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A modified Alamouti-coded orthogonal frequency division multiplexing (OFDM) scheme is proposed for cooperative systems in non-selective fading environments. Even with the frequency offset between two distributed transmit antennas, the proposed scheme achieves ideal performance and full rate of Alamouti code. By switching subcarriers in the second OFDM symbol of each Alamouti-coded OFDM symbol pair after a simple-phase rotation in the first OFDM symbol, inter-carrier interference terms can be perfectly cancelled after a simple linear combining with the processing overhead of two times down-conversions and discrete Fourier transform (DFT) operations at each OFDM symbol.
References
-
-
1)
-
F. Peng ,
W.E. Ryan
.
MLSD bounds and receiver designs for clipped OFDM channels.
IEEE Trans. Wirel. Commun.
,
9 ,
3568 -
3578
-
2)
-
I. Choi ,
J.K. Kim ,
H. Lee ,
I. Lee
.
Alamouti-codes based four-antenna transmission schemes with phase feedback.
IEEE Commun. Lett.
,
10 ,
749 -
751
-
3)
-
A.J. Coulson
.
Maximum likelihood synchronization for OFDM using a pilot symbol: analysis.
IEEE J. Sel. Areas Commun.
,
12 ,
2495 -
2503
-
4)
-
S. Kim ,
H. Kim
.
Performance enhancement in future mobile satellite broadcasting services.
IEEE Commun. Mag.
,
7 ,
118 -
124
-
5)
-
Ng, F., Li, X.: `Cooperative STBC–OFDM transmissions with imperfect synchronization in time and frequency', Record of the 39th Asilomar Conf. on Signals, Systems and Computers 2005, 28 October–1 November 2005, p. 524–528.
-
6)
-
Lee, K., Williams, D.: `A space–time coded transmitter diversity technique for frequency selective fading channels', Proc. IEEE Sensor Array and Multichannel Signal Processing Workshop, 2000, p. 149–152.
-
7)
-
T.-H. Pham ,
A. Nallanathan ,
Y.-C. Liang
.
Joint channel and frequency offset estimation in distributed MIMO flat-fading channels.
IEEE Trans. Wirel. Commun.
,
648 -
656
-
8)
-
J. Kim
.
Interference suppression for high data rate STBC/SFBC with 1-bit feedback.
IEEE Commun. Lett.
,
1 ,
13 -
15
-
9)
-
J. Lee ,
H.-L. Lou ,
D. Toumpakaris ,
J.M. Cioffi
.
SNR analysis of OFDM systems in the presence of carrier frequency offset for fading channels.
IEEE Trans. Wirel. Commun.
,
12 ,
3360 -
3364
-
10)
-
O.-S. Shin ,
A. Chan ,
T.H. Kung ,
V. Tarokh
.
Design of an OFDM cooperative space–time diversity system.
IEEE Trans. Veh. Technol.
,
4 ,
2203 -
2215
-
11)
-
P. Dharmawansa ,
N. Rajatheva ,
H. Minn
.
An exact error probability analysis of OFDM systems with frequency offset.
IEEE Trans. Commun.
,
1 ,
26 -
31
-
12)
-
Z. Li ,
X.G. Xia
.
An Alamouti coded OFDM transmission for cooperative systems robust to both timing errors and frequency offsets.
IEEE Trans. Wirel. Commun.
,
5 ,
1839 -
1844
-
13)
-
Kim, H., Kang, K., Ahn, D.: `Distributed space–time coded transmission for mobile satellite communication using ancillary terrestrial component', IEEE ICC 2007, June 2007, Glasgow, UK.
-
14)
-
J. Kim ,
R.W. Heath ,
E.J. Powers
.
Receiver designs for Alamouti coded OFDM systems in fast fading channels.
IEEE Trans. Wirel. Commun.
,
2 ,
550 -
559
-
15)
-
L. Wan ,
V.K. Dubey
.
BER performance of OFDM system over frequency nonselective fast ricean fading channels.
IEEE Commun. Lett.
,
1 ,
19 -
21
-
16)
-
H. Wang ,
X.-G. Xia
.
Distributed space–frequency codes for cooperative communication systems with multiple carrier frequency offfsets.
IEEE Trans. Wirel. Commun.
,
2 ,
1045 -
1055
-
17)
-
D.N. Dào ,
C. Tellambura
.
Intercarrier interference self-cancellation space–frequency codes for MIMO–OFDM.
IEEE Trans. Veh. Technol.
,
5 ,
1729 -
1738
-
18)
-
G. Liu ,
J.H. Ge ,
Y. Guo
.
Time and frequency offset estimation for distributed multiple-input multiple-output orthogonal frequency division multiplexing systems.
IET Commun.
,
6 ,
708 -
715
-
19)
-
D. Ahn ,
S. Kim ,
H. Kim ,
D. Park
.
A cooperative transmit diversity scheme for mobile satellite broadcasting systems.
Int. J. Satell. Commun. Syst. Netw.
,
352 -
368
-
20)
-
Zhong Mingqian, T., Premkumar, A.B., Madhukumar, A.S.: `Performance investigation of STBC–OFDM systems with frequency offset and a semi-blind approach for the correction', IEEE Vehicular Technology Conf., May 2004, 4, p. 1836–1839.
-
21)
-
X. Guo ,
X.-G. Xia
.
A distributed space–time coding in asynchronous wireless relay networks.
IEEE Trans. Wirel. Commun.
,
1812 -
1816
-
22)
-
V. Bhatia ,
B. Mulgrew ,
D.D. Falconer
.
Non-parametric maximum-likelihood channel estimator and detector for OFDM in presence of interference.
IET Commun.
,
4 ,
647 -
654
-
23)
-
J. Akhtar ,
D. Gesbert
.
Extending orthogonal block codes with partial feedback.
IEEE Trans. Wirel. Commun.
,
6 ,
1959 -
1962
-
24)
-
Litis, R.A., Mirzaei, S., Kastner, R.: `Carrier offset and channel estimation for cooperative MIMO sensor networks', IEEE Global Telecommunications Conf., December 2006, p. 1–5.
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-com.2011.0131
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