Coding for a multiple access OR channel: A survey
نویسندگان
چکیده
منابع مشابه
Coding for a Multiple Access OR Channel: a Survey
The signature coding for M active users out of T total users over a multiple access OR channel is considered. The mathematical problem is equivalent to the M -coverfree problem of extremal set theory. We survey the upper and lower bounds on the minimal code word length n(T,M), and present some code constructions. According to the current state of the theory, for 1 M T 1 2 M2 logM log T ≤ n(T,M)...
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Extensive researches on Wireless Sensor Networks (WSNs) have been performed and many techniques have been developed for the data link (MAC) layer. Most of them assume single-channel MAC protocols. In the usual dense deployment of the sensor networks, single-channel MAC protocols may be deficient because of radio collisions and limited bandwidth. Hence, using multiple channels can significantly ...
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ژورنال
عنوان ژورنال: Discrete Applied Mathematics
سال: 2008
ISSN: 0166-218X
DOI: 10.1016/j.dam.2005.03.033