© The Institution of Engineering and Technology
A novel combining scheme based on the Dempster-Shafer theory (DST) is presented. The proposed Dempster-Shafer combining (DSC) uniquely assigns ‘mass’ to a set consisting of the adjacent constellation points instead of probability to characterise uncertainties in decision-making, and then transfers the masses to the corresponding ‘belief interval’. Taking advantage of multiple information sources, more reliable decision statistics can be achieved by reducing the belief interval. It is beneficial to initially assume that the transmitted signal is included in a set containing diverse decision candidates, because it lacks convincing evidence to make an unambiguous decision directly. Uncertainties processing of the proposed DSC makes it possible for DSC to outperform the conventional maximal-ratio combining.
References
-
-
1)
-
G. Shafer
.
(1976)
A mathematical theory of evidence.
-
2)
-
Sentz, K., Ferson, S.: `Combination of evidence in Dempster-Shafer theory', Report No. SAND2002, , vol. 835.
-
3)
-
Kumagai, T., Mizoguchi, M., Onizawa, T., Takanashi, H., Morikura, M.: `A maximal ratio combining frequency diversity ARQ scheme for OFDM signals', 9thIEEE Int. Symp. on Personal, Indoor and Mobile Radio Communications, 1998, Boston, MA, USA, 2, p. 528–532.
-
4)
-
A. Goldsmith
.
(2005)
Wireless communications.
-
5)
-
S. Challa ,
D. Koks
.
Bayesian and Dempster-Shafer fusion.
Sadhana
,
2 ,
145 -
174
-
6)
-
H. Shin ,
J. Song
.
MRC analysis of cooperative diversity with fixed-gain relays in Nakagami-m fading channels.
IEEE Trans. Wirel. Commun.
,
6 ,
2069 -
2074
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2010.3518
Related content
content/journals/10.1049/el.2010.3518
pub_keyword,iet_inspecKeyword,pub_concept
6
6