Abstract
Software radio systems are playing fundamentally important role for developing intelligent and advanced wireless network system. For cooperative network design, especially loosely coupled system, e.g., the multi-user MIMO system for clients, and the coordinations over ethernet for APs, frequency offset is one of the most important issues needs to be addressed.
In this study, we investigate the role of frequency offset in cooperative packet recover system, especially when client transmissions are overwhelming the APs. In our design, the frequency offset is compensated with the frequently and periodically transmitted preambles. In our design, the impacts of frequency offset on cooperative packet recovery are studied. Further, we make evaluations on the cooperation performance across clients with different frequency offset. We find that, there are significant differences of cooperative packet recovery among clients. We show the performance of PDR and SINR in various carrier frequency offset levels. Our conclusion is, when multiple clients’ transmissions are involved for cooperative packet recovery, the frequency offset should be fully considered to enhance the network performance. Such feature could not be seen in regular transmission, where cooperative packet recovery is not applied.
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Li, P., Yang, P., Yan, Y., Shi, L. (2015). FOAM: Frequency-Offset Aware Multiple Client Selection for Cooperative Packet Recovery System. In: Wang, Y., Xiong, H., Argamon, S., Li, X., Li, J. (eds) Big Data Computing and Communications. BigCom 2015. Lecture Notes in Computer Science(), vol 9196. Springer, Cham. https://doi.org/10.1007/978-3-319-22047-5_4
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DOI: https://doi.org/10.1007/978-3-319-22047-5_4
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