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"Contents :- Preface - Chapter 1: Hot Services and Trends in the Satellite Industry - Chapter 2: Defense and Homeland Security Applications - Chapter 3: Digital Broadcast Services and New Broadband IP Technologies - Chapter 4: Trends in the Earth Sector: VSATs, Handhelds, Teleports, and Other Satellite Terminals - Chapter 5: International Satellite Trends - Chapter 6: Trends in Regulatory Standards and Frequency Allocations - Chapter 7: Industry Trends: Mergers and Acquisitions, Combined Satellite and Fiber Networks - Chapter 8: Conclusions and Findings - Appendix A: Delphi Survey Results - Appendix B: Key Satellite Industry Players - Appendix C: Further Information on the Satellite Industry - Appendix D: Glossary "

"Spektrum frekuensi radio merupakan sumber daya alam yang jumlahnya terbatas. Diperlukan penataan alokasi spektrum secara baik dalam mengoptimalkan penggunaannya, salah satunya adalah frekuensi sharing. Kepdirjen no.119/DIRJEN/2000 Indonesia mengijinkan adanya penggunaan bersama frekuensi 3.5 GHz antara dinas tetap satelit (Fixed Satellite Service) dan layanan akses pita lebar berbasis nirkabel (Broadband Wireless Access). Kurangnya pertimbangan teknis dan ketidaksiapan badan regulasi menyebabkan timbulnya permasalahan interferensi sehingga terjadi kerusakan data dan putusnya layanan FSS. Oleh karena itu, dilakukan revisi terhadap kepdirjen sebelumnya dengan Rancangan Peraturan Menteri Komunikasi Dan Informatika Nomor: /PER/M.KOMINFO/.../2007 yang isi diantaranya, pada pasal 16 ayat 3 menyebutkan bahwa penyelenggara BWA eksisting pada pita frekuensi radio 3.5 GHz wajib migrasi ke pita frekuensi radio 3.3 GHz selambat-lambatnya 2 tahun sejak ditetapkan. Disimulasikan frekuensi sharing 3.5 GHz antara FSS dan BWA dengan software SPECTRAemc untuk daerah Jakarta. Selanjutnya diusulkan teknik mitigasi interferensi yang dapat digunakan agar kedua layanan tersebut tetap beroperasi dengan baik hingga batas dilakukannya migrasi yaitu 2 tahun mendatang.

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Radio frequency spectrum is a limited natural resources which needed good management to optimalize its use, one of the way is sharing frequency. No.119/Dirjen/2000 Indonesian kepdirjen permit the co-existence of frequency usage in 3.5 GHz between Fixed Satellite Service and Broadband Wireless Access.

Lack of technical consideration and awareness of national regulator causes interference problems that disrupt FSS services. Therefore, revision has been done to the previous kepdirjen with Number: /PER/M.KOMINFO/.../2007 which one of the content is, section 16 article 3, mention that eksisting BWA organizer at frequency band 3.5 GHz must be migrated to the frequency band 3.3 GHz at the latest 2 year since specified.

Simulated sharing frequency at 3.5 GHz between BWA and FSS with SPECTRAemc software for Jakarta area. Hereinafter proposed the interference mitigation technique that able to be used to ensure both of the services remain to operate well until the next 2 years."

"Komunikasi satelit merupakan salah satu platform bisnis PT Telkom dalam memberikan layanan komunikasi bagi seluruh wilayah di Indonesia. Mengingat Indonesia adalah negara Maritim yang terdiri dari pulau-pulau sehingga membutuhkan suatu sistem komunikasi yang dapat menghubungkan seluruh wilayah di Indonesia hingga ke daerah-daerah terpencil. Namun dengan perkembangan beragam alternatif teknologi komunikasi lainnya dan persaingan antar operator satelit baik dalam maupun luar negri membuat pangsa pasar bisnis satelit menjadi berkurang. Untuk mengembangkan bisnis di bidang satelit PT Telkom memutuskan untuk membeli satelit baru. Namun dengan kondisi industri satelit tersebut perlu dilakukan analisis untuk melihat kelayakan ekonomi feasibility investasi dari implementasi satelit tersebut. Penelitian ini menggunakan metode tekno ekonomi. Hasil penelitian menunjukkan bahwa nilai NPV yang diperoleh sebesar 38,666.000, IRR sebesar 14.75 dan payback period selama 6.17 tahun. Berdasarkan parameter tersebut dapat dilihat bahwa investasi tersebut masih tergolong layak untuk dilanjutkan.

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Satellite communication is one of the business platform of PT Telkom in providing communications services to all regions in Indonesia. As Indonesia is a maritime country that comprising many islands thus requiring a communication system that connects all regions in Indonesia, even to the remote areas. However, with the development of various alternative communication technologies makes the market share of the satellite business will be reduced. To develop the satellite bussiness, PT Telkom decided to procure a new satellite. But with the satellite industry condition, an economic analysis need to be done to see whether the investment is feasible. This research is using techno economic method. The research result shows that NPV value is 38,666.000, IRR is 14.75 , and payback period duration is 6.17 years. Based on those parameters can be seen that the investment is relatively feasible to proceed."

