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A Novel Transmit Diversity Technique for IS-2000 Systems  

Yoon, Hyun-Goo (연세대학교 전기전자공학과 전파통신연구실)
Yook Jong-Gwan (연세대학교 전기전자공학과 전파통신연구실)
Park, Han-Kyu (연세대학교 전기전자공학과 전파통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.1B, 2002 , pp. 56-65 More about this Journal
Abstract
This paper proposes a novel transmit diversity technique, namely symbol split orthogonal transmit diversity (SS-OTD). In this technique, full path diversity and temporal diversity are achieved by combining orthogonal transmit diversity technique (OTD) technique with the symbol splitting method proposed by Meyer. Its performances is simulated for fundamental channels associated with the forward link of the IS-2000 system, and then compared with those of OTD and space-time spreading (STS). Our proposed method offers a 0.5-7.7dB performance improvement over OTD under various simulation environments and its performance is similar to STS. Moreover, compares with that of STS, the peak-to-average power ratio (PAR) of transmitted signals in SS-OTD is reduced by a maximal 1.35dB, which decreases the complexity of base station RF devices, such as power amplifiers. Thus, SS-OTD is comparable to STS in performance and superior to STS in the cost and efficiency of base station RF devices.
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  • Reference
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