Performance of Cooperative Spectrum Sensing System with Multipath Fading Reporting Channel
Journal Title: IOSR Journal of Electronics and Communication Engineering(IOSR-JECE) - Year 2018, Vol 13, Issue 3
Abstract
The detection of the primary user (PU) signal, or what is called the spectrum sensing, represents a serious challenge for releasing reliable cognitive communication systems. Cooperative spectrum sensing can be employed in cognitive radio networks to minimize the uncertainty in the PU detection due to transmission imperfections such as: noise, fading and shadow. Cooperative spectrum sensing can be considered as three-step process. In the first step, each secondary user (SU) performs a local detection followed by decision making independently. In the second step, all SUs forward their local decisions to a network fusion center (NFC). Third, based on the received local decisions the final decision about the PU existence is made at the NFC. In this paper, theoretical analyses for a simple cooperative spectrum sensing system with a reporting channel corrupted by both additive white Gaussian noise (AWGN) and multipath fading are presented. The error performance of the reporting channel is investigated using a discrete time channel model with a combined channel impulse response (CCIR). In the CCIR, the effect of the transmitting filter, receiving filter, and the power delay profile of the physical channel are considered to derive the composite channel impulse response. The overall probabilities of false alarm and miss detection at the NFC with optimum receiver are derived. The impacts of signal-to-noise ratio (SNR) of the sensing channel, the SNR of the reporting channel, the detection threshold, and the channel length on the cognitive radio performance are studied.
Authors and Affiliations
Ali Alqatawneh
Keywords
Related Articles
- EP ID EP439130
- DOI 10.9790/2834-1303021321.
- Views 121
- Downloads 0
Importance of Electronics in Food Industry
Food industry is growing fast in this era, still this is lagging behind in adopting new technology than in other industries. Food industry is dependent upon manual handling, in a wide range of activities. That is largely...
Design Of High Speed Data Transmission Systems Using Cooperative Diversity Wireless Networks.
Cooperative Diversity (CD) is a method in which different radio terminals deliver to each other for developing the total network channel capacity. We propose a high speed data transmission using efficient queuing system...
Steering of Circular patch antenna in RFID Application towards Positioning, Navigation, and Location Based Services (PNLBS)
This paper presents optimization and explanations of the main features of the latest RFID technology which have rarely or unclearly been presented for example, the longest reading range of RFID systems, the smallest tag...
Compliance Level of Base Transmission Stations with National Environmental Standards for Telecommunications and Broadcast Facilities in Calabar Metropolis, Southern Nigeria
The low rate of compliance with environmental standards in telecommunication and broadcast facilities in Calabar is linked to the low-level of awareness among residents in the study location as well as lowlevel complianc...
Thermoelectric Properties of Semiconducting materials
Thermoelectric is a science and technology associated with electric converters, that is the generation of electrical power using the Seeback effect and refrigeration using the Peltier effect.Thermoelectric generators are...