"The simplest model that is frequently used for a transmission channel is the additive white Gaussian noise (AWGN) channel model. In this model the received signal is the sum of the transmitted signal and Gaussian noise. The simple channel model has great theoretical and practical importance and is an accurate model for many communication channels, such as satellite and deep space communication channels. In many communication systems, however, the channels are subject to various impairments in addition to the additive noise. For these channels the simple model of AWGN is no longer valid and one must consider more practical and complex channel models. One of the such channel types which frequently occur in radio communication is the fading channel.In mobile radio communication system, the propagation between a base and a mobile station is not only by a direct line-of-sight path, but via many paths. These propagation paths depend largely on the. scattered reflection from many obstacles near the base and mobile stations. The received signal, at any place, consist of a large number of waves arriving from many directions. These multipath waves interfere and produce a varying field strength. The base station receiver experience similar fading as the mobile transmitter moves. The signal fluctuation rate is proportional to the vehicle speed. In many fading channels, in addition to the diffused multipath fading, there exists a dominant line-of-sight (direct) signal component. Denoting the direct component by Acos(2πfct), the received signal then can be written as r(t)= (A + a1 (t)) cos(2πfct) + aQ sin(2πfct)"

"Trellis coded modulation (TCM) formats with their excellent bandwidth and power efficiency have been widely employed in various communication systems. For mobile satellite communications, trellis coded (TC) M-ary phase shift keying (MPSK) is the primary candidate modulation technique. In the first generation mobile satellite systems, co-channel interference (CCI) does not pose a serious problem. However, second generation systems are expected to reuse frequency to increase the orbit slot spectral efficiency. Then the CCI from adjacent beams and adjacent satellite will be dominant factor determining the system performance and overall capacity. Mobile satellite communication is also suffered from strong variations of the received signal power due to the multipath fading. Typically, mobile satellite channels are modeled as Rician or Nakagami fading; that is the received signal consists of a constant line of sight signal component and a Rayleigh distributed diffuse signal component. Therefore, the performance of system on mobile satellite channels is subject to both fading and CCI.TCM and antenna diversity are two attractive methods to combat fading and CC1 effects in the mobile satellite communication systems. The research focuses on the using of TCM and antenna diversity to combat the fading and CCI effects on mobile satellite system, and analyze their performance characterized by bit error rate (BER). Because of multipath propagation , the mobile satellite communication channel is modeled as a Rician or Nakagami fading channel. This report, the BER performance of TC asymmetric MPSK with CCI and TC asymmetric MPSK with diversity on mobile satellite communication systems will be investigated and analyzed.First, the BER performance of TC- asymmetric MPSK in the presence of undesired CCI with multiple interferers and fading channel is investigated. The fading statistic for desired signal is Nakagami fading and the undesired interference signals are Rayleigh fading. We assume that all the interferers are unmodulated because most of errors are produced by Rayleigh fading itself rather than the modulating sequence. This model assumes that all interfering signals have aligned symbol timing and no cross channel interference symbol interfering (ISi) effects. The desired signal is assumed to have Nakagami distribution implying that a dominant multipath exists in transmission. The desired and the interfering carrier have no phase coherence. We derive the BER performance of TC asymmetric MPSK in the presence CCI and fading channels by using the first error event method. It is shown that the BER performance of TC asymmetric MPSK in the presence of CCI is better than that of system with asymmetric MPSK. The BER performance of TC asymmetric MPSK is improved as increasing either the Nakagami fading parameter or the value of signal-to-interference ratio (SIR). As the Nakagami fading parameter is increased the phase signal of MPSK is also increased.Second, the BER performance of TC MPSK with 2 branch selection combining (SC) and maximal ratio combining (MRC) diversities on independent and spatially correlated Nakagami fading channel are investigated. The upper bound bounds using the transfer function bounding technique are derived and several numerical results are shown. Is shown that the BER performance of TC 8PSK with MRC diversity is better than that of system with SC diversity. Although the correlation between branches causes the signal-to-noise ratio (SNR) loss (relative to independent fading case) for SC and MRC diversities, the diversity can lead to achieve the diversity gain compared to the system without diversity.Third, the BER performance of TC 8PSK in the presence of undesired CCI with multiple interferers and fading channel is investigated by using computer simulation. The fading statistic for desired signal is Nakagami fading and the undesired interference signals are characterized by Rayleigh fading. The I3ER performance of TC 8PSK in the presence CC1 and fading channels is simulated by using the first error event method. It is shown from the result that the simulation result of the performance of TC 8PSK in the presence CCI and fading channels is closed to the analytical result."

"The field of satellite communications represents the world's largest space industry. Those who are interested in space need to understand the fundamentals of satellite communications, its technology, operation, business, economic, and regulatory aspects. This book explains all this along with key insights into the field's future growth trends and current strategic challenges."