منابع مشابه
Random Notes on CDMA
1 CDMA The basic idea behind CDMA is to assign each user a signature (also called a code-word), s m (t). Users will use antipodal signaling (i.e., multiplying their signatures by ±1 to send data. Thus, what the receiver sees is (idealistically) r(t) = m b m s m (t) + w(t) where the b m are the users' bits (again, ±). We also generally assume that the system is interference limited so that the n...
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The theory of random real numbers is exceedingly well-developed, and fascinating from many points of view. It is also quite challenging mathematically. The present notes are intended as no more than a gateway to the larger theory. They review just the most elementary part of the theory (bearing on Kolmogorovand Martin-Löf-randomness). We hope that the simple arguments presented here will encour...
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When we use mathematical tools, such as differential equations, probability, or systems of linear equations, to describe a real-world situation, we say that we are employing a mathematical model. Such models must be sufficiently sophisticated to capture the essential features of the situation, while remaining computationally manageable. In this chapter we are interested in one particular type o...
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These notes are under construction. They constitute a combination of what I have said in the lectures, what I will say in future lectures, and what I will not say due to time constraints. Some sections are very brief, and this is generally because they are not yet written. Some of the “problems and exercises” describe things that I am actually going to write down in detail in the text. This is ...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1956
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay1919