Performance Analysis on the Coexistence of Multiple Cognitive Radio Networks
Journal Title: EAI Endorsed Transactions on Cognitive Communications - Year 2015, Vol 1, Issue 2
Abstract
The demand for wireless services is growing on a daily basis while spectral resources to support this growth are static. Therefore, there is need for the adoption of a new spectrum sharing paradigm. Cognitive Radio (CR) is a revolutionary technology aiming to increase spectrum utilization through dynamic spectrum access, as well as mitigating interference among multiple coexisting wireless networks. In many practical scenarios, multiple CR networks may coexist in the same geographical area, and they may interfere with each other and also have to yield to the primary user (PU). In this study, we investigate how much throughput a node in a CR network can achieve in the presence of another CR network and a PU. The results of this study illustrate how the transmission probability and sensing performance affect the achievable throughput of a node in coexisting CR networks. In addition, these results may serve as guidance for the deployment of multiple CR networks.
Authors and Affiliations
Lijun Qian, Oluwaseyi Omotere, Riku Jäntti
Keywords
Related Articles
- EP ID EP45617
- DOI http://dx.doi.org/10.4108/cogcom.1.2.e1
- Views 398
- Downloads 0
A New Mechanism of Dynamic Spectrum Access Based on Restless Bandit Allocation Indices
Based on the theory of Restless Multi-Armed Bandit model, a novel mechanism of dynamic spectrum access was proposed for the problem that how to coordinate multi-user access multi-channel which were idle. Firstly, take ca...
Energy-Based Cooperative Spectrum Sensing of SC-FDMA Systems
In this paper, we propose a frequency-hopping M-ary frequency-shift keying spectrum sensing network (FH/MFSK SSN) for identifying the on/off states of the users supported by a single-carrier frequency-division multiple a...
Detecting Multi-ChannelWireless Microphone User Emulation Attacks in White Space with Noise
Cognitive radio networks (CRNs) are susceptible to primary user emulation (PUE) attacks. Conventional PUE attack detection approaches consider television broadcasting as the primary user. In this work, however, we study...
A Hardware Prototype of a Flexible Spectrum Sensing Node for Smart Sensing Networks
In this paper we present a prototype for a spectrum sensing node for a cognitive radio sensing network. Our prototype consists of a custom down-conversion front-end with an RF input frequency range from 300 MHz to 3 GHz...
Evolutionary Multiobjective Optimization for Adaptive Dataflow-based Digital Predistortion Architectures
In wireless communication systems, high-power transmitters suffer from nonlinearities due to power amplifier (PA) characteristics, I/Q imbalance, and local oscillator (LO) leakage. Digital Predistortion (DPD) is an effect...