Title :
Derivations of decoder and beamforming vector for amplify—and—forward relays based on the Cauchy-Schwartz inequality
Author :
Kim, Seokkwon ; Kim, Joontae ; Choi, Won-Chul ; Park, Dong-Jo
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
For multiple amplify-and-forward (AF) relays, optimal decoder and beamforming vector have been presented [3], [4]. The derivations of these optimal ones have been based on the generalized eigenvalue problem. In this work, we show the derivations using the Cauchy-Schwartz inequality. Moreover, the intimate relation between decoder and beamforming vector is analyzed.
Keywords :
decoding; diversity reception; eigenvalues and eigenfunctions; vectors; Cauchy-Schwartz inequality; amplify-forward relay; beamforming vector; decoder; eigenvalue problem; AWGN; Array signal processing; Computer science; Decoding; Diversity methods; Eigenvalues and eigenfunctions; Radio communication; Relays; Signal to noise ratio; Telecommunication network reliability;
Conference_Titel :
Communications and Information Technology, 2009. ISCIT 2009. 9th International Symposium on
Conference_Location :
Icheon
Print_ISBN :
978-1-4244-4521-9
Electronic_ISBN :
978-1-4244-4522-6
DOI :
10.1109/ISCIT.2009.5341194
