Publication Details

Z. Lin, L. C. Tran & F. Safaei, "Order-4 orthogonal cooperative communication in Space-Time-Frequency Coded MB-OFDM UWB," in ISCIT 2012: The International Symposium on Communications and Information Technologies, 2012, pp. 920-55.


The combination of cooperative communication and Space-Time-Frequency-Codes (STFCs) has been recently proposed in the literature for Multiband OFDM Ultra-Wideband (MB-OFDM UWB) to improve the bit error performance, system capacity, data rate and wireless communications range. This paper proposes a cooperative communication design using Order-4 Orthogonal STFCs in MB-OFDM UWB systems, which is referred to as Order-4 Orthogonal Cooperative Communication Scheme (4-OCCS). It will be shown that 4-OCCS improves significantly the diversity and error performance of the MB-OFDM UWB system, compared to the conventional MB-OFDM UWB (without STFCs) as well as our Order-2 Orthogonal Cooperative Communication Scheme using Alamouti STFCs (2-OCCS) proposed previously, with the same data rate and without any increase of transmission power.



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