Performance comparison of differential space-time signalling schemes for OFDM systems
Subjectsantennas and propagation
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AbstractDifferential transmit diversity is an attractive alternative to its coherent counterpart, especially for multiple antenna systems where channel estimation is more difficult to attain compared to that of single antenna systems. In this paper we compare two different types of differential transmit diversity techniques for OFDM based transmissions. The first technique uses differential space-time block codes (DSTBC) from orthogonal designs and the second uses the differential cyclic delay diversity (DCDD). The results compare the bit error performance for several transmit antenna configurations. The results show that DCDD offers a very close performance to that of DSTBC, with the advantage of a simplified receiver structure.
CitationHashim, W., Said, F., Allen, B., Aghvami, A. and Ismail, A. (2005) "Performance comparison of differential space-time signalling schemes for OFDM systems," Networks, 2005. Jointly held with the 2005 IEEE 7th Malaysia International Conference on Communication., 2005 13th IEEE International Conference on , vol.2, no., pp. 6 pp., 16-18 Nov. 2005
TypeConference papers, meetings and proceedings
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