A Comparison of Cdma, Tdma and Slotted Aloha Multiple Access Schemes in Cellular Mobile Radio Systems
نویسنده
چکیده
The increasing demand for mobile radio services and the scarce bandwidth available suggest to devote considerable research eeorts to nd more eecient multiple access techniques in order to improve the system capacity. In this work we compare the system performance of three mobile radio systems: the well known TDMA system, which is the basis of the European GSM, the recent CDMA system (a standard introduced by Qualcomm) and the proposed slotted Aloha packet system. The results of this paper show that the performance of slotted Aloha is comparable or better than CDMA, while exhibiting a virtual insensitivity to propagation conditions.
منابع مشابه
Forward Link Performance of Multiple Access Schemes in Cellular Systems
Silvano Pupolin , Luciano Tomba , Michele Zorzi Dipartimento di Elettronica e Informatica, University of Padova Via G. Gradenigo 6/A, I-35131 Padova (Italy) Dipartimento di Elettronica e Informazione, Politecnico of Milano Piazza Leonardo da Vinci 32, I-20133 Milano (Italy) Abstract—The actual trend towards Personal Communication Systems suggests to devote considerable research efforts to find ...
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