Reference : DSTBC based DF cooperative networks in the presence of timing and frequency offsets

	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Computer science
	To cite this reference:	http://hdl.handle.net/10993/14896

Title :	DSTBC based DF cooperative networks in the presence of timing and frequency offsets
Language :	English
Author, co-author :	Nasir, A.A. []
	Mehrpouyan, H. []
	Durrani, S. []
	Blostein, S.D []
	Kennedy, R.A. []
	Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Publication date :	2013
Main document title :	Signal Processing Advances in Wireless Communications (SPAWC), 2013 IEEE 14th Workshop on
Peer reviewed :	Yes
Audience :	International
Event name :	IEEE 14th Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Event date :	16-06-2013
Event organizer :	IEEE
Event place (city) :	Darmstadt
Event country :	Germany
Abstract :	[en] In decode-and-forward (DF) relaying networks, the received signal at the destination may be affected by multiple impairments such as multiple channel gains, multiple timing offsets (MTOs), and multiple carrier frequency offsets (MCFOs). This paper proposes novel optimal and sub-optimal minimum mean-square error (MMSE) receiver designs at the destination node to detect the signal in the presence of these impairments. Distributed space-time block codes (DSTBCs) are used at the relays to achieve spatial diversity. The proposed sub-optimal receiver uses the estimated values of multiple channel gains, MTOs, and MCFOs, while the optimal receiver assumes perfect knowledge of these impairments at the destination and serves as a benchmark performance measure. To achieve robustness to estimation errors, the estimates statistical properties are exploited at the destination. Simulation results show that the proposed optimal and sub-optimal MMSE compensation receivers achieve full diversity gain in the presence of channel and synchronization impairments in DSTBC based DF cooperative networks.
Target :	Researchers ; Professionals ; Students ; Others
Permalink :	http://hdl.handle.net/10993/14896
DOI :	10.1109/SPAWC.2013.6612017

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