A New Optimization Model for Dynamic Power and Sub-Carrier Allocations in Packet-Centric OFDMA Cells
نویسندگان
چکیده
منابع مشابه
A New Optimization Model for Dynamic Power and Sub-Carrier Allocations in Packet-Centric OFDMA Cells
It is well known that applying dynamic resource allocation to down-link transmissions of OFDMA systems provides a significant performance increase, by taking advantage of diversity effects. In order to quantify the maximum possible gain achievable by applying dynamic mechanisms, several optimization problems have been suggested for studying a dynamic system’s optimal behavior. However, so far t...
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In today’s OFDMA networks, the transmission power is typically fixed and the same for all the sub-carriers that compose a channel. The sub-carriers though, experience different degrees of fading and thus, the received power is different for different sub-carriers; while some frequencies experience deep fades, others are relatively unaffected. In this paper, we make a case of redistributing the ...
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ژورنال
عنوان ژورنال: Frequenz
سال: 2007
ISSN: 2191-6349,0016-1136
DOI: 10.1515/freq.2007.61.1-2.35