Performance Analysis of 802.lln MIMO OFDM Transceiver
نویسندگان
چکیده
The increasing demand on real time application to achieve high throughput, reliable wireless system and network capacity for fourth generation wireless local area networks is to combine MIMO wireless technology with OFDM. Orthogonal Frequency Division Multiplexing (OFDM), which offers reliable high bit rate wireless system with reasonable low complexity. OFDM does provide large data rates with sufficient robustness to radio channel impairments. OFDM is a combination of modulation and multiplexing and are able to maximize spectral efficiency without causing adjacent channel interference. This paper first focuses on 802.11n standard, MIMO-OFDM system. This paper further reviews different work done on implementation of MIMO-OFDM transceiver for 802.11n standard.
منابع مشابه
Performance Analysis of MIMO-OFDM by Spatial
The main aim of OFDM-MIMO systems is to combine OFDM technology with the techniques of MIMO systems. The growing demand of multimedia services and the growth of Internet related contents lead to increasing interest to high speed communications. OFDM is a type of multichannel modulation that divides a given channel into many parallel sub channels or subcarriers, so that multiple symbols are sent...
متن کاملPerformance of Turbo coded OFDM wireless link for SISO, SIMO, MISO and MIMO system
This paper compares the performance of a Turbo coded OFDM wireless link for SISO, SIMO, MISO and MIMO system with uncoded OFDM wireless link for SISO, SIMO, MISO and MIMO system in the in the presence of rayleigh fading. Turbo encoder encodes the input information bits and sends to QPSK or 16 QAM or 64 QAM modulator. Modulated symbols are mapped by STBC. Outputs of STBC are split into n streams...
متن کاملPerformance Analysis of MIMO-OFDM by Spatial Diversity with STBC4
The main aim of OFDM-MIMO systems is to combine OFDM technology with the techniques of MIMO systems. The growing demand of multimedia services and the growth of Internet related contents lead to increasing interest to high speed communications. OFDM is a type of multichannel modulation that divides a given channel into many parallel sub channels or subcarriers, so that multiple symbols are sent...
متن کاملPerformance Improvement of Mimo Ofdm Systems through Channel Estimation
A brief overview of MIMO-OFDM system design has been discussed and its key techniques are introduced. It also focuses on OFDM-based air interface, spatial channel modelling, transceiver design, channel estimation and minimizing the BER ratio by modifying the Maximum Likelihood function through channel estimation.
متن کاملDynamic User Scheduling in Non-Orthogonal Multiuser MIMO-OFDM
We propose a multiuser scheduler based on signal-to-interference-and-noise ratio (SINR) constraints using a non-orthogonal space-division multiple access (SDMA) MIMO-OFDM. To mitigate the complexity needed for computing the linear transceiver filters with a possible number of non-feasible users, we propose to preselect the optimal users using a virtual signal-to-noise ratio (vSNR). This is comp...
متن کامل