Bounds on the Number of Vectors Having a Specified Maximum
نویسندگان
چکیده
Code Division Multiple Access (CDMA) technology allows a large number of mobile radio users to share limited bandwidth simultaneously. This is achieved by spreading individual users’ signals over available bandwidth with orthogonal spreading codes—the orthogonality of the spreading codes allows individual signals to be distinguished. The effective use of bandwidth in this system is a considerable improvement over older frequency or time division multiple access techniques; however, further improvements are possible and are of great value as the cost of licensed bandwidth rises into the billions of dollars.
منابع مشابه
Lower bounds on the signed (total) $k$-domination number
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