Research Article
A low SINR synchronization system for direct-sequence spread-spectrum communications: radio prototype, verification testbed and experimental results
@INPROCEEDINGS{10.4108/tridentcom.2008.3137, author={Manish Amde and Jaewook Shim and Joel Marciano and Kenneth Yun and Rene Cruz}, title={A low SINR synchronization system for direct-sequence spread-spectrum communications: radio prototype, verification testbed and experimental results}, proceedings={4th International ICST Conference on Testbeds and Research Infrastructures for the Development of Networks \& Communities}, publisher={ICST}, proceedings_a={TRIDENTCOM}, year={2010}, month={5}, keywords={synchronization direct-sequence spread-spectrum radio prototype asynchronous communication wireless testbed}, doi={10.4108/tridentcom.2008.3137} }- Manish Amde
Jaewook Shim
Joel Marciano
Kenneth Yun
Rene Cruz
Year: 2010
A low SINR synchronization system for direct-sequence spread-spectrum communications: radio prototype, verification testbed and experimental results
TRIDENTCOM
ICST
DOI: 10.4108/tridentcom.2008.3137
Abstract
Ability to receive signals at low signal to interference and noise ratio (SINR) improves the spatial range and reliability of wireless networks. However, it is difficult to design a communication system that operates correctly in this type of environment. Our system uses a high spreading gain in the direct-sequence spread-spectrum (DSSS) modulation to combat the problems associated with low SINR. Undoubtedly, synchronization is a severe bottleneck for low SINR reception in DSSS.
In this paper, we present a prototype hardware implementation of a DSSS synchronization system, which was proposed in [1], a testbed, and experimental results. The synchronization system is implemented on a reconfigurable radio prototyping platform and verified on a hardware testbed. Controlled experiments are performed in the laboratory to calibrate its performance. Finally, over-the-air experiments are conducted at two outdoor test sites and the results are presented.
