24132 search results - page 4617 / 4827 » and 2009 |
187
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IWCMC
2009
ACM
16 years 1 months ago
2009
ACM
Multi-hop relaying will play a central role in next generation wireless systems. In this paper a novel relaying strategy that uses multiple-input multiple-output (MIMO) relays in ...
182
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IWCMC
2009
ACM
16 years 1 months ago
2009
ACM
In wireless communication systems, adaptive modulation and coding (AMC) is used to improve the downlink (DL) spectral efficiency by exploiting the underlying channel condition. Ho...
165
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IWCMC
2009
ACM
16 years 1 months ago
2009
ACM
This paper proposes a dynamic trust establishment protocol that enables the nodes of an ad hoc network to establish security associations among each other in a distributed and pee...
172
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IWCMC
2009
ACM
16 years 1 months ago
2009
ACM
The IEEE 802.16/WiMAX standards has fully embraced multi-antenna technology and can, thus, deliver robust performance and high transmission rates. Nevertheless, due to its inheren...
182
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JCDL
2009
ACM
16 years 1 months ago
2009
ACM
Recent years have seen the rise of subject-themed digital libraries, such as the NSDL pathways and the Digital Library for Earth System Education (DLESE). These libraries often ne...