Timing and carrier synchronization in wireless communication systems: a survey and classification of research in the last 5 years

EURASIP Journal on Wireless Communications and Networking

Table 15 Summary of synchronization research in cognitive radio-based communication systems

Article	SC/MC	Channel model	CSI Req.	CE	Blind/pilot	Est/Comp	TO/CFO	Bound	PUs	Comments
[312]	SC	Freq. flat	No	No	N/A	Comp	Both	N/A	1	OSTBC MIMO
[306]	SC	AWGN	N/A	N/A	Blind	Comp	CFO	No	>1	SCO
[307]	SC	Freq. flat	No	No	Blind	Both	CFO	No	1
[304]	MC	Freq. sel.	Yes	No	N/A	Est	CFO	N/A	1
[308]	MC	Freq. sel.	No	No	Pilot	Both	CFO	No	1
[313]	MC	Freq. sel.	No	No	Pilot	Both	Both	No	1
[314]	MC	Freq. sel.	No	No	N/A	Comp	Both	No	1
[315]	MC	Freq. sel.	No	No	N/A	Comp	Both	No	1
[309]	MC	Freq. sel.	No	No	Pilot	Both	CFO	Yes	1
[310]	MC	Freq. sel.	No	Yes	Pilot	Est	CFO	Yes	>1
[311]	MC	AWGN	N/A	N/A	Pilot	Est	CFO	No	1	TS design
[305]	MC	Freq. sel.	No	No	Pilot	Both	CFO	No	1	SDR implementation
[316]	MC	Freq. sel.	No	No	Blind	Both	Both	No	1