The Influence of Noise Uncertainty and SNR Wall on the Performance of Hybrid Sensing Method
Journal Title: EAI Endorsed Transactions on Cognitive Communications - Year 2017, Vol 3, Issue 12
Abstract
The paper discusses the hybrid sensing method and presents the hybrid detector (HD) which improves the sensing performance. The proposed HD takes advantage of the energy detection (ED) and a method based on the Covariance Absolute Value (CAV) or Cyclic Autocorrelation Function (CAF). The paper characterizes the limitations of the use of ED resulting from the uncertainty of spectral density of noise power estimation known as ‘SNR Wall’. The paper describes the system model and presents the simulation results for OFDM signal (Orthogonal Frequency Division Multiplexing) of WiMAX system. The simulation results refer to the ideal case of an environment with well-known parameters and for an environment with the uncertainty of spectral density of noise power estimation, as it has been considered in the literature so far.
Authors and Affiliations
M. Kustra, K. Kosmowski, M. Suchanski
Keywords
Related Articles
- EP ID EP45671
- DOI http://dx.doi.org/10.4108/eai.13-12-2017.153474
- Views 274
- Downloads 0
WiFi Localization Based on IEEE 802.11 RTS/CTS Mechanism
Location Based Services are providing one of the fastest growing market segments today. While the most common technique for location determination is GPS, several alternative approaches have been proposed for Wi-Fi envir...
Receiving more than data - a signal model, theory and implementation of a cognitive IEEE 802.15.4 receiver
Standard medium access schemes sense the channel immediately prior transmission, but are blind during the transmission. Therefore, standard transceivers have limited cognitive capabilities which are important for operati...
Scenarios and business models for mobile network operators utilizing the hybrid use concept of the UHF broadcasting spectrum
This paper explores and presents scenarios and business models for mobile network operators (MNOs) in the novel hybrid use spectrum sharing concept of the Ultra High Frequency broadcasting spectrum (470-790 MHz) used for...
3GPP Spectrum Access Evolution Towards 5G
The ever-increasing needs for more spectrum resources, and the emerging new Radio Access Technologies under the 5G umbrella add to the complexity of the Spectrum Toolbox in mobile networks landscape. This article covers...
Towards Implantable Body Sensor Networks - Performance of MICS Band Radio Communication in Animal Tissue
Reliable wireless communication inside the human body is crucial for the design of implantable body sensor networks. The tissues in human body are heterogeneous and have different conductivity and permittivity, which mak...