Semester/Master Thesis

Channel Estimation for the IEEE 802.11n WLAN Systems


Multiple Input Multiple Output (MIMO) communication techniques are able to improve the system performance considerably. The IEEE standardization task group has proposed a standard, i.e. IEEE 802.11n which adds the MIMO capability into the existing wireless systems based on Orthogonal frequency-division multiplexing (OFDM). The IEEE 802.11n will be able to increase the data rate up to 600 Mbps. This standard supports some features including transmit beamforming, space time block coding (STBC) and spatial multiplexing. The channel estimation is essential for realizing high performance MIMO systems and it becomes more complicated by increasing the number of spatial streams.

ae3.bmp

In this work we study the channel estimation techniques in MIMO-OFDM systems. The main concern is to study the channel estimation techniques which are proposed in the IEEE 802.11n standard and to evaluate their performance by simulation.

Subject area Channel estimation, IEEE 802.11n WLAN, MIMO, OFDM
Type of work 70% Theory, 30% Software
Student Salih Kaplan
Supervisors Dr. Azadeh Ettefagh, Dr. Marc Kuhn
Professor Prof. Dr. Armin Wittneben