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Cross layer design for orthogonal space time block coded optical MIMO systems

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2 Author(s)
Syed Ali Raza Zaidi ; NUST School of Electrical Engineering and Computer Sciences, National University of Science and Technology, Rawalpindi, Pakistan ; Maryam Hafeez

Wireless infrared and free space optic communication are very strong candidates for next generation indoor wireless networks. Infrared diffuse communication provides high speed data transmission which is more economic then traditional fiber optic systems. Moreover it provides greater security than its counter part, i.e. radio frequency wireless communication, mainly due to its confined illumination. However the infrared wireless communication is not employed due to power limitations, alignment problems and performance degradation under severe weather conditions. In such conditions MIMO based signal processing techniques derived on parallels from wireless communication can be employed to provide better performance. In this paper we present a novel design for more reliable transmission. The proposed design is base on rate 1/2 Orthogonal Coding Scheme in combination with Virtual Fragmentation. Furthermore we discuss the cross layer architecture where by channel knowledge can be exploited by upper layers in order to efficiently decode the data, hence adapting to the channel conditions.

Published in:

2008 5th IFIP International Conference on Wireless and Optical Communications Networks (WOCN '08)

Date of Conference:

5-7 May 2008