reference.txt

mimoofdm系统自适应功率分配算法

Adaptive loading for MIMO/OFDM Systems

Prateek Bansal
Andrew Brzezinski

Simulator Task Division:

Andrew Brzezinski ([e-mail])

Channel Simulator (Block Fading Assumption), including Transmit Precoding and Receiver Shaping 
Performance Analysis of Adaptive Modulation applied to MIMO/OFDM Systems 
Performance Analysis of Fixed OFDM Transmission for single antenna system 
Prateek Bansal ([e-mail])

Modulator/Demodulator(IFFT/FFT) Block and Cyclic Prefix Block for OFDM Transmitter and Receiver 
Performance Analysis of MIMO/OFDM System having selection diversity at the transmitter and maximal ratio combining at the receiver 
Performace Analysis of Adaptive Modulation applied to single antenna system

Project Update:


We have completed the literature survey and we have a basic outline of the simulator structure.

(Dec 1) We have completed the single antenna OFDM system with adaptive modulation. The following blocks are part of the design: 

Adaptive Bit Allocation 
QAM Modulation (1, 2, 4, 16, 64, 256 QAM finite modulation order) 
Circular Prefix and FFT 
Channel Simulator 
Remove Prefix and IFFT 
Zero-forcing ML Decoding

(Dec 9) We have completed the MIMO OFDM system with adaptive modulation. This includes 
precoder 
shaper 
matrix channel formulation 
a fully functional variable rate variable power modulator.
Further, we have implemented selection diversity at the transmitter, and fixed OFDM for comparison purposes.


Weekly Goals:

Dec 2nd 2001: Have Implemented the Single Antenna System
Dec 9th 2001: Have Implemented the MIMO System
Dec 13th 2001: Completed Project Report


Proposed Extensions:


Analysis of Multiuser OFDM systems with single antennas. 
Analysis of Multiuser MIMO/OFDM Systems. 


References:


Jorge Campello de Souza, "Discrete Bit Loading for Multicarrier Modulation Systems", PhD Thesis. May, 1999

Kai-Kit Wong et al, "Adaptive Spatial-Subcarrier Trellis Coded MQAM and Power Optimization for OFDM Transmission", VTC2000, Page 2049-2053

Cheong Yui Wong et al, "Multiuser OFDM with Adaptive Subcarrier, Bit, and Power Allocation", IEEE Journal on Selected Areas in Communications, Vol. 17, No. 10, October 1999, Page 1747-1758.

Joonsuk Kim, John M. Cioffi, "Spatial Multiuser Access OFDM with Antenna Diversity and Power Control", VTC2000, Page 273-279

EE359 Course Reader