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Performance analysis of IEEE 802.11n under different STBC rates using 64-QAM

Research output: Contribution in Book/Report/ProceedingsPaper

Published

  • Anastasios Gravalos
  • Marios Hadjinicolaou
  • Qiang Ni
Publication date02/2007
Host publicationWireless Pervasive Computing, 2007. ISWPC '07. 2nd International Symposium on
PublisherIEEE
ISBN (Electronic)1-4244-0523-8
ISBN (Print)1-4244-0523-8
Original languageEnglish

Conference

Conference2007 2nd International Symposium on Wireless Pervasive Computing
CountryUnited Kingdom
CitySan Juan, PR, USA
Period5/02/077/02/07

Conference

Conference2007 2nd International Symposium on Wireless Pervasive Computing
CountryUnited Kingdom
CitySan Juan, PR, USA
Period5/02/077/02/07

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.