Analyses of Code Division Multiple Access (CDMA) Schemes for Global Mobile Satellite Communications (GMSC)
نویسندگان
چکیده
منابع مشابه
CDMA – Code Division Multiple Access
Code Division Multiple Access (CDMA) is probably the most interesting multiple access method provided by spread spectrum technology. CDMA refers to a multiple access method in which the individual terminals use spreadspectrum techniques and occupy the entire spectrum whenever they transmit. This paper focuses on direct-sequence spread-spectrum principles (processing gain, spreading, de-spreadin...
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The throughput and delay characteristics of a landmobile satellite channel are analyzed for both slotted ALOHA and slotted direct-sequence CDMA (code division multiple access), using binary phase shift keying (BPSK) modulation and forward error correction coding (FEC). In the case of CDMA, the application of path diversity techniques-maximal ratio combining and selection diversity-is also taken...
متن کاملCode division multiple access schemes for terrestrial and satellite mobile communication networks: Modeling and performance evaluation
This paper deals with the modeling and performance evaluation of different Code Division Multiple Access schemes suitable for applications in terrestrial and satellite mobile cornrnunication networks. The use of particular propagation channel models and the relative sensitivity of different demodulation schemes to their parameters are the subject the paper is focused on. In particular, an exten...
متن کاملCDMA(Code Division Multiplexing Access)
Multiple users can be served by the same bandwidth in wireless CDMA systems of spread spectrum. The use can used the bandwidth and different codes at the same time and any signal showed by one of the user is seen as interference. This interference is detected to the base station in the process of extracting data used by a specific signal utilized by a user. Users who are closer to the BS are th...
متن کاملCDMA(Code Division Multiplexing Access)
Multiple users can be served by the same bandwidth in wireless CDMA systems of spread spectrum. The use can used the bandwidth and different codes at the same time and any signal showed by one of the user is seen as interference. This interference is detected to the base station in the process of extracting data used by a specific signal utilized by a user. Users who are closer to the BS are th...
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ژورنال
عنوان ژورنال: TransNav, the International Journal on Marine Navigation and Safety of Sea Transportation
سال: 2020
ISSN: 2083-6473
DOI: 10.12716/1001.14.04.03