakat akademis dan industri.
- The Telecom Industry and Context Awareness
- A Contextualized and Personalized Approach for Mobile Search
- Timely and Keyword-Based Dynamic Content Selection for Public Displays
- Context-Aware Automatic Query Refinement Using Indian-Logic Based Ontology
- Defeasible Contextual Reasoning with Arguments in Ambient Intelligence
Free Papers: IMS
The IMS (IP Multimedia Subsystem) is an architectural framework for delivering Internet Protocol (IP) multimedia services. Originally designed by the 3GPP as a part of the vision for evolving mobile networks beyond GSM, this vision was later updated by 3GPP, 3GPP2 and TISPAN by requiring support of networks other than GPRS, such as Wireless LAN, CDMA2000 and fixed line. IMS uses IETF protocols wherever possible, e.g. Session Initiation Protocol (SIP).
IEEE Communications Society has chose IMS as this month’s featured technology. Papers discussing IMS are provided free this month for the visitors of IEEE Comsoc. Those include the IMS architecture and strategy; its usage in 3G, 4G, and IPTV; and the potential applications to develop over it.
Visit the free papers here: www.comsoc.org/form/tech-focus-registration-ims-ip-multimedia-systems
New Tutorial: Optic and WDM
A new free tutorial has been launched at the Comsoc tutorial site. Titled Basics of Optical Communications and WDM, the tutorial covers the functions and operational characteristics of available optical fibers, transceivers, and specialized passive and active components needed for designing modern optical fiber communication links. It explains the distortion effects that dispersion and nonlinear processes have on signals, defines bit error rate concepts, and identifies measurement equipment and procedures used to verify system operating characteristics. The tutorial also defines wavelength division multiplexing (WDM) concepts, components, and applications. The topics include characteristics of wavelength multiplexers, optical amplifier uses in WDM links, the basics of Raman amplification, and implementation of WDM-based networks.
Visit the free tutorial: http://tlk.lv/2d
Purwokerto, Malang, Yogyakarta
IEEE Communications Society plans to carry out these activities for June 2010:
Seminar on WiMAX Network Dimensioning
Purwokerto, June 12th 2010.
Presenters: Hadi Hariyanto MSc & FX Ari Wibowo MSi
Discussions:
- Introduction to WiMAX: features, AAS/MIMO, QoS, dimensioning
- Coverage Aspects in RF Planning: link budget, propagation models (Cost 231 Hata, Stanford Univ, ECC-33), adaptive modulation, MIMO, BS calculation, fixed vs mobile WiMAX.
- Capacity Aspects in RF Planning: capacity dan traffic model, throughput and capacity calculation, radio bandwidth, MIMO and frequency planning, BS calculation.
Contact: Nova Rismartanto (+62-856-4733-6666, richie_te@yahoo.com)
Lecture on New Convergence
Brawijaya University, Malang, June 19th 2010
Lecturer: Kuncoro Wastuwibowo, M Ary Murti, Arief Hamdani Gunawan
Discussions:
- 4G Mobile Technologies: OFDMA, CR/DSA, All-IP Network, Context-Aware Applications, IMS
- 4G Candidates: LTE and WiMAX II, comparison, interoperability, applications
- New Convergence: How to configure IMS, SDP, IPTV, Web 2.0
Contact: Department of Electrotechnics, Brawijaya University
Full-Day Training on LTE
Yogyakarta, June 26th 2010
Instructor: Arief Hamdani Gunawan
Syllabi:
- Introduction
- OFDM Technology Overview
- Bandwidth Utilisation, TDD and FDD
- Dimensioning
- Business Cases
Contact: Nova Rismartanto (+62-856-4733-6666, richie_te@yahoo.com)
Free Tutorials
Seperti pernah disampaikan, setiap bulan IEEE Communications Society memberikan tutorial-tutorial pilihan, yang beberapa di antaranya diberikan tanpa biaya. Ini merupakan kesempatan menarik untuk meningkatkan keahlian para anggota IEEE maupun para engineer pada umumnya. Tutorial ini gratis bukan saja bagi para anggota, tetapi bagi setiap pengunjung. Namun waktu bagi setiap tutorial terbatas hanya satu hingga dua bulan saja, kemudian akan digantikan oleh tema lainnya.
