Implementation of Multiple Access Techniques Applicable for Maritime Satellite Communications

• Autorzy: Ilcev S. D.

Identyfikatory

DOI

10.12716/1001.07.04.08

• Języki publikacji: EN

Abstrakty

EN

In this paper are introduced fundamentals, characteristics, advantages and disadvantages of Multiple Access (MA) employed as transmission techniques in the Maritime Mobile Satellite Communications (MMSC) between ships and Coast Earth Station (CES) via Geostationary Earth Orbit (GEO) or Not-GEO satellite constellations. In fixed satellite communication, as a rule, especially in MMSC many users are active at the same time. The problem of simultaneous communications between many single or multipoint mobile satellite users can be solved by using MA technique, such as Frequency Division Multiple Access (FDMA), Time Division Multiple Access (TDMA), Code Division Multiple Access (CDMA), Space Division Multiple Access (SDMA) and Random (Packet) Division Multiple Access (RDMA). Since the resources of the systems such as the transmitting power and the bandwidth are limited, it is advisable to use the channels with complete charge and to create a different MA to the channel. This generates a problem of summation and separation of signals in the transmission and reception parts, respectively. Deciding this problem consists in the development of orthogonal channels of transmission in order to divide signals from various users unambiguously on the reception part.

Słowa kluczowe

EN

Global Maritime Distress and Safety System (GMDSS); Maritime Mobile Satellite Communications (MMSC); Multiple Access (MA); Multiple Access Techniques; Code Division Multiple Access (CDMA); Time Division Multiple Access; TDMA; Frequency Division Multiple Access (FDMA); Random (Packet) Division Multiple Access (RDMA)

• Wydawca: Faculty of Navigation, Gdynia Maritime University
• Czasopismo: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
• Rocznik: 2013
• Tom: Vol. 7, no. 4
• Strony: 529--540
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Ilcev S. D.

• Durban University of Technology (DUT), South Africa

Bibliografia

• [01] Ilcev D. S., “Global Mobile Satellite Communications for Maritime, Land and Aeronautical Applications”, Book, Springer, Boston, 2005.
• [02] Freeman R.L., “Radio systems design for telecommunications (1‐100 GHz)”, John Wiley, Chichester, 1987.
• [03] Ilcev D. S., “Global Mobile Communication, Navigation and Surveillance (CNS)”, Manual, DUT, Durban 2011 [www.dut.ac.za/space_science].
• [04] Solovev V.I. & Others, “Svyaz na more”, Sudostroenie, Leningrad, 1978.
• [05] Maral G. & Other, “Satellite Communications Systems”, Wiley, Chichester, 2009.
• [06] Susi A. & Others, “Multiple Access in Mobile Satellite Communications”, PSN, ASSI (Asosiasi Satelit Indonesia), Electro Online, 1999.
• [07] Group of Authors, “Handbook ‐ Mobile Satellite Service (MSS)”, ITU, Geneva, 2002.
• [08] Zhilin V.A., “Mezhdunarodnaya sputnikova sistema morskoy svyazi – Inmarsat”, Sudostroenie, Leningrad, 1988
• [09] Ohmory S., Wakana. H & Kawase S., “Mobile Satellite Communications”, Artech House, Boston, 1998.
• [10] Venskauskas K.K., “Sistemi i sredstva radiosvyazi morskoy podvizhnoy sluzhbi”, Sudostroenie, Leningrad, 1986.
• [11] Maini A.K. & Agrawal V., “Satellite Technology ‐ Principles and Applications”, John Wiley, Chichester, 2007.
• [12] Zaharov V. & Others, “Smart Antenna Application for Satellite Communications with SDMA”, Journal of Radio Electronics, Moscow, 2001.