Capacity considerations for uncoordinated communication in geographical spectrum holes
نویسندگان
چکیده
منابع مشابه
Capacity considerations for uncoordinated communication in geographical spectrum holes
Cognitive radio is a new concept of reusing licensed spectrum in an unlicensed manner. The motivation for cognitive radio is various measurements of spectrum utilization, that generally show unused resources in frequency, time and space. These ”spectrum holes” could be exploited by cognitive radios. Some studies suggest that the spectrum is extremely underutilized, and that these spectrum holes...
متن کاملInvited Paper Capacity Considerations for Uncoordinated Communication in Geographical Spectrum Holes
Cognitive radio is a new concept of reusing licensed spectrum in an unlicensed manner. The motivation for cognitive radio is various measurements of spectrum utilization, that generally show unused resources in frequency, time and space. These ”spectrum holes” could be exploited by cognitive radios. Some studies suggest that the spectrum is extremely underutilized, and that these spectrum holes...
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Uncoordinated spread spectrum (USS) protocols have been proposed for anti-jamming communication in wireless settings without shared secrets. The existing USS protocols assume that fragments of hundreds of bits can be transmitted on different channels in order to identify fragments that belong to the same message. However, such long transmissions are susceptible to reactive jamming. To address t...
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This paper summarizes recent contributions on the transmission capacity of ad hoc networks. Although it is notoriously difficult to derive general end-to-end capacity results for ad hoc networks, the transmission capacity framework allows for quantification of achievable single-hop rates by focusing on a simplified physical/MAC-layer model. By using stochastic geometry to quantify the multi-use...
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0 0 0 Abstract-The information theoretic capacity of frequency-hop spread-spectrum multiple-access communication is considered. In order to account for independent encoding and decoding and private (to the sender and receiver) hopping patterns an interference channel model is adopted with K sender-receiver pairs with the ith receiver only interested in the message transmitted by the ith sender....
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ژورنال
عنوان ژورنال: Physical Communication
سال: 2009
ISSN: 1874-4907
DOI: 10.1016/j.phycom.2009.03.002