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Analysis of Channel Coding in Fading Channels for MIMO Systems

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International Journal of Computer Applications
© 2011 by IJCA Journal
Number 4 - Article 2
Year of Publication: 2011
Authors:
Umakanta Parida
Sunil Kumar
Omkar Singh
10.5120/3291-4487

Umakanta Parida, Sunil Kumar and Omkar Singh. Article: Analysis of Channel Coding in Fading Channels for MIMO Systems. International Journal of Computer Applications 27(4):8-12, August 2011. Full text available. BibTeX

@article{key:article,
	author = {Umakanta Parida and Sunil Kumar and Omkar Singh},
	title = {Article: Analysis of Channel Coding in Fading Channels for MIMO Systems},
	journal = {International Journal of Computer Applications},
	year = {2011},
	volume = {27},
	number = {4},
	pages = {8-12},
	month = {August},
	note = {Full text available}
}

Abstract

Wireless communication systems are being designed to integrate features that include high data rates as well as high quality of service in the existing communication framework. For this an orthogonal space-time block code (OSTBC) technique improves error performance of synchronous data links without sacrificing data rate or requiring more bandwidth. Trellis coded modulation (TCM) enables efficient transmission scheme and to achieve high coding gain by integrating coding and modulation. In this work an OSTBC concatenated with TCM is implemented for information transmission over different antenna configurations, from Single-Input Single-Output (SISO) to Multi-Input Multi-Output (MIMO) channels. The channel used is a quasi-static Rayleigh fading channel with additive white Gaussian noise (AWGN). The proposed model takes the advantages of the concatenation scheme: the spatial diversity gain offered by OSTBC and the coding gain offered by TCM. Using MATLAB Simulink the system performance is compared with using only TCM or OSTBC and TCM concatenated with OSTBC. Significant performance improvement of the system is achieved using this scheme. The proposed scheme achieved full transmits diversity and coding gain of more than 2dB without using interleavers/deinterleavers. It is observed that performance of MIMO system is better than SISO or MISO (Multi-Input Single-Output) system.

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