Goal
Attachments
OpenBTS - Matlab Model
Model Components
The simulation model is run using Mathworks tool Simulink Matlab v7:12 [29]. The model consists of transmitter, channel, and receiver.
• The transmitter: consists of random data source generator, GSM burst formatter, and digital up converter.
• The channel: is a Rayleigh fading channel, with variable fractional delay, and Additive White Gaussian Noise (AWGN). This channel model [14] can be used to simulate the system for the cases of typical urban, and rural areas.
• The receiver: consists of digital down conversion, timing and phase alignment, channel equalization, burst de-formatter, and bit error rate calculator.
Future Work
This model is used to simulate the second generation mobile networks only. It should be generic to included third and fourth generation mobile networks.
References
[14] D. Burgess and S. Harvind, “The OpenBTS Project.”, http://openbts.org,Jan. 2014.
[15] L. Kashka , “Embedded software radio design with the E100 software radio peripheral”, B.S. Thesis, Kansas State University, 2002
[16] P. Balister, “High Performance Interface between the OMAP3 and an FPGA”, Open SDR April, 2011 <www.opensdr.com>
[17] M. Ettus, “Ettus Research Products and Roadmap”, ETTUS research, September 2011, <www.ettus.com>
[29] J. G. Proakis, M. Salehi, and G. Bauch, “Contemporary communication systems using MATLAB”, 3rd edition, CengageBrain. com, 2012
[32] S. Yassin, I. R. Kamel, and H. Tawfik “A New Design Process to Reduce Resource Usage in SDR Systems”, The Ninth International Conference on Systems, Feb. 2014, pp.1-5.
To provide high level model to modify the Verilog code of OpenBTS project. The OpenBTS provides a cheap alternative to standard BTS .
Hence, rural communities can enjoy cheap and basic telecommunication services
using Global System for Mobile communications (GSM) [32].
 |
| High level block diagram of Open BTS Matlab model |
Attachments
OpenBTS - Matlab Model
Model Components
The simulation model is run using Mathworks tool Simulink Matlab v7:12 [29]. The model consists of transmitter, channel, and receiver.
• The transmitter: consists of random data source generator, GSM burst formatter, and digital up converter.
• The channel: is a Rayleigh fading channel, with variable fractional delay, and Additive White Gaussian Noise (AWGN). This channel model [14] can be used to simulate the system for the cases of typical urban, and rural areas.
• The receiver: consists of digital down conversion, timing and phase alignment, channel equalization, burst de-formatter, and bit error rate calculator.
Future Work
This model is used to simulate the second generation mobile networks only. It should be generic to included third and fourth generation mobile networks.
References
[14] D. Burgess and S. Harvind, “The OpenBTS Project.”, http://openbts.org,Jan. 2014.
[15] L. Kashka , “Embedded software radio design with the E100 software radio peripheral”, B.S. Thesis, Kansas State University, 2002
[16] P. Balister, “High Performance Interface between the OMAP3 and an FPGA”, Open SDR April, 2011 <www.opensdr.com>
[17] M. Ettus, “Ettus Research Products and Roadmap”, ETTUS research, September 2011, <www.ettus.com>
[29] J. G. Proakis, M. Salehi, and G. Bauch, “Contemporary communication systems using MATLAB”, 3rd edition, CengageBrain. com, 2012
[32] S. Yassin, I. R. Kamel, and H. Tawfik “A New Design Process to Reduce Resource Usage in SDR Systems”, The Ninth International Conference on Systems, Feb. 2014, pp.1-5.
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