268 search results - page 48 / 54 » Probability Distributions for Channel Utilisation |
CORR
2010
Springer
14 years 8 months ago
2010
Springer
The previous link adaptation algorithms on ofdm based systems use equal modulation order for all sub carrier index within a block. For multimedia transmission using ofdm as the mo...
CORR
2010
Springer
14 years 10 months ago
2010
Springer
Abstract--In cognitive radio (CR) networks with multipleinput multiple-output (MIMO) links, secondary users (SUs) can exploit "spectrum holes" in the space domain to acce...
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JSAC
2008
14 years 10 months ago
2008
Abstract--The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resource ...
WCNC
2008
IEEE
15 years 4 months ago
2008
IEEE
—The concept of cooperative retransmission in wireless networks has attracted considerable research attention. The basic idea is that when a receiver cannot decode a frame, the r...
MOBIHOC
2006
ACM
15 years 10 months ago
2006
ACM
This paper addresses the problem of optimizing the packet transmission schedule in an ad hoc network with end-toend delay constraints. The emphasis is to determine the proper rela...