Spectrum Utilization Efficiency of Cognitive Radio Systems With Limited Sampling Capability
Document Type
Article
Publication Date
3-14-2013
Identifier/URL
40313058 (Pure); 84876017734 (QABO)
Abstract
In cognitive radio systems, the available frequency bands are usually non-contiguous, which may cause impact on the spectrum utilization efficiency (SUE).When the receiver has a limited sampling capability, the aliasing phenomenon may cause interference among the signals at different frequency points, thus causing the loss of channel capacity. Information theoretic analysis is carried out to quantify the impact of spectrum non-contiguity on the channel capacity by analyzing the SUE. Beginning from the single sampler case, the analysis is also extended to the general case of sampler arrays. Numerical results are provided to answer several important questions on the impact of spectrum non-contiguity.
Repository Citation
Li, H.,
Dehnie, S.,
Chakravarthy, V.,
Wu, Z.,
Yao Ma, M.,
& Walter, D.
(2013). Spectrum Utilization Efficiency of Cognitive Radio Systems With Limited Sampling Capability. 2012 IEEE International Symposium on Dynamic Spectrum Access Networks, DYSPAN 2012, 68-76.
https://corescholar.libraries.wright.edu/ee/221
DOI
10.1109/DYSPAN.2012.6478117
