Title :
A new differential space time coded OFDM system
Author :
Xiao, Zhengrong ; Zhao, Shaogang ; Wu, Weiling
Author_Institution :
Inf. Eng. Sch., Beijing Univ. of Posts & Telecommun., China
fDate :
31 May-2 June 2004
Abstract :
This paper provides a new differential space-time block code (DSTBC) coded OFDM system. The new DSTBC scheme provides a differential coding gain due to redundancy introduced in the differential encoding. Simulation results show that the new DSTBC-OFDM system can provide a better performance than traditional DSTBC coded OFDM system in frequency selective fading channels, and can improve about 1 dB in high SNR.
Keywords :
OFDM modulation; Viterbi decoding; block codes; fading channels; space-time codes; DSTBC; Viterbi decoding; coded OFDM system; differential space-time block code; frequency selective fading channel; Block codes; Channel estimation; Decoding; Delta modulation; Fading; Intrusion detection; OFDM; Receiving antennas; Space time codes; Viterbi algorithm;
Conference_Titel :
Emerging Technologies: Frontiers of Mobile and Wireless Communication, 2004. Proceedings of the IEEE 6th Circuits and Systems Symposium on
Print_ISBN :
0-7803-7938-1
DOI :
10.1109/CASSET.2004.1321953