Seluruh tutorial dipaparkan oleh para pakar bidang-bidang yang dilingkupi dalam ruang minat IEEE Comsoc. Setiap tutorial memerlukan waktu antara 2 hingga 5 jam. Tutorial gratis yang saat ini sedang aktif diantaranya:
- Next Generation Wireless Broadband
Tutorial ini memberikan landasan yang kuat atas bakuan teknologi broadband wireless, yang meliputi WiMAX II (IEEE 802.16m), IEEE 802.22, dan LTE, dengan berbagai variasi keunggulannya. Topik yang dikaji meliputi layer fisik (PHY), modulasi dan coding adaptif, transmisi OFDMA dan SC-FDMA, sistem multi-antena, layer MAC (medium access control), transmisi FDD dan TDD, serta format frame. Juga dipaparkan kajian atas wireless relay, co-operative network, dan peningkatan kinerja cell edge pada jaringan OFDMA. - Generalized DFT for OFDM Communications
DFT (discrete Fourier transform) merupakan hal yang membangun bagian inti pada berbagai jenis teknologi transmisi broadband, dari xDSL hingga OFDM. Tutorial ini memaparkan Generalised DFT fasa non linear yang baru saja diperkenalkan, yang menawarkan peningkatan cukup besar pada DFT non linear. Contoh-contoh yang dibawakan meliputi kemampuan adaptif GDFT untuk mengatasi degradasi kinerja penguatan daya RF dan kinerja BER. Beberapa metode perancangan GDFT efisien dan kinerjanya dalam skenario komunikasi di dunia nyata juga ditelaah di sini. - IPv6 Transition
Komunikasi nirkawat generasi keempat mengharuskan aliran informasi yang seluruhnya dilakukan menggunakan protokol Internet dari ujung ke ujung. Dengan skala pemakaian komunikasi mobile yang besar, IPv4 tak mungkin lagi dipertahankan untuk pengalamatan piranti mobile di seluruh dunia di tahun-tahun mendatang. Maka transisi ke IPv6 merupakan hal yang harus mulai diseriusi, khususnya bagi pihak-pihak yang akan menjadi pelopor 4G Mobile.
Klik pada judul setiap tutorial untuk mulai mengikuti.
Seminar 4G di Purwokerto
Dari sisi pengembangan akademis, Purwokerto sudah mulai menampakkan geliatnya, dan tekadnya untuk berada di garda terdepan bersama dengan kota-kota lainnya. Melihat komitmen kuat ini, IEEE Communications Society melakukan kunjungan dalam bentuk Seminar Opening The Gates to 4G ke Purwokerto.
Bertempat di Asiatic Meeting Room, seminar diselenggarakan pada 10 April 2010. Koordinator di Purwokerto adalah Sdr Aries. Dari IEEE Indonesia Section hadir vice chairman Arief Hamdani Gunawan, dan dari IEEE Comsoc Indonesia Chapter hadir vice chairman F.X. Ari Wibowo.
Materi seminar meliputi: pengenalan atas IEEE, presentasi 4G requirement, presentasi LTE sebagai 4G candidate, dan presentasi WiMAX II sebagai 4g candidate.
4G Workshop by UPH Electrical Engineering and IEEE
Electrical Engineering Department of Universitas Pelita Harapan held a workshop titled 4G: LTE, WiMAX II, or Else? Technologies, Regulations, and Opportunities at MYC Multipurpose Room, UPH Lippo Village Campus. This workshop was held under the coordination of UPH and IEEE Communications Society Indonesia Chapter, a world-class association that aims to advance the technology. Workshop was carried out on Monday, 19 April 2010.
A message from UPH Rector Jonathan Parapak was for technology personnel to also pay attention to content as well. “The advanced technology is no doubt something good for human beings, but contents are also no less important since sophisticated technology would be useless if only used for negative things. The impact of the technology itself should be devoted to the welfare of society,” he said in the speech.
Information technology is growing fast each day. Now maybe we are familiar with the term 3G or even 3.5G for the latest one of data transmission process through internet. However, soon we will be dazzled by 4G technology, which has the speed up to 100MB/sec for uploading and 1GB/sec for downloading.
All of this was discussed in the workshop that presented five speakers who are competent in their respective field. Ihan Martoyo from UPH discussed “4G: It Is Not What You Think”, H. Arief Gunawan from Telkom and IEEE with the topic “LTE: The Technology Details”, Hadi Hariyanto from Telkom and IEEE on “WiMAX II: Technology and Challenges”, Denny Setiawan from UI on “4G Policy and Regulatory Challenges”, and Kusuma Lienandjaja from Ericsson Indonesia with the topic “Business Opportunities with 4G.” (UPH/cyn)
4G Mobile Workshop at UPH
