Radio Resource Allocation Techniques for Efficient Spectrum Access in Cognitive Radio Networks

2016 ◽  
Vol 18 (1) ◽  
pp. 824-847 ◽  
Author(s):  
Georgios I. Tsiropoulos ◽  
Octavia A. Dobre ◽  
Mohamed Hossam Ahmed ◽  
Kareem E. Baddour
Keyword(s):  
Resource Allocation ◽  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Radio Resource Allocation ◽  
Spectrum Access ◽  
Radio Resource

Probabilistic Radio Resource Allocation Over CDMA-Based Cognitive Radio Networks

2015 ◽  
Vol 64 (8) ◽  
pp. 3560-3565 ◽  
Author(s):  
Mohammad Mirtavoosi Mahyari ◽  
Arman Shojaeifard ◽  
Mohammad Shikh-Bahaei
Keyword(s):  
Resource Allocation ◽  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Radio Networks ◽  
Radio Resource Allocation ◽  
Radio Resource

scholarly journals Session based cooperation in cognitive radio networks: network level approach

2020 ◽  
Vol 9 (1) ◽  
pp. 40
Author(s):  
Sunil Ghildiyal
Keyword(s):  
Resource Allocation ◽  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Spectrum Sharing ◽  
Radio Networks ◽  
Spectrum Access ◽  
Secondary Users ◽  
Generation Spectrum ◽  
Primary Users ◽  
Present Generation

<p>The cognitive radio prototype performance is to alleviate the scarcity of spectral resources for wireless communication through intelligent sensing and quick resource allocation techniques. Secondary users (SU’s) actively obtain the spectrum access opportunity by supporting primary users (PU’s) in cognitive radio networks (CRNs). In present generation, spectrum access is endowed through cooperative communication based link-level frame-based cooperative (LLC) principle. In this SUs independently act as conveyors for PUs to achieve spectrum access opportunities. Unfortunately, this LLC approach cannot fully exploit spectrum access opportunities to enhance the throughput of CRNs and fails to motivate PUs to join the spectrum sharing processes. Therefore to overcome this con, network level cooperative (NLC) principle was used, where SUs are integrated mutually to collaborate with PUs session by session, instead of frame based cooperation for spectrum access opportunities. NLC approach has justified the challenges facing in LLC approach. In this paper we make a survey of some models that have been proposed to tackle the problem of LLC. We show the relevant aspects of each model, in order to characterize the parameters that we should take in account to achieve a spectrum access opportunity.</p>

Enhanced Dynamic Spectrum Access in Multiband Cognitive Radio Networks via Optimized Resource Allocation

2016 ◽  
Vol 15 (12) ◽  
pp. 8093-8106 ◽  
Author(s):  
Piyush Bhardwaj ◽  
Ankita Panwar ◽  
Onur Ozdemir ◽  
Engin Masazade ◽  
Irina Kasperovich ◽  
...  
Keyword(s):  
Resource Allocation ◽  
Cognitive Radio ◽  
Cognitive Radio Networks ◽  
Dynamic Spectrum Access ◽  
Radio Networks ◽  
Dynamic Spectrum ◽  
Spectrum Access
Sign in / Sign up

Export Citation Format

Share Document