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Listen and Talk Full-duplex Cognitive Radio Networks

:	Yun Liao, Lingyang Song, Zhu Han
:	Listen and Talk Full-duplex Cognitive Radio Networks
:	Springer-Verlag
:	9783319339795
:	1
:	CHF 47.70
:

:	Elektronik, Elektrotechnik, Nachrichtentechnik
:	English

:	107
:	Wasserzeichen/DRM
:	PC/MAC/eReader/Tablet
:	PDF

This brief focuses on the use of full-duplex radio in cognitive radio networks, presenting a novel spectrum sharing protocol that allows the secondary users to simultaneously sense and access the vacant spectrum. This protocol, called 'Listen-and-talk' (LAT), is evaluated by both mathematical analysis and computer simulations in comparison with other existing protocols, including the listen-before-talk protocol. In addition to LAT-based signal processing and resource allocation, the brief discusses techniques such as spectrum sensing and dynamic spectrum access.

The brief proposes LAT as a suitable access scheme for cognitive radio networks, which can support the quality-of-service requirements of these high priority applications. Fundamental theories and key techniques of cognitive radio networks are also covered.

div>Listen and Talk: Full-duplex Cognitive Radio Networks is designed for researchers, developers, and professionals involved in cognitive radio networks. Advanced-level students studying signal processing or simulations will also find the content helpful since it moves beyond traditional cognitive radio networks into future applications for the technology.

	Preface	6
	Contents	8
	1 Introduction	10
	1.1 Overview of Full-Duplex Radio	10
	1.1.1 Self-Interference Cancelation	11
	1.1.1.1 Propagation-Domain Self-Interference Suppression	11
	1.1.1.2 Analog-Circuit-Domain Self-Interference Cancellation	12
	1.1.1.3 Digital-Domain Self-Interference Cancellation	13
	1.1.2 State-of-Art Development and Applications of Full-Duplex Radio	14
	1.2 Cognitive Radio Preliminaries	14
	1.2.1 Spectrum Sensing	15
	1.2.1.1 Energy Detector	16
	1.2.1.2 Feature Detector	16
	1.2.1.3 Matched Filter Detector	17
	1.2.2 Dynamic Spectrum Allocation and Spectrum Sharing	17
	1.2.3 Listen-Before-Talk Protocol	19
	1.3 CSMA Basics	20
	1.3.1 Basic CSMA Mechanism	20
	1.3.1.1 CSMA/CD and CSMA/CA	21
	1.3.2 Wireless CSMA/CD	22
	1.4 Organization of the Book	23
	References	24
	2 Full-Duplex Cognitive Radio Networks	27
	2.1 System Model	28
	2.1.1 System Model	29
	2.1.2 Simultaneous Sensing and Transmission	30
	2.2 Listen-and-Talk Protocol	32
	2.2.1 Protocol Description	32
	2.2.1.1 Energy Detection	33
	2.2.2 Key Parameter Design	34
	2.2.3 Performance Analysis	42
	2.2.3.1 Spectrum Utilization Efficiency and Secondary Throughput	42
	2.2.3.2 Power-Throughput Tradeoff	42
	2.2.3.3 Comparison with the Listen-Before-Talk Protocol	46
	2.2.3.4 Results	52
	2.3 Conclusion	56
	References	57
	3 Extensions of the LAT Protocol	59
	3.1 Extension 1: Cooperative Spectrum Sensing	59
	3.1.1 Local Spectrum Sensing	60
	3.1.2 Data Report and Data Fusion	61
	3.1.3 Analysis of CSS in the LAT CRN	62
	3.1.3.1 Local Sensing Error	62
	3.1.3.2 Collision Ratio and Spectrum Waste Ratio	63
	3.1.3.3 Local Sensing Thresholds	64
	3.1.3.4 Secondary Throughput	65
	3.1.4 Comparison with Other Protocols	65
	3.1.4.1 Cooperative Spectrum Sensing in LBT Protocol	65
	3.1.4.2 Results	66
	3.2 Extension 2: Dynamic Spectrum Access	68
	3.2.1 Distributed Dynamic Spectrum Access	68
	3.2.1.1 System Model	68
	3.2.1.2 FD-DSA Protocol	69
	3.2.1.3 Performance Analysis	70
	3.2.1.4 Comparison with DSA in HD-CRNs	74
	3.2.1.5 Results	75
	3.2.2 Centralized Dynamic Spectrum Access	77
	3.2.2.1 System Model	78
	3.2.2.2 Joint Spectrum Access and Power Allocation	79
	3.2.2.3 Results	85
	3.3 Conclusion	88
	References	89
	4 Full-Duplex WiFi	90
	4.1 System Model	91
	4.2 Cross-Layer Protocol Design	91
	4.2.1 Full-Duplex Carrier Sensing	91
	4.2.2 FD-WiFi MAC Protocol	92
	4.3 Performance Analysis	94
	4.3.1 Imperfect Carrier Sensing	94
	4.3.2 Spectrum Utilization Efficiency and Throughput	95
	4.3.2.1 Collision Probability	95
	4.3.2.2 Throughput	97
	4.3.3 Comparison with the Basic CSMA/CA Mechanism	98
	4.4 Simulation Results	99
	4.5 Conclusions	101
	References	101
	5 Conclusions and Future Works	102
	5.1 Conclusions	102
	5.2 Research Challenges and Future Works	103
	5.2.1 Signal Processing Techniques	103
	5.2.1.1 Spectrum Sensing	103
	5.2.1.2 Multi-Antenna Techniques	104
	5.2.2 Dynamic Spectrum Access and Resource Management	104
	5.2.3 Coexistence of Multiple Systems	105
	5.3 Applications and Future Research Topics	106
	5.3.1 FD MIMO Networks	106
	5.3.2 Cooperative Networks	106
	5.3.3 Heterogeneous Networks	107
	References	107