• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• v.9 no.2
• /
• pp.1037-1040
• /
• 2005

In this paper, we analyze the performance of high data rate wireless personal area network (HDR-WPAN) system using multiple antenna scheme, space-time block code in fading channel. Multiple antenna technique is used to improve the error performance by combining the receive signal through multiple receive antenna. Space-time block code is a space-time diversity scheme which can obtain the maximum space diversity gain and easily implements a ML receiver via a simple process. HDR-WPAN system using space-time block code obtain about 14dB diversity gaint at BER 10$^{-5}$ in multipath fading channel. From the simulation result, We confirm that HDR-WPAN system adopting space-time block code has reliable communication even low power.

• The Journal of the Acoustical Society of Korea
• /
• v.25 no.8
• /
• pp.356-361
• /
• 2006

We present the performance of differential space-time block decoders. which does not require the channel state information. We suggest the structure of the multiple blocks differential space time decoders. which does not require the channel state information, and analyze the Performances. In quasi-static flat fading channels. the Performance of multiple blocks differential detection (MD-STC) outperforms that of 2 blocks(D-STC) by 1.5dB. But in the time-selective fading channels due to Doppler frequency $(f_d)$, the performance of MD-STC degrades as the vehicular speed is greater than 200km/hr in 802.16e systems, where the data transmission rate is 144kbps.