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|Title:||Performance analysis of IEEE 802.11n under different STBC rates using 64-QAM|
|Keywords:||MIMO; OFDM; STBC; WLAN; 802.11n|
|Citation:||ISWPC '07. 2nd International Symposium on Wireless Pervasive Computing. San Juan, 5-7 Feb 2007.|
|Abstract:||The main focus of current research and development for the next-generation wireless local area network (WLAN) communication systems is to enhance the link throughput and channel capacity. In this paper, the performance analysis of the ongoing next-generation WLAN standard, IEEE 802.11n high throughput WLAN PHY layer is presented. The design criteria is based on a 4times4 MIMO-OFDM scheme using 64-QAM (quadrature amplitude modulation) technique under Rayleigh frequency-selective fading and flat fading channels. Simulation results show that a significant performance gain, 4-7 dB, depending on the channel selection, can be achieved when 1/2 space-time block code (STBC) rate is applied with respect to bit-error-rate (BER). Furthermore, performance gain of 7 dB is achieved when the 4times4 system using 1/2 STBC is compared with a 2times2 system using STBC code rate 1.|
|Appears in Collections:||Electronic and Computer Engineering|
Dept of Electronic and Computer Engineering Research Papers
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