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Advanced Sensing Techniques for Cognitive Radio

Part of the SpringerBriefs in Electrical and Computer Engineering Book Series

DOI: 10.1007/978-3-319-42784-3

ISBN: 978-3-319-42783-6

Publisher: Springer International Publishing - Springer Journals

Sep 17, 2016

Available

Introduction

Zhao, Guodong; Zhang, Wei; Li, Shaoqian

Pages: 1 –9

[In the past decades, the wireless communications experience a fast growth, where the demand of the wireless data grows dramatically. On the other hand, the spectrum resource is limited, which results in spectrum shortage for future wireless devices and services. This is also one of the main...
Available

Region-Based Spectrum Sensing

Zhao, Guodong; Zhang, Wei; Li, Shaoqian

Pages: 11 –34

[In cognitive radio systems, spectrum sensing is critical since it determines which kind of spectrum sharing schemes can be used. For example, in cognitive small cell networks, a large number of small cells with short transmission range can share the same spectrum band with a macro cell. To avoid...
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Jamming-Based Probing for Spectrum Sensing

Zhao, Guodong; Zhang, Wei; Li, Shaoqian

Pages: 35 –49

[In cognitive radio (CR), unlicensed users are able to access the frequency band that belong to primary users as long as they do not interfere with the primary users [1–5]. Thus spectrum sensing that finds spectrum opportunities in primary networks is critical to enable CR users to work on a...
Available

Relay-Based Probing for Spectrum Sensing

Zhao, Guodong; Zhang, Wei; Li, Shaoqian

Pages: 51 –74

[In spectrum sharing, the cross-channel gain from the cognitive transmitter (CT) to the primary receiver (PR) significantly affects the cognitive capacity [1, 2]. When the cross-channel gain is available, the CT can precisely control its interference to the PR and achieve significant cognitive...
Available

Conclusions

Zhao, Guodong; Zhang, Wei; Li, Shaoqian

Pages: 75 –76

[Cognitive radio is regarded as one of the most promising techniques for future wireless communication systems since it can effectively enhance the spectrum utilization efficiency. To enable the coexistence of the primary and cognitive users, spectrum sensing needs to acquire the information...

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