Project Title : Physically Motivated Wideband Channel Characterization

In this project I am involved in more than one task. The PI of the project is Dr. Asrar Sheikh. The current task is related to building a hardware channel simulator with a team led by Dr. Wajih Abu Al-Saud and with Dr. Azzedine as a member.

Current Task: Building a Hardware Channel Emulator.

The objective is to implement a hardware channel simulator (emulator) using the statistical models developed in the project.  Hardware channel simulators (emulator) are advantageous for testing and performance analysis. They can also be used to test base-band transmitters and receivers on their performance. The emulator takes in the output signal from the transmitter and passes it through the desired channel model before feeding the receiver with its output signal.

Principle Parameters

Parameter value
Channels 2
Carrier Frequency (RF) ?
Bandwidth  
Dynamic Range  
Sampling  
Quantization  
Distortion  
Storage Capacity hard disk ....etc
   
   
   

Working Steps:

Important Notes:

Literature Survey and Research Classifications

[Esl06] and [Esl09] demonstrated the channel emulators built around frequency domain concepts are more computationally efficient than the widely used time domain FIR representation.

Some channel emulators were designed for MIMO systems as in [Esl06] & [Esl09].

[Bri01]  presented a complete hardware and software solution for channel emulation. The researchers developed and excellent graphical representation software to control the hardware.

 

References

[Bri01] C. Briso-Rodriguez and J. I. Alonso-Montes, "Multipath hardware and software mobile channel simulator," presented at Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd, 2001.
[Esl06] H. Eslami and A. M. Eltawil, "A Real-Time Wireless Channel Emulator for MIMO Systems," presented at Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th, 2006.
[Esl09] H. Eslami, S. V. Tran, and A. M. Eltawil, "Design and Implementation of a Scalable Channel Emulator for Wideband MIMO Systems," Vehicular Technology, IEEE Transactions on, vol. 58, pp. 4698-4709, 2009.
[Loo91]  C. Loo and N. Secord, "Computer models for fading channels with applications to digital transmission," Vehicular Technology, IEEE Transactions on, vol. 40, pp. 700-707, 1991.
[Sit06] K. Sithamparanathan and A. D. S. Jayalath, "Narrow-Band Channel Simulator Based on Statistical Models Implemented on Texas Instruments C6713 DSP and National Instruments PCIE-6259 Hardware," presented at Communication systems, 2006. ICCS 2006. 10th IEEE Singapore International Conference on, 2006.

Important Links

Carnegie Mellon University Wireless Emulator http://www.cs.cmu.edu/~prs/emulator/