Performance of DS Time Hopping Ultra Wideband Systems with Diversity
Konferenz: European Wireless 2006 - 12th European Wireless Conference 2006 - Enabling Technologies for Wireless Multimedia Communications
02.04.2006 - 05.04.2006 in Athens, Greece
Tagungsband: European Wireless 2006
Seiten: 6Sprache: EnglischTyp: PDF
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Autoren:
Zhao, Yuhua (Dept. of Electrical Engineering, Miami University, Oxford, OH 45056)
Efthymoglou, George P. (Dept. of Technology Education and Digital Systems, University of Piraeus, Piraeus, Greece)
Ugweje, Okechukwu C. (Dept. of Electrical and Computer Engineering, The University of Akron, Akron, OH 44325)
Inhalt:
In this paper, a direct sequence (DS) time hopping (TH) ultra wideband (UWB) communications system, denoted as DS-TH-UWB is introduced and analyzed. This is a hybrid technique combining the conventional time hoping and direct sequence techniques. The system is analyzed in terms of the signal-to-noise plus interference ratio (SNIR) and bit error rate (BER) performance. In particular, we provide analytical expressions for the SNIR and BER as a function of several system parameters. The performance of the proposed system is compared with other techniques. Furthermore, the impact of diversity on the performance is demonstrated. Numerical results indicate that the BER performance of the DS-TH-UWB system is superior to the other techniques and can be improved significantly with the use of diversity.