Joint channel estimation and decoding of space-time block codes in AF MIMO relay networks

Arti MK, Mallik RK, Schober R (2012)

Publication Type: Conference contribution

Publication year: 2012

Conference Proceedings Title: 2012 International Conference on Signal Processing and Communications, SPCOM 2012

Event location: Bangalore IN

ISBN: 9781467320122

DOI: 10.1109/SPCOM.2012.6290022

Abstract

In this paper, we discuss methods of channel estimation and decoding in amplify-and-forward (AF) based multiple-input multiple-output (MIMO) relay networks. We derive three different decoders, namely decoder-I, decoder-II, and decoder-III, for orthogonal space-time block codes using pilot symbol-aided channel estimation over Rayleigh fading MIMO channels in an AF based cooperative communication system. Decoder-I is a decoupled decoder which uses estimated channel gains in decoding. The other two decoders jointly process the received pilot signals and data samples through vector derivative (decoder-II) and probability density function marginalization (decoder-III). Simulation results show that decoder-II and decoder-III have almost the same performance. However, decoder-II is computationally less complex as compared to decoder-III. We also derive an expression for the moment generating function (m.g.f.) of the received signal-to-noise ratio at the destination for decoder-I and by using this m.g.f. the analytical symbol error rate is obtained. © 2012 IEEE.

Authors with CRIS profile

Robert Schober

Involved external institutions

University of British Columbia CA Canada (CA) Indian Institute of Technology (IIT), Delhi IN India (IN)

How to cite

APA:

Arti, M.K., Mallik, R.K., & Schober, R. (2012). Joint channel estimation and decoding of space-time block codes in AF MIMO relay networks. In 2012 International Conference on Signal Processing and Communications, SPCOM 2012. Bangalore, IN.

MLA:

Arti, M. K., Ranjan K. Mallik, and Robert Schober. "Joint channel estimation and decoding of space-time block codes in AF MIMO relay networks." Proceedings of the 2012 9th International Conference on Signal Processing and Communications, SPCOM 2012, Bangalore 2012.

BibTeX: Download