Effective Capacity and Interference Analysis in Multiband Dynamic Spectrum Sensing
نویسندگان
چکیده
منابع مشابه
Effective Capacity and Interference Analysis in Multiband Dynamic Spectrum Sensing
In this paper, the performance of multichannel transmission in cognitive radio is studied. Both constraints and interference limitations are considered. The activities of the primary users (PU)s are initially detected by cognitive users (CU)s who perform sensing process over multiple channels. They transmit in a single channel at variable power and rates depending on the channel sensing decisio...
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Multiband spectrum access presents the next generation of cognitive radio networks (CRNs), where multiple bands are sensed and accessed to enhance the network’s throughput, improve spectrum’s maintenance, and reduce handoff frequency and data transmission interruptions due to the activities of the primary users. In this paper, we discuss the challenges and limitations of the major multiband spe...
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This paper describes a smart radio network that can facilitate communication of radios operating under congested conditions in the 2.4 GHz unlicensed band. The network detects legacy systems spectrally, temporally, and spatially, and implements a novel avoidance technique to reduce or remove interference with the legacy systems. The system was designed by a team of students from Carnegie Mellon...
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Conventional fixed spectrum allocation results in a large part of frequency band remaining underutilized. Channels that are dedicated to licensed (primary) users are out of reach of unlicensed users, while the licensed users do not occupy the channel completely, at all times. Cognitive Radio is an attractive concept and solution, capable of addressing this issue. This paper investigates a stati...
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Cognitive radio (CR) network is an excellent solution to the spectrum scarcity problem. Cooperative spectrum sensing (CSS) has been widely used to precisely detect of primary user (PU) signals. The trustworthiness of the CSS is vulnerable to spectrum sensing data falsification (SSDF) attack. In an SSDF attack, some malicious users intentionally report wrong sensing results to cheat the fusion c...
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ژورنال
عنوان ژورنال: Communications and Network
سال: 2013
ISSN: 1949-2421,1947-3826
DOI: 10.4236/cn.2013.52011