Title :
A design of code-aided channel estimation in two-way relay networks
Author :
Ping-Chung Wang ; Hua-Lung Tsai ; Mao-Chao Lin
Author_Institution :
Inst. of Comm. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
In this paper, the channel estimation problem at the relay node in TWRN is investigated. We propose a turbo receiver at the relay where it jointly combines a nonbinary decoder and an EM estimator. By passing soft value between the decoder and estimator in an iterative manner, our approach outperforms the method of separate decoding and estimation in terms of mean square error (MSE) and bit error rates (BER).
Keywords :
binary codes; channel coding; channel estimation; error statistics; iterative decoding; mean square error methods; network coding; radio receivers; relay networks (telecommunication); turbo codes; wireless channels; BER; EM estimator; MSE; TWRN; bit error rate; code-aided channel estimation; iterative estimator; mean square error; nonbinary decoder; turbo receiver; two-way relay network; Bit error rate; Channel estimation; Decoding; Estimation; Network coding; Receivers; Relays;
Conference_Titel :
Information Theory and its Applications (ISITA), 2012 International Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4673-2521-9